US2555564A

US2555564A - Expandible adhesive material

Info

Publication number: US2555564A
Application number: US100933A
Authority: US
Inventors: Oscar A Berman
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-06-23
Filing date: 1949-06-23
Publication date: 1951-06-05
Anticipated expiration: 1968-06-05

Description

June 5, v1951 o. A. BERMAN 2,555,564

EXPANDABLE ADHESIVE MATERIAL Filed June 25, 1949 F|G.5. sl s2 s3 s4 S5 se 1N VENTOR Patented June 5, 1951 UNITED STATES PATENT OFFICE EXPANDIBLE ADHESIVE MATERIAL Oscar A. Berman, New York, N. Y. Application June 23, 1949, Serial No. 100,933

3 Claims. 1

This invention relates to improvements in expandable adhesive materials, and particularly to expandable adhesive sheets, rolls, tapes, etc. of paper, plastics, fabric, etc.

Although my invention may take an infinite variety of forms, the preferred form of which is illustrated in the drawing, it may be most easily explained and understood by first disclosing its application to ordinary paper sealing tape of the gummed type and to the so-called pressure sensitive type. First let us consider ordinary gummed paper tape.

A vast amount of gummed paper tape is sold for commercial and industrial purposes. One of the uses to which it is applied is the sealing of card-board or fiber cartons to avoid the necessity of tying with twine. Gummed paper sealing tape is less costly than twine, is applied more quickly and makes a more secure and effective package than twine. It possesses many and diverse advantages over twine in various applica- `tions which it is not necessary to describe here.

Its principal disadvantage lies in the fact that it is most effective when applied to at surfaces. It is not ordinarily easily applied nor does it ordinarily make a neat package when applied to uneven surfaces. l

To overcome this disadvantage is one of the objects of my invention. I accomplish this by pleating the tape to give it whatever degree of expandability is necessary to enable it to adhere to rough and uneven surfaces. The size and variety of pleats used is determined by the shape of the package to which it is to be applied.

Another disadvantage of ordinary gummed paper tape is that for increased binding strength it is frequently necessary to apply several layers of tape one upon another. As each layer adheres to the layer below it, a break in the carton underneath all the layers is Very likely to extend through all the adhering layers.

To overcome this disadvantage it is an object of my invention to provide a tape of increased strength, part of the surface of which does not adhere to the carton or to the underlyingV layer of tape where even more than one layer of increased strength is used. I accomplish this by pleating the tape longitudinally with respect to its edges, using a wider tape of the same weight or thickness which, after pleating, is of the same width as the ilat tape which it is designed to replace, thereby providing increased strength longitudinally and at the same time protecting a part of the surface of the tape against breakage of the carton because that part of the tape does not adhere to the carton but is detached therefrom.

Another disadvantage of gummed paper tape is that it must be applied in straight lines. In applications of circular shape, eventhough on a ilat surface, it is practically impossible to use gummed paper tape because neither edge is elastic or expandable so that it is not practical to curve the tape by extending one edge longitudinally over a greater distance than the other.

I overcome this disadvantage of ordinary gummed tape by pleating the tape diagonally at whatever angle is necessary to fit the degree of curvature to which the tape is to be applied.

These and other advantages of my invention will become more evident by a reference to the drawings in which:

Figure l is a plan View of the preferred form of my invention applied to a strip of gummed tape with scalloped edges.

Figure 2 is a. plan View oi the same strip of gummed tape pleated to make it expandable.

Figure 3 is a cross section of the pleated strip of tape taken along the line 3 3 of Figure 2.

Figure 4 is a cross sectional view of the saine strip of tape shown in Figure 3 expanded to almost its entire length, to show more specically how the pleated tape extends to provide expandability.

Figure 5 is a detailed sectional View of the tape.

In Figures 1 and 3 the drawing shows a series of segments Sl, S2, S3, S4 and S5 of a strip of gummed tape having scalloped edges, 2-2, 3--3, i-ll, 5-5 and G-E. The points at which the tape is to be folded back and forth upon itself to form pleats are indicated by the dash and dot lines l-l, 8 8', ii--l, ill-Ill and II-I l', at approximately one-third of the segments Si, S2, S3, S4 and S5, and the dash and dot lines l2-l2, l3-l3, ll-M and IE--I between said segments.

In Figure 2 the segments S2, Sil, S4 and S5 of tape l, are shown pleated, with the fold lines 8--8, 9 9, Ill-lil and Il-il' visible from the front, the fold lines l2-I2, lB-IS' and Ill-Ill" falling behind the fold lines 8--8, 9-9', I0--I 0 and l E-l l', and therefore, not indicated. Fold point l--l in segment Sl is indicated because segment Sl is shown unfolded. Fold line ll-ll' is indicated by a dotted line because it is not covered by a pleat line in the contiguous segment. The covered portions of segments SI, S2, S3 and S4 are indicated by the dotted line extensions to scallop lines 2-2',f33, Li-Il and 5 5. Those portions of segments S2, S3, S4 and S5, projecting beyond the extremities of segments SI, S2, S3 and S are indicated by the numerals l6-|6, |l-|1, lil-I8 and Iii-49.

In Figure 3 the cross sectional view shows how segment SI folds underneath segment S2, how

Yin one or more directions.

pleat.

3 segment S2 folds below segment 3, S3 below S4 and S4 below S5, also how segment S2 folds back upon itself above segment Sl, how S3 folds back upon itself above S2, S4 above S3, and S5 above S4. Here again the

fold lines

8, 9, l and Il are indicated.

In Figure 4 the angular form of the segments Si, S2, S3, S4 and S5 of tape are more clearly indicated, as are also the fold lines l, 8, 9, l0 and il.

In Figure 5 the tape yis illustrated in an unfolded state to more clearly show the fold lines.

Throughout this disclosure the termV pleat is intended to indicate any manner, shape or form of folding back and forth upon itself, the body of the element forming the basis for the adhesive material, thusproviding expandability y Between the forms of pleats shown there lies an endless variety of other forms. There are also other types ofwpleats, as for instance, what is known as a box pleat, or the opposite of it, known as an inverted box Whatever the form, my invention embraces any and all foldings, longitudinal, transverse, diagonal, etc., whereby one edge of an adhesive tape may be expanded with or without expansion of the other edge, or any point between the edges may be expanded without .a corresponding expansion of either edge.

Y It is this flexibility in expansion that enables tape made as I have indicated to follow the contour of smooth, rough, straight, arcuate, hollow, elevated or other irregular surfaces or forms.

Likewise, these characteristics of tape apply to rolls, sheets, strips and other forms of adhesiveV elements used for various purposes.

What has been said about gummed tapes Will nowV be understood to be applicable to pressure Sensitive, surgical and other varieties of adhesives. For pressure sensitive tapes various types of backing may be used to prevent adhesion of the front of the tape to the back thereof. In most cases these backings are removed just before application.

In the case of gummed tape, to facilitate winding on rolls and to prevent the pleats from opening up in the winding process, one or more narrow lstrips of paper or other material may be affixed 'to the gummed surface. and removed before application or these strips Amay be gummed also and affixed to the tape with the gummed side exposed herein is illustrative only, that my invention is not limited thereto, and that changes and variations in the size, shape and location of elements, etc., may all be resorted to without departing from the spirit of my invention and the scope of my claims. For to others skilled in the art it will appear from my invention and disclosure that many variations and modifications may be made without copying the specific structure shown, therefore, I claim all such variations and modifications insofar as they fall within the reasonable spirit and scope of my appended claims.

I claim: x

1. A binding tape including an elongated strip of material having an adhesive surface and a plain surface, said strip being formed from a plurality of joined sections, each of said sections having opposing convex side edges and-straight end edges, the adjoining end edges of the sections being hingedly connected together and each section being formed with a transverse fold line dis.- posed parallel with and in adjacency to one of its end edges, said sections being folded upon their adhesive surfaces at their fold lines and the folded portions being superimposed on the plain surface of adjacent sections.

2. A binding tape including an elongated strip of material having an adhesive surface and a plain surface, said strip being formed from a plurality of joined sections, each of said sections having opposing convex side edges and straight end edges, the adjoining end edges of the sections strip edges.

3. V A. binding tape including an elongated strip of material having an adhesiversurface and a plain surface, said strip being formed from a plurality of joined sections, each of said sections having opposing convex Side edges and straight end edges, the adjoining end edges of the sections so that the strip and the tape adhere simultane- I have described, provides a stronger seal than` an unpleated tape of the same width because the tensile strength is multiplied proportionately to the number and size of the pleats since multiple layers of tape are applied in one operation, thus avoiding the application of several reinforcing layers in several operations, the cost of labor is materially reduced by the use of my type of tape.

Endless 'variations and modifications in sizes and shapes of my invention may be made to meet various needs, and I herein claim all such variations and modifications insofar as they fall within the reasonable spirit and scope ofrmy claims, although I Vshow only a few examples to disclose ,my invention.

It should, therefore, be understood that the particular embodimentof my invention disclosed being hingedly connected together` and each section being formed with a transverse fold line disposed parallel with and in adjacency to one of its end edges, said sections being folded upon their adhesive surfaces at their fold lines and the folded portions being superimposed onthe plain surface of adjacent sections, the outer surfaces of the folded portions being ush with the plain surfaces of the sections.

OSCAR A. BERMAN.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS ,Number Y Name Date 1,852,040 Blank Apr. 5, 1932 1,978,631 Herrlinger Oct. 30, 1934 2,086,179 Angler July 6, 1937 Y2,124,650 Chesster July 26, 1938 2,156,279 Drew May 2, 1939 2,339,446 Fiegler et al Jan. 18, 1944 2,353,332 Hall July 11, 1944 2,373,634 Wagner Apr. 10, 1945 2,402,982 Steenbergen July 2, 1946

Claims

1. A BINDING TAPE INCLUDING AN ELONGATED STRIP OF MATERIAL HAVING AN ADHESIVE SURFACE AND A PLAIN SURFACE, SAID STRIP BEING FORMED FROM A PLURALITY OF JOINED SECTIONS, EACH OF SAID SECTIONS HAVING OPPOSING CONVEX SIDE EDGES AND STRAIGHT END EDGES, THE ADJOINING END EDGES OF THE SECTIONS BEING HINGEDLY CONNECTED TOGETHER AND EACH SECTION BEING FORMED WITH A TRANSVERSE FOLD LINE DISPOSED PARALLEL WITH AND IN ADJACENCY TO ONE OF ITS END EDGES, SAID SECTIONS BEING FOLDED UPON