US3899805A - Indented sheet - Google Patents
Indented sheet Download PDFInfo
- Publication number
- US3899805A US3899805A US379147A US37914773A US3899805A US 3899805 A US3899805 A US 3899805A US 379147 A US379147 A US 379147A US 37914773 A US37914773 A US 37914773A US 3899805 A US3899805 A US 3899805A
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- Prior art keywords
- projections
- sheet
- indented
- pocket areas
- indented sheet
- Prior art date
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- Expired - Lifetime
Links
- 239000012858 resilient material Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 2
- 238000007373 indentation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- -1 ethylene, propylene Chemical group 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
- A44B18/0046—Fasteners made integrally of plastics
- A44B18/0053—Fasteners made integrally of plastics in which each part has similar elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/06—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S24/00—Buckles, buttons, clasps
- Y10S24/30—Separable-fastener or required component thereof
- Y10S24/38—Each mating member having similarly shaped, sized, and operated interlocking face
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
- Y10T24/45152—Each mating member having similarly shaped, sized, and operated interlocking or intermeshable face
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24008—Structurally defined web or sheet [e.g., overall dimension, etc.] including fastener for attaching to external surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24628—Nonplanar uniform thickness material
- Y10T428/24661—Forming, or cooperating to form cells
Definitions
- ABSTRACT lndented sheet structure which describes a CI 24/213 B; 24/214; 24/2 surface of repeating hollow projections, and repeating 428/33; 428/99; 428/l4l; 264/299 pocket areas or valleys, at least certain of the pocket [51] Int.
- the present invention more specifically contemplates an indented sheet describing over at least part of a major surface thereof, repeating hollow projections, and repeating pocket areas or valleys.
- the outline of the latter being preferably of generally inverted sizing and configuration to the projections.
- At least certain of the projections include offset profiles such as in the form of an enlarged head or head portion, which collectively or individually define restricted neck openings in the hollows of adjacent pocket areas.
- FIG. 1 is an isometric view illustrating a section of indented sheet made according to the general teachings and principles of this invention
- FIG. 2 is a fragmentary top view isolating one of the many identical pocket areas of the indented sheet of FIG. I, and shows by imaginery dotted line representation, the restricted neck opening of the isolated pocket area.
- FIG. 3 is a cross sectional view of the indented sheet of FIG. I as it would appear if viewed along reference line X-X, and additionally shows a like indented sheet in mechanically interlocked assembly with the FIG. 1 sheet;
- FIG. 4 is a view like FIG. 3, only with the like sheets being nested by reversely facing the sheets, for compactness in storing and porting plural units thereof;
- FIG. 5 is a view like FIG. I, only showing a modified form of the invention
- FIG. 6 is a cross sectional view through FIG. 5, taken along reference line Y-Y thereof;
- FIGS. 7 and 8 are views like FIG. 6, respectively, only showing still further modified forms of the invention.
- FIG. 1 illustrates a section of indented sheet 10 describing over a major surface portion I2 thereof, spaced apart, hollow projections 14 of pyramidal shape and which repeat in a rectangular pattern.
- Each projection is capped by an element 16 of miniature pyramidal shape, which is positioned symmetrically over the upper tip or apex thereof, and which extends downwardly, and terminates approximately at the mid-height of the projection.
- Cap elements 16 may be attached by gluing, heat sealing, riveting, or the like, or may be integrally formed in molding the sheet.
- the cap elements define a species of what is referred to herein as an enlarged head or head portion l8 associated with each or at least certain of the projections 14.
- the underside of each head portion defines a circumferentially continuous offset profile 20, in the otherwise generally uniformly tapered sidewall of each projection.
- Sheet 10 further defines numerous spaced apart pocket areas or valleys 22 of substantially inverted configuration and sizing to projections 14, and which repeat in a like rectangular pattern to that of the projections.
- the offset profiles of projections 14 collec' tively define a restricted neck opening or passage 24, located at approximately mid-depth in each pocket area. The imaginery outline of one such restricted neck opening 24 is described by dotted lines in FIG. 2 to assist visualization thereof.
- FIG. 3 the same illustrates a pair of identical sheets 10 and 10' placed in interdigitated positioning with respect to the other, that is, with the projections 14 of the sheet 10 intimately cradled in the inverted pyramidal shaped pocket areas of sheet 10.
- sheets 10 and 10 are firmly pressed together, thereby resiliently forcing the enlarged head portions 18 of the projections past the restricted neck openings 24 of the opposite sheet.
- Each projection, at least in the central area of sheet 10 is thus forcibly slipped between a quadrant of projections on the opposite sheet 10, and vice versa, whereby profiles 20 abut in the horizontal plane, forming a fastening point at each corner 26 of the respective projections.
- sheets constructed under these teachings may be nested, for compactness, in storage and porting.
- projections 14 are tapered in a manner to fit and nest into the hollow undersides of the projections defined in a succeeding sheet in a nested or stacked arrangement thereof.
- Employing a solid cap element 16 makes it virtually impossible for the sheets to bind together when nested.
- a greater outside as opposed to the inside diameter of the projections can also be designed into the sheet structure to discourage binding between nested sheets such as, for example, if the sheets are to be constructed employing a hollow enlarged head portion of the types shown in subsequent embodiments hereof.
- a selectively placed hollow knob 28 is located at each corner 26a of the pyramidal shaped projections 14a of the modified sheet 10a shown here.
- the knobs collectively define a pocket area 22a of generally the same outline as that shown in FIGS. 1 and 2, wherein the projections surrounding each such pocket area 220 describe a restricted neck opening therein of similar character to pocket areas 22 above.
- the offset profile 20a of each projection 14a is discontinuous in form, rather than circumferentially continuous about the projection.
- sheet 10a will interlock with an identical sheet, or any generally like sheet such as sheet 10 supra, provided the proportions are correct between the two sheets sought to be interlocked.
- FIG. 7 embodiment depicts an offset profile 20b displaced downwardly from the mid-level height of pyramidal shaped projections 14b.
- the profile 20b is formed by indenting the side wall of projections 14b as at 30 near the base of each projection.
- the profile 20b may be continuous, by means of a circumferentially continuous indentation, or discontinuous by means of a localized indentation at each or certain of the corners 26b of projections 14h.
- the head portion 18b can comprise a local knob 28h selectively disposed at each of the four corners 26b of projections 14h, respectively.
- knobs 28b are caused to snap into the in dentations 30, respectively, resulting in a mechanical interlocking of the surfaces.
- the projections 14(- of sheet 101' demonstrate the use of a double enlarged head portion associated with projections l4c, such double head portion being indicated by 18c and 180'.
- the head portions may comprise a double interruption or undercut ledge structure 32 and 34 formed locally at corner(s) 26(- of each projection 146'.
- Such double interruption provides a double offset profile structure 20c and 200, and corresponding a double restricted neck opening in the pocket areas 22(- of the sheet.
- head portions 18c and 18c provide a double strata or double level mechanical fastening formation with the pocket areas of a like or generally like surface, and vice versa.
- projections of the characteristic type intended herein may be formed to have any practical and desired shape, so long as the same include an offset profile capable of defining an appropriately sized, restricted neck opening in a sufficient number of the pocket areas, to provide a surface structure firmly attachable by interlocking to a like surface, or the equivalent thereof.
- the invention may be practiced utilizing generally spherical or hemispherical projections.
- saddle-shaped generating areas as shown in US. Pat. No. 3,227,598, triangular and various other polygonal shapes which may be truncated or otherwise, provided such projections are modified in structure according to the teachings hereof.
- the projections intended hereby may be of uniform height or tapered.
- one side of the sheet flat such as the underside of sheet 10 illustrated in FIG. I
- the present invention can be practiced employing sheets having raised areas on both sides thereof, by modifying at least one side of such sheet in accordance with these teachings.
- the pattern is rectangular in nature, that is, each quadrant of projections collectively defines or surrounds a pocket, and vice versa
- numerous other patterns may be employed so long as the teachings herein are observed.
- Preferred materials for constructing the sheet structure hereof includes synthetic resinous thermoplastics such as, for example, vinyl chloride, styrene, ethylene, propylene. and various like materials as homopolymers or copolymers. Particularly impact polystyrene would be an excellent material for use herein.
- the sheets if formed from formable plastic sheet materials such as the above or other polymeric sheet materials, can be fabricated by heat and/or pressure forming techniques.
- An indented sheet describing at a surface portion thereof, repeating, regularly distributed, hollow projections, a like distribution of repeating pocket areas, at least certain of such projections including enlarged head portions, respectively, restricted neck regions defined in said pocket areas through means of said enlarged heat portions, said enlarged heat portions comprising cap elements affixed to said projections, such indented sheet being comprised of sufficiently resilient material for deformable, resilient passage of such enlarged heat portions by a like-sized restricted neck region for purpose of interlocking such surface portion to a like surface or the equivalent thereof.
- An indented sheet structure describing along a surface portion thereof the combination comprising a multi-linear pattern of hollow projections, a like pattern of repeating pocket areas, such patterns being out of phase so that said surface portion is interdigitable with a like surface, at least certain of said projections having cap elements affixed thereto and defining restricted neck regions in said pocket areas, said indented sheet being comprised of sufficiently resilient material for deformable, resilient passage of such cap elements by a like-sized restricted neck region for purpose of interlocking such surface portion with a like surface or the equivalent thereof.
Abstract
Indented sheet structure is disclosed which describes a surface of repeating hollow projections, and repeating pocket areas or valleys, at least certain of the pocket areas having a restricted neck opening defined by the side profile(s) of projection(s) in adjacent positioning thereto. Like sheets are interdigitatable, in which posture, the projections snap fit into the restricted pocket areas of the opposite sheet, to mechanically interlock the sheets at a multiplicity of distributed points.
Description
C United States Patent 11 1 1111 3,899,805 McMillan Aug. 19, 1975 [5 1 INDENTED SHEET 3,086,899 4/1963 Smith et al l6l/13l 3 08.924 10 I96 Ad 6l 75 Inventor: William J. McMillan, Midland, 3 l
Mich.
' Primary E raminerGeorge F. Lesmes Asslgnee: h Dow cli'emlcal Company Assistant E.raminerPaul J. Thibodeau M|d|and- Attorney, Agent, or Firm-Burke M. Halldorson [22] Filed: July l3, 1973 [2]] Appl. No.: 379,147 [57] ABSTRACT lndented sheet structure is disclosed which describes a CI 24/213 B; 24/214; 24/2 surface of repeating hollow projections, and repeating 428/33; 428/99; 428/l4l; 264/299 pocket areas or valleys, at least certain of the pocket [51] Int. Cl .r B32!) 3/30 areas having a restricted neck opening d fi d by the [58] new of Search 61/1 1231 side profile(s) of projecti0n(s) in adjacent positioning l6l/l I9, I20, 125, I30, I27; 52/519; thereto. Like sheets are interdigitatable, in which pos- 264/24] 1 299 ture, the projections snap fit into the restricted pocket areas of the opposite sheet, to mechanically interlock [56] References the sheets at a multiplicity of distributed points. UNITED STATES PATENTS 2,549,!89 4/1951 Gabo [61/1 19 7 8 Drawmg figures PATENTEI] AUG 1 9 I975 SHEET 1 BF 2 INDENTED SHEET The primary objective of this invention is to provide indented sheet structure describing a surface which is mechanically interlockable with a like surface.
The present invention more specifically contemplates an indented sheet describing over at least part of a major surface thereof, repeating hollow projections, and repeating pocket areas or valleys. the outline of the latter being preferably of generally inverted sizing and configuration to the projections. At least certain of the projections include offset profiles such as in the form of an enlarged head or head portion, which collectively or individually define restricted neck openings in the hollows of adjacent pocket areas. When interdigitated with a like surface, the sheets mechanically interlock or tie together through forcible entry of the projections into the restricted pocket areas of the like sheet.
Further features and advantages of the invention will be more apparent in and by the following more detailed description and specification hereof, taken in connec' tion with the accompanying drawings wherein:
FIG. 1 is an isometric view illustrating a section of indented sheet made according to the general teachings and principles of this invention;
FIG. 2 is a fragmentary top view isolating one of the many identical pocket areas of the indented sheet of FIG. I, and shows by imaginery dotted line representation, the restricted neck opening of the isolated pocket area.
FIG. 3 is a cross sectional view of the indented sheet of FIG. I as it would appear if viewed along reference line X-X, and additionally shows a like indented sheet in mechanically interlocked assembly with the FIG. 1 sheet;
FIG. 4 is a view like FIG. 3, only with the like sheets being nested by reversely facing the sheets, for compactness in storing and porting plural units thereof;
FIG. 5 is a view like FIG. I, only showing a modified form of the invention;
FIG. 6 is a cross sectional view through FIG. 5, taken along reference line Y-Y thereof; and
FIGS. 7 and 8 are views like FIG. 6, respectively, only showing still further modified forms of the invention.
Referring now to the drawing, FIG. 1 illustrates a section of indented sheet 10 describing over a major surface portion I2 thereof, spaced apart, hollow projections 14 of pyramidal shape and which repeat in a rectangular pattern. Each projection is capped by an element 16 of miniature pyramidal shape, which is positioned symmetrically over the upper tip or apex thereof, and which extends downwardly, and terminates approximately at the mid-height of the projection.
Referring now to FIG. 3 the same illustrates a pair of identical sheets 10 and 10' placed in interdigitated positioning with respect to the other, that is, with the projections 14 of the sheet 10 intimately cradled in the inverted pyramidal shaped pocket areas of sheet 10. To obtain this position, sheets 10 and 10 are firmly pressed together, thereby resiliently forcing the enlarged head portions 18 of the projections past the restricted neck openings 24 of the opposite sheet. Each projection, at least in the central area of sheet 10, is thus forcibly slipped between a quadrant of projections on the opposite sheet 10, and vice versa, whereby profiles 20 abut in the horizontal plane, forming a fastening point at each corner 26 of the respective projections. The like sheets 10 and 10 are thus expediently locked together at numerous generally regularly distributed points, thereby avoiding entirely the need for, or only having supplemental need for extraneous rivets, staples, adhesives, and the like, to fasten or tie together the indented sheet structure of this invention.
Referring now to FIG. 4, sheets constructed under these teachings may be nested, for compactness, in storage and porting. To this end projections 14 are tapered in a manner to fit and nest into the hollow undersides of the projections defined in a succeeding sheet in a nested or stacked arrangement thereof. Employing a solid cap element 16 makes it virtually impossible for the sheets to bind together when nested. A greater outside as opposed to the inside diameter of the projections can also be designed into the sheet structure to discourage binding between nested sheets such as, for example, if the sheets are to be constructed employing a hollow enlarged head portion of the types shown in subsequent embodiments hereof.
Referring specifically to the embodiment of FIGS. 5 and 6, a selectively placed hollow knob 28 is located at each corner 26a of the pyramidal shaped projections 14a of the modified sheet 10a shown here. The knobs collectively define a pocket area 22a of generally the same outline as that shown in FIGS. 1 and 2, wherein the projections surrounding each such pocket area 220 describe a restricted neck opening therein of similar character to pocket areas 22 above. A distinction, however, is that the offset profile 20a of each projection 14a is discontinuous in form, rather than circumferentially continuous about the projection. Functionally, sheet 10a will interlock with an identical sheet, or any generally like sheet such as sheet 10 supra, provided the proportions are correct between the two sheets sought to be interlocked.
The invention is further illustrated by way of the FIG. 7 embodiment which depicts an offset profile 20b displaced downwardly from the mid-level height of pyramidal shaped projections 14b. The profile 20b is formed by indenting the side wall of projections 14b as at 30 near the base of each projection. The profile 20b may be continuous, by means of a circumferentially continuous indentation, or discontinuous by means of a localized indentation at each or certain of the corners 26b of projections 14h. Using the condition of four local indentations associated with each projection, the head portion 18b can comprise a local knob 28h selectively disposed at each of the four corners 26b of projections 14h, respectively. Each such knob in linear alignment with, but spaced upwardly from an indenta tion 30 at each such corner position. For reasons as will be evident, the spacing of the knobs from the op of projection 14b, corresponds to the spacing of the indentations from the base of the projections. in the in terlocked position between interdigitated sheets (not shown), knobs 28b are caused to snap into the in dentations 30, respectively, resulting in a mechanical interlocking of the surfaces.
By way of yet still another illustration of the invention, in FIG. 8 the projections 14(- of sheet 101' demonstrate the use of a double enlarged head portion associated with projections l4c, such double head portion being indicated by 18c and 180'. Assuming again truncated pyramidal shaped projections set in rectangular pattern, the head portions may comprise a double interruption or undercut ledge structure 32 and 34 formed locally at corner(s) 26(- of each projection 146'. Such double interruption. in turn, provides a double offset profile structure 20c and 200, and corresponding a double restricted neck opening in the pocket areas 22(- of the sheet. in the interdigitated position of sheet 10c with a like surface (not shown), it will be apparent that the head portions 18c and 18c provide a double strata or double level mechanical fastening formation with the pocket areas of a like or generally like surface, and vice versa.
Referring now to some of the generalities of this invention, projections of the characteristic type intended herein may be formed to have any practical and desired shape, so long as the same include an offset profile capable of defining an appropriately sized, restricted neck opening in a sufficient number of the pocket areas, to provide a surface structure firmly attachable by interlocking to a like surface, or the equivalent thereof. As illustrative examples, therefore, the invention may be practiced utilizing generally spherical or hemispherical projections. saddle-shaped generating areas as shown in US. Pat. No. 3,227,598, triangular and various other polygonal shapes which may be truncated or otherwise, provided such projections are modified in structure according to the teachings hereof. The projections intended hereby may be of uniform height or tapered. Moreover, while it is oftentimes desirable to have one side of the sheet flat, such as the underside of sheet 10 illustrated in FIG. I, it is understood that the present invention can be practiced employing sheets having raised areas on both sides thereof, by modifying at least one side of such sheet in accordance with these teachings. Also, while the invention has been described particularly whereby the pattern is rectangular in nature, that is, each quadrant of projections collectively defines or surrounds a pocket, and vice versa, numerous other patterns may be employed so long as the teachings herein are observed.
Preferred materials for constructing the sheet structure hereof includes synthetic resinous thermoplastics such as, for example, vinyl chloride, styrene, ethylene, propylene. and various like materials as homopolymers or copolymers. Particularly impact polystyrene would be an excellent material for use herein. The sheets if formed from formable plastic sheet materials such as the above or other polymeric sheet materials, can be fabricated by heat and/or pressure forming techniques.
While certain representative embodiments and details have been shown for the purpose of illustrating the invention, it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention.
What is claimed is:
1. An indented sheet describing at a surface portion thereof, repeating, regularly distributed, hollow projections, a like distribution of repeating pocket areas, at least certain of such projections including enlarged head portions, respectively, restricted neck regions defined in said pocket areas through means of said enlarged heat portions, said enlarged heat portions comprising cap elements affixed to said projections, such indented sheet being comprised of sufficiently resilient material for deformable, resilient passage of such enlarged heat portions by a like-sized restricted neck region for purpose of interlocking such surface portion to a like surface or the equivalent thereof.
2. The indented sheet of claim I wherein said pocket areas are of generally inverted configuration and size to the projections.
3. The indented sheet of claim 2 wherein said projections taper away from the plane of the sheet.
4. An indented sheet structure describing along a surface portion thereof the combination comprising a multi-linear pattern of hollow projections, a like pattern of repeating pocket areas, such patterns being out of phase so that said surface portion is interdigitable with a like surface, at least certain of said projections having cap elements affixed thereto and defining restricted neck regions in said pocket areas, said indented sheet being comprised of sufficiently resilient material for deformable, resilient passage of such cap elements by a like-sized restricted neck region for purpose of interlocking such surface portion with a like surface or the equivalent thereof.
5. The indented sheet of claim 4 wherein said projections taper away from the plane of the sheet.
6. The indented sheet of claim 5 wherein said pocket areas are of generally inverted size and configuration to said projections.
7. The indented sheet of claim 6 wherein said projections are generally pyramidal in shape.
i l k UNITED STATES PATENT AND TRADEMARK OFFICE CERTIFICATE OF CORRECTION PATENT NO. I 3,899,805
DATED 1 August 19, 1975 INV ENTOR(S) William J. McMillan It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
Column 4, line 24, delete "heat", first and second instance, and insert -head therefore.
Column 4, line 28, delete "heat" and insert -head--.
Signed and Scaled this twenty-sev h Day Of January 1976 [SEAL] A Hes r:
RUTH C. MASON C. MARSHALL DANN Arresting Officer (nmmissirmer oj'Parents and Trademarks
Claims (7)
1. An indented sheet describing at a surface portion thereof, repeating, regularly distributed, hollow projections, a like distribution of repeating pocket areas, at least certain of such projections including enlarged head portions, respectively, restricted neck regions defined in said pocket areas through means of said enlarged heat portions, said enlarged heat portions comprising cap elements affixed to said projections, such indented sheet being comprised of sufficiently resilient material for deformable, resilient passage of such enlarged heat portions by a like-sized restricted neck region for purpose of interlocking such surface portion to a like surface or the equivalent thereof.
2. The indented sheet of claim 1 wherein said pocket areas are of generally inverted configuration and size to the projections.
3. The indented sheet of claim 2 wherein said projections taper away from the plane of the sheet.
4. An indented sheet structure describing along a surface portion thereof the combination comprising a multi-linear pattern of hollow projections, a like pattern of repeating pocket areas, such patterns being out of phase so that said surface portion is interdigitable with a like surface, at least certain of said projections having cap elements affixed thereto and defining restricted neck regions in said pocket areas, said indented sheet being comprised of sufficiently resilient material for deformable, resilient passage of such cap elements by a like-sized restricted neck region for purpose of interlocking such surface portion with a like surface or the equivalent thereof.
5. The indented sheet of claim 4 wherein said projections taper away from the plane of the sheet.
6. The indented sheet of claim 5 wherein said pocket areas are of generally inverted size and configuration to said projections.
7. The indented sheet of claim 6 wherein said projections are generally pyramidal in shape.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US379147A US3899805A (en) | 1973-07-13 | 1973-07-13 | Indented sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US379147A US3899805A (en) | 1973-07-13 | 1973-07-13 | Indented sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
US3899805A true US3899805A (en) | 1975-08-19 |
Family
ID=23496009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US379147A Expired - Lifetime US3899805A (en) | 1973-07-13 | 1973-07-13 | Indented sheet |
Country Status (1)
Country | Link |
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US (1) | US3899805A (en) |
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US4064299A (en) * | 1975-10-02 | 1977-12-20 | Formac International, Inc. | Anti-friction composite with metal backing of rigid prongs and lubricant overlay |
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US4581792A (en) * | 1983-02-18 | 1986-04-15 | Clements Industries Incorporated | Separable fastener |
US4769895A (en) * | 1987-03-09 | 1988-09-13 | Milliken Research Corporation | Interlocking dust control mats |
US4875259A (en) * | 1986-09-08 | 1989-10-24 | Minnesota Mining And Manufacturing Company | Intermeshable article |
US5088164A (en) * | 1986-09-08 | 1992-02-18 | Minnesota Mining And Manufacturing Company | Container with intermeshable closure members |
US5113555A (en) * | 1986-09-08 | 1992-05-19 | Minnesota Mining And Manufacturing Company | Container with intermeshable closure members |
US5201101A (en) * | 1992-04-28 | 1993-04-13 | Minnesota Mining And Manufacturing Company | Method of attaching articles and a pair of articles fastened by the method |
US5212855A (en) * | 1991-08-05 | 1993-05-25 | Mcganty Leo F | Multiple button closure-fastener |
WO1994020290A1 (en) * | 1993-03-08 | 1994-09-15 | Form-Rite Plastics Developments Pty. Limited | Former for core sandwich in composite reinforced plastics |
US5490808A (en) * | 1993-01-28 | 1996-02-13 | Minnesota Mining And Manufacturing Company | Abrasive attachment system for rotative abrading applications |
WO1996023621A1 (en) * | 1995-02-01 | 1996-08-08 | Thyssen Stahl Ag | Double ply metal sheet with an upper boom and a lower boom |
US5611122A (en) * | 1993-07-28 | 1997-03-18 | Minnesota Mining And Manufacturing | Interengaging fastener having reduced noise generation |
US5625929A (en) * | 1993-08-05 | 1997-05-06 | Minnesota Mining And Manufacturing | Interengaging fastener member |
US5634245A (en) * | 1995-07-14 | 1997-06-03 | Minnesota Mining And Manufacturing Company | Structured surface fastener |
US5657516A (en) * | 1995-10-12 | 1997-08-19 | Minnesota Mining And Manufacturing Company | Dual structured fastener elements |
US5662853A (en) * | 1993-08-05 | 1997-09-02 | Minnesota Mining Manufacturing Company | Affixation member for decorating or protecting structures and methods of making same |
US5671511A (en) * | 1993-08-25 | 1997-09-30 | Minnesota Mining And Manufacturing Company | Interengaging fastener member having fabric layer |
US5747142A (en) * | 1993-03-08 | 1998-05-05 | Form-Rite Plastics Development Pty., Ltd. | Former for core sandwich in composite reinforced plastics |
WO1998029003A1 (en) * | 1996-12-30 | 1998-07-09 | Leonard Duffy | Interlocking device |
WO1999032005A1 (en) | 1997-12-23 | 1999-07-01 | Minnesota Mining And Manufacturing Company | Self mating adhesive fastener element; articles including a self mating adhesive fastener element; and methods for producing and using |
US5976672A (en) * | 1996-11-01 | 1999-11-02 | Loadhandler Industries, Inc. | Cargo liner and cargo holder system |
US6076238A (en) * | 1999-04-13 | 2000-06-20 | 3M Innovative Properties Company | Mechanical fastener |
US6544245B2 (en) | 2001-05-10 | 2003-04-08 | Velcro Industries B.V. | Bi-stable fastening |
US6641096B2 (en) | 2001-09-13 | 2003-11-04 | 3M Innovative Properties Company | Stretch releasing adhesive tape article with bundling strap |
US20050204517A1 (en) * | 2004-03-19 | 2005-09-22 | Nike, Inc. | Closure mechanism for apparel |
US20050227600A1 (en) * | 2004-04-08 | 2005-10-13 | 3M Innovative Properties Company | Attachment system for a sanding tool |
US20070212966A1 (en) * | 2006-01-31 | 2007-09-13 | Corovin Gmbh | Apparatus and Method for Stretching an Extensible Sheet Material |
US20070251170A1 (en) * | 2004-12-23 | 2007-11-01 | Christoph Uhlig | Building Panel in Particular for Wall Covering and Method for the Production Thereof |
US20080034560A1 (en) * | 2004-03-10 | 2008-02-14 | Duffy Leonard A | Self-adhering device and method |
US20100233428A1 (en) * | 2009-03-13 | 2010-09-16 | Keith Joseph Stone | Article having a seal and process for forming the same |
US20120228252A1 (en) * | 2011-03-11 | 2012-09-13 | Electrolux Home Products, Inc. | Stabilizing panel |
US20120315411A1 (en) * | 2011-06-07 | 2012-12-13 | Jerry Castelle | Vacuum insulation panel - [ which prevents heat loss or heat gain in a building ] |
US20190255557A1 (en) * | 2018-02-21 | 2019-08-22 | Brent Ritchie | Device to facilitate painting of molding |
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US10596480B1 (en) * | 2012-11-16 | 2020-03-24 | Mattel, Inc. | Building components |
US20210246922A1 (en) * | 2018-04-23 | 2021-08-12 | Rigidcore Group Llc | Fastening System, and Methods of Making and Using the System |
US20210381771A1 (en) * | 2020-04-23 | 2021-12-09 | Brentwood Industries, Inc. | Drift eliminator and method of making |
US11312482B2 (en) | 2019-06-22 | 2022-04-26 | Textron Innovations Inc. | Component alignment systems for aircraft |
US20230110428A1 (en) * | 2021-10-11 | 2023-04-13 | Ford Global Technologies, Llc | Baseplate-based accessory attachment system and attachment method for vehicle |
US20230111839A1 (en) * | 2021-10-11 | 2023-04-13 | Ford Global Technologies, Llc | Vehicle accessory attachment system and attachment method |
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Cited By (59)
Publication number | Priority date | Publication date | Assignee | Title |
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US4064299A (en) * | 1975-10-02 | 1977-12-20 | Formac International, Inc. | Anti-friction composite with metal backing of rigid prongs and lubricant overlay |
US4348442A (en) * | 1979-08-17 | 1982-09-07 | Figge Irving E | Structural panel |
US4395448A (en) * | 1981-12-22 | 1983-07-26 | Research-Cottrell, Inc. | Filling sheet attaching means for gas and liquid contact apparatus and method of assembly of plural parallel filling sheets |
US4581792A (en) * | 1983-02-18 | 1986-04-15 | Clements Industries Incorporated | Separable fastener |
WO1986002120A1 (en) * | 1984-10-04 | 1986-04-10 | Bta Boden-Technik Ag | Flexible bearing sheet and utilization thereof for floors |
US4875259A (en) * | 1986-09-08 | 1989-10-24 | Minnesota Mining And Manufacturing Company | Intermeshable article |
US5088164A (en) * | 1986-09-08 | 1992-02-18 | Minnesota Mining And Manufacturing Company | Container with intermeshable closure members |
US5113555A (en) * | 1986-09-08 | 1992-05-19 | Minnesota Mining And Manufacturing Company | Container with intermeshable closure members |
US4769895A (en) * | 1987-03-09 | 1988-09-13 | Milliken Research Corporation | Interlocking dust control mats |
US5212855A (en) * | 1991-08-05 | 1993-05-25 | Mcganty Leo F | Multiple button closure-fastener |
US5201101A (en) * | 1992-04-28 | 1993-04-13 | Minnesota Mining And Manufacturing Company | Method of attaching articles and a pair of articles fastened by the method |
US5618225A (en) * | 1993-01-28 | 1997-04-08 | Minnesota Mining And Manufacturing Company | Abrasive attachment system for rotative abrading applications |
US5490808A (en) * | 1993-01-28 | 1996-02-13 | Minnesota Mining And Manufacturing Company | Abrasive attachment system for rotative abrading applications |
US5747142A (en) * | 1993-03-08 | 1998-05-05 | Form-Rite Plastics Development Pty., Ltd. | Former for core sandwich in composite reinforced plastics |
WO1994020290A1 (en) * | 1993-03-08 | 1994-09-15 | Form-Rite Plastics Developments Pty. Limited | Former for core sandwich in composite reinforced plastics |
US5611122A (en) * | 1993-07-28 | 1997-03-18 | Minnesota Mining And Manufacturing | Interengaging fastener having reduced noise generation |
US5625929A (en) * | 1993-08-05 | 1997-05-06 | Minnesota Mining And Manufacturing | Interengaging fastener member |
US5662853A (en) * | 1993-08-05 | 1997-09-02 | Minnesota Mining Manufacturing Company | Affixation member for decorating or protecting structures and methods of making same |
US5671511A (en) * | 1993-08-25 | 1997-09-30 | Minnesota Mining And Manufacturing Company | Interengaging fastener member having fabric layer |
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US5634245A (en) * | 1995-07-14 | 1997-06-03 | Minnesota Mining And Manufacturing Company | Structured surface fastener |
US5657516A (en) * | 1995-10-12 | 1997-08-19 | Minnesota Mining And Manufacturing Company | Dual structured fastener elements |
US5976672A (en) * | 1996-11-01 | 1999-11-02 | Loadhandler Industries, Inc. | Cargo liner and cargo holder system |
WO1998029003A1 (en) * | 1996-12-30 | 1998-07-09 | Leonard Duffy | Interlocking device |
WO1999032005A1 (en) | 1997-12-23 | 1999-07-01 | Minnesota Mining And Manufacturing Company | Self mating adhesive fastener element; articles including a self mating adhesive fastener element; and methods for producing and using |
US6159596A (en) * | 1997-12-23 | 2000-12-12 | 3M Innovative Properties Company | Self mating adhesive fastener element articles including a self mating adhesive fastener element and methods for producing and using |
US6076238A (en) * | 1999-04-13 | 2000-06-20 | 3M Innovative Properties Company | Mechanical fastener |
US6544245B2 (en) | 2001-05-10 | 2003-04-08 | Velcro Industries B.V. | Bi-stable fastening |
US6641096B2 (en) | 2001-09-13 | 2003-11-04 | 3M Innovative Properties Company | Stretch releasing adhesive tape article with bundling strap |
US20080034560A1 (en) * | 2004-03-10 | 2008-02-14 | Duffy Leonard A | Self-adhering device and method |
US7950114B2 (en) | 2004-03-10 | 2011-05-31 | Leonard Arnold Duffy | Self-adhering device and method |
US7036190B2 (en) * | 2004-03-19 | 2006-05-02 | Nike, Inc. | Closure mechanism for apparel |
US20050204517A1 (en) * | 2004-03-19 | 2005-09-22 | Nike, Inc. | Closure mechanism for apparel |
US20050227600A1 (en) * | 2004-04-08 | 2005-10-13 | 3M Innovative Properties Company | Attachment system for a sanding tool |
US8002612B2 (en) | 2004-04-08 | 2011-08-23 | 3M Innovative Properties Company | Attachment system for a sanding tool |
US8402715B2 (en) * | 2004-12-23 | 2013-03-26 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Building panel in particular for wall covering and method for the production thereof |
US20070251170A1 (en) * | 2004-12-23 | 2007-11-01 | Christoph Uhlig | Building Panel in Particular for Wall Covering and Method for the Production Thereof |
US20070212966A1 (en) * | 2006-01-31 | 2007-09-13 | Corovin Gmbh | Apparatus and Method for Stretching an Extensible Sheet Material |
US8231377B2 (en) * | 2006-01-31 | 2012-07-31 | Fiberweb Corovin Gmbh | Apparatus and method for stretching an extensible sheet material |
US9271879B2 (en) * | 2009-03-13 | 2016-03-01 | The Procter & Gamble Company | Article having a seal and process for forming the same |
US10543637B2 (en) | 2009-03-13 | 2020-01-28 | The Procter & Gamble Company | Article having a seal and process for forming the same |
US20100233428A1 (en) * | 2009-03-13 | 2010-09-16 | Keith Joseph Stone | Article having a seal and process for forming the same |
US20120228252A1 (en) * | 2011-03-11 | 2012-09-13 | Electrolux Home Products, Inc. | Stabilizing panel |
US9028020B2 (en) * | 2011-03-11 | 2015-05-12 | Electrolux Home Products, Inc. | Stabilizing panel |
US9867463B2 (en) | 2011-03-11 | 2018-01-16 | Electrolux Home Products, Inc. | Stabilizing panel |
US10674823B2 (en) | 2011-03-11 | 2020-06-09 | Electrolux Home Products, Inc. | Stabilizing panel |
US20120315411A1 (en) * | 2011-06-07 | 2012-12-13 | Jerry Castelle | Vacuum insulation panel - [ which prevents heat loss or heat gain in a building ] |
US10596480B1 (en) * | 2012-11-16 | 2020-03-24 | Mattel, Inc. | Building components |
US20190255557A1 (en) * | 2018-02-21 | 2019-08-22 | Brent Ritchie | Device to facilitate painting of molding |
US11192135B2 (en) * | 2018-02-21 | 2021-12-07 | Brent Ritchie | Device to facilitate painting of molding |
US20210246922A1 (en) * | 2018-04-23 | 2021-08-12 | Rigidcore Group Llc | Fastening System, and Methods of Making and Using the System |
WO2019209324A1 (en) * | 2018-04-27 | 2019-10-31 | Brentwood Industries, Inc. | Mechanical assembly for securing sheets and related method |
US11333180B2 (en) | 2018-04-27 | 2022-05-17 | Brentwood Industries, Inc. | Mechanical assembly for securing sheets and related method |
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US11828310B2 (en) | 2018-04-27 | 2023-11-28 | Brentwood Industries, Inc. | Mechanical assembly for securing sheets and related method |
US11312482B2 (en) | 2019-06-22 | 2022-04-26 | Textron Innovations Inc. | Component alignment systems for aircraft |
US20210381771A1 (en) * | 2020-04-23 | 2021-12-09 | Brentwood Industries, Inc. | Drift eliminator and method of making |
US20230110428A1 (en) * | 2021-10-11 | 2023-04-13 | Ford Global Technologies, Llc | Baseplate-based accessory attachment system and attachment method for vehicle |
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