US20050181690A1 - Strength loss indicator for synthetic yarns - Google Patents

Strength loss indicator for synthetic yarns Download PDF

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Publication number
US20050181690A1
US20050181690A1 US10/778,414 US77841404A US2005181690A1 US 20050181690 A1 US20050181690 A1 US 20050181690A1 US 77841404 A US77841404 A US 77841404A US 2005181690 A1 US2005181690 A1 US 2005181690A1
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US
United States
Prior art keywords
webbing
strip
phosphorescent
yarns
ultraviolet light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/778,414
Inventor
John Pedigo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southern Weaving Co
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US10/778,414 priority Critical patent/US20050181690A1/en
Assigned to SOUTHERN WEAVING COMPANY reassignment SOUTHERN WEAVING COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PEDIGO, JOHN A., JR.
Publication of US20050181690A1 publication Critical patent/US20050181690A1/en
Priority to US11/983,660 priority patent/US7939128B2/en
Assigned to ORIX FINANCE CORP. reassignment ORIX FINANCE CORP. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ETG HOLDINGS, INC., SOUTHERN WEAVING COMPANY
Abandoned legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
    • D02G3/346—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns with coloured effects, i.e. by differential dyeing process
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D02G3/404—Yarns or threads coated with polymeric solutions
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/54—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads coloured
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/04—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons
    • D10B2321/041—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons polyvinyl chloride or polyvinylidene chloride
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/12—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of cyclic compounds with one carbon-to-carbon double bond in the side chain
    • D10B2321/121—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of cyclic compounds with one carbon-to-carbon double bond in the side chain polystyrene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/04—Heat-responsive characteristics
    • D10B2401/041—Heat-responsive characteristics thermoplastic; thermosetting
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer

Abstract

A webbing formed of synthetic yarns having an indicator for indicating exposure to ultraviolet light which results in strength loss of said synthetic yarns. The strength loss indicator comprises a strip extending along at least a portion of the webbing. The strip includes a phosphorescent material that produces a glow when exposed to ultraviolet light. The phosphorescent material is adapted to lose its ability to produce a glow over time exposure to ultraviolet light. Advantageously, the ability to glow fades at a rate correlated to the rate of loss of tensile strength of said synthetic yarns due to ultraviolet light exposure to indicate the condition of the webbing.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a webbing formed of synthetic yarns having an indicator for measuring exposure to ultraviolet light which results in strength loss of the synthetic yarns, and more particularly, to a phosphorescent strip included in the webbing that glows when exposed to ultraviolet light, and wherein the phosphorescent material loses its ability to produce a glow over time exposure to ultraviolet light, which is correlated to the rate of loss of tensile strength of the synthetic yarns due to ultraviolet light exposure to indicate the condition of the webbing.
    • BACKGROUND OF THE INVENTION
  • The prior art is replete with various inventions directed to the methods of providing phosphorescent textile fibers and used therefore. However, none of these inventions are directed to a phosphorescent indicator in which the luminescent properties decay at a predetermined rate corresponding to the ware of the product. Notably, many synthetic yarns are subject to molecular breakdown in the presence of ultraviolet light. The longer the exposure, the greater the loss of tensile strength in the synthetic yarns, such as nylon. Nothing in the prior art uses a phosphorescent indicator to correlate the exposure of synthetic yarns to ultraviolet light with the loss of tensile strength in the synthetic yarns as a result of the ultraviolet light exposure.
  • Accordingly, it is an object of the present invention to provide a phosphorescent indicator for webbings made of synthetic yarns which measure time exposure to ultraviolet light.
  • It is another object of the present invention to provide such a phosphorescent indicator for webbings in which the luminescent property of the indicator decay at a predetermined rate as a result of time exposure to ultraviolet light which is correlated to the molecular breakdown of the synthetic yarns to indicate the condition of the webbing.
    • SUMMARY OF THE INVENTION
  • The above objectives are accomplished according to the present invention by providing a webbing formed of synthetic yarns having an indicator for indicating exposure to ultraviolet light which results in strength loss of said synthetic yarns. In a preferred embodiment, the strength loss indicator comprises a strip extending along at least a portion of the webbing. The strip includes a phosphorescent material that produces a glow when exposed to ultraviolet light. The phosphorescent material looses its ability to produce a glow over time exposure to ultraviolet light. Advantageously, the ability to glow fades at a rate which may be correlated to the rate of loss of tensile strength of said synthetic yarns also due to ultraviolet light exposure to indicate the condition of the webbing.
  • Preferably, the webbing comprises fabrics which are one of woven, knitted, and non-woven. The fabrics are formed of synthetic yarns made of a thermoplastic polymer. In a preferred embodiment, the webbing comprises one of a safety harness, a tie-down, and a sling web. Other fabrics for other uses may also find the strength loss indicator useful.
  • Preferably, the strip comprises at least one synthetic yarn which includes phosphorescent material which is incorporated with the webbing. In a preferred embodiment, the strip includes a polyester yarn coated with the phosphorescent material. Alternatively, the strip may comprise a coating including the phosphorescent material applied to at least one surface of the webbing or the phosphorescent material may be incorporated in the synthetic material forming the yarn.
  • Preferably, the phosphorescent material includes a luminescent phosphor to provide the luminescent glow of the strip.
    • DESCRIPTION OF THE DRAWINGS
  • The construction designed to carry out the invention will hereinafter be described, together with other features thereof. The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawings forming a part thereof, wherein an example of the invention is shown and wherein:
  • FIG. 1, the only figure, is a cutaway perspective view of a webbing according to the invention.
    • DESCRIPTION OF A PREFERRED EMBODIMENT
  • With reference to the drawing, the invention will now be described in more detail. FIG. 1 shows a section of webbing, designated generally as A, woven of synthetic yarns. It is to be understood that the webbing could be knitted or a non-woven. As shown, the webbing is a single layer fabric, however, multi-layer webbings also find utility with the indicator of the invention.
  • By way of example, the webbing is of the type commonly used to produce items such as a safety harness, a tie-down, and a sling web. It is well known that exposure to ultraviolet light causes significant breakdowns between the molecular bonds in the majority of commonly used synthetic yarns, such as nylon, polyester and Kevlar. Previously, there was no true way of measuring the ultraviolet damage or breakdown on webbings made of such materials. This can result in the dangerous overuse of products and particularly such products as industrial fabrics which may have lost the ability to support the original and intended loads due to exposure to ultraviolet light.
  • The present invention solves this problem by incorporating a strength loss indicator with webbing A for indicating the time of exposure to ultraviolet light which results in strength loss of the synthetic yarns. In a preferred embodiment, the strength loss indicator comprises a strip extending along the length of the webbing. The strip may comprise a single or a plurality of longitudinally extending yarns which include a phosphorescent material which produces a glow when exposed to ultraviolet light. The strip may be arranged along the fabric edge and comprise a single yarn at 16 or the single strip forming yarn may be arranged located in the body of the fabric as shown at 10. Alternatively, the strip may comprise a plurality of yarns as indicated at 12 or there may be a plurality of strips such as at 12 and 14.
  • Preferably, the phosphorescent material includes a luminescent phosphor, well known to those skilled in the art, which provides the luminescent glow of the strip. The phosphorescent material looses its ability to produce a glow over time exposure to ultraviolet light. Advantageously, this ability to glow fades at a rate which can be correlated to the rate of tensile strength loss of synthetic yarns also due to ultraviolet light exposure. In other words, the ability of the phosphorescent material of the strip to maintain its ability to glow after ultraviolet light exposure (also known as afterglow) decays due to exposure to ultraviolet light, at a pre-determined rate, which is in turn correlated to the degree of loss of tensile strength of the synthetic yarns due to ultraviolet light exposure. Accordingly, when the phosphorescent material of the strip no longer has the ability to maintain a glow due to ultraviolet light exposure, a predetermined loss of tensile strength of the synthetic yarns for the given exposure has also occurred. Accordingly, appropriate action can be taken to replace the deteriorated webbing with new webbing.
  • For example, a strip including the phosphorescent material can be incorporated into the webbing of a safety strap made of nylon. After approximately 2000 xion hours of ultraviolet light exposure, the tensile strength of the nylon and consequently the webbing will be reduced by approximately 40%. At this point the strap is considered no longer safe for use. The phosphorescent material incorporated in the strip in this particular embodiment is manufactured to maintain its glowing ability for approximately 2000 xion hours, which corresponds with a loss of tensile strength of the nylon webbing of about approximately 40%. The properties of the phosphorescent material in the strip described above can be adjusted and varied accordingly to indicate any desired amount of ultraviolet light exposure for a given percentage of tensile strength loss for any specific synthetic yarn or combination of synthetic yarns. It is known to those skilled in the art to produce such phosphorescent materials to maintain an afterglow for a given and variable time period or exposure to ultraviolet light. One such company capable of producing phosphorescent materials with the desired characteristics necessary to practice the present invention is Fiber-Line, Inc., 3050 Campus Drive, Hatfield, Pa. 19440.
  • Preferably, the strip is formed of at least one synthetic yarn which includes the phosphorescent material and is incorporated along with the other synthetic yarns during formation of the webbing. As earlier described, a strip, as indicated by reference number 10, may comprise a single polyester yarn coated with the phosphorescent material which is woven into the webbing. A strip as indicated at 10, 12, 14 or 16 may be formed by simply applying a coating of the phosphorescent material on to the webbing after the manufacturing process.
  • As earlier stated, the webbing is formed by one of woven, knitted, and non-woven synthetic yarns made of a thermoplastic polymer in which the tensile strength degrades when exposed to ultraviolet light. The webbing may be formed in a single layer or in multi-layers depending upon the desired use and strength requirements. Examples of synthetic thermoplastic polymers likely to be used in form the webbing include polyamides, polyesters, polypropylene, polyethylene, polyacrylates, polycarbonates, polycyanoethylenes, polyacrylonitrides, polyvinyl chloride, polymethacrylics, polystyrene, polyurethane, acrylate resins, halogenated polymers, and mixtures and blends thereof. The composition of the phosphorescent material of the strip is adapted to the specific chemistry for the specific thermoplastic polymer used to form the webbing. Thus, the afterglow decay rate of the phosphorescent material is adjusted to correspond to the molecular breakdown of the thermoplastic polymer from ultraviolet light exposure to indicate a known tensile strength for a given time of ultraviolet light exposure when the phosphorescent material no longer glows.
  • While a preferred embodiment of the invention has been described using specific terms, such description is for illustrative purposes only, and it is to be understood that changes and variations may be made without departing from the spirit or scope of the following claims.

Claims (12)

1. A webbing formed of synthetic yarns which lose strength due to exposure to ultraviolet light, said webbing including an indicator comprising:
a strip extending along at least a portion of said webbing;
said strip including phosphorescent material which produces a glow when exposed to ultraviolet light, said phosphorescent material losing its ability to produce a glow over time exposure to said ultraviolet light; whereby,
said loss of glow of said strip is correlated with a pre-determined loss of strength of said synthetic yarns.
2. The webbing of claim 1 wherein said webbing comprises one of woven, knitted, and non-woven synthetic yarns.
3. The webbing of claim 1 wherein said synthetic yarns are comprised of a thermoplastic polymer.
4. The webbing of claim 3 wherein said thermoplastic polymer is selected from the group consisting of polyamides, polyesters, polypropylene, polyethylene, polyacrylates, polycarbonates, polycyanoethylenes, polyacrylonitrides, polyvinyl chloride, polymethacrylics, polystyrene, polyurethane, acrylate resins, halogenated polymers, and mixtures and blends thereof.
5. The webbing of claim 1 wherein said webbing comprises one of a safety harness, a tie-down, and a sling web.
6. The webbing of claim 1 wherein said strip comprises at least one synthetic yarn which includes said phosphorescent material.
7. The webbing of claim 1 wherein said strip includes at least one polyester yarn coated with said phosphorescent material.
8. The webbing of claim 1 wherein said strip comprises a coating including said phosphorescent material on to at least one surface said webbing.
9. The webbing of claim 1 wherein said phosphorescent material includes a luminescent phosphor.
10. A method of forming a webbing formed of synthetic yarns which incur strength loss over time due to exposure to ultraviolet rays with an indicator for determining the degree of said strength of said yarns over time, said method comprising:
fabricating said synthetic yarns into said webbing;
providing a phosphorescent which interacts for a selected time with ultraviolet rays to produce a glow;
correlating said selected time of said phosphorescent with said strength loss time of said yarns and incorporating said phosphorescent with said webbing in the form of a strip; whereby,
diminished glow of said phosphorescent containing strip represents diminished strength of said yarns.
11. The method of claim 10 providing said strip comprise at least one length wise yarn of said yarns coated with said phosphorescent.
12. The method of claim 10 providing said strip comprise a phosphorescent coating along at least one surface of said webbing.
US10/778,414 2004-02-16 2004-02-16 Strength loss indicator for synthetic yarns Abandoned US20050181690A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/778,414 US20050181690A1 (en) 2004-02-16 2004-02-16 Strength loss indicator for synthetic yarns
US11/983,660 US7939128B2 (en) 2004-02-16 2007-11-13 Strength loss indicator for synthetic yarns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/778,414 US20050181690A1 (en) 2004-02-16 2004-02-16 Strength loss indicator for synthetic yarns

Related Child Applications (1)

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US11/983,660 Continuation US7939128B2 (en) 2004-02-16 2007-11-13 Strength loss indicator for synthetic yarns

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US11/983,660 Expired - Fee Related US7939128B2 (en) 2004-02-16 2007-11-13 Strength loss indicator for synthetic yarns

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190257008A1 (en) * 2018-02-18 2019-08-22 Chris Little Warning indicator used for tie down straps-slings-slings
US20190390379A1 (en) * 2018-06-26 2019-12-26 GM Global Technology Operations LLC Methods for forming composite articles from non-crimp fabrics

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1822098A (en) * 1927-06-02 1931-09-08 Plymouth Cordage Co Marking device
US3839637A (en) * 1972-03-22 1974-10-01 A Willis Textile guiding and measuring indicia
US4941710A (en) * 1987-04-28 1990-07-17 Messerschmitt-Boelkow-Blohm Gmbh Device for permanently indicating an overstretching of a safety seat belt, especially in an aircraft
US4958853A (en) * 1989-01-24 1990-09-25 Gateway Industries, Inc. Safety belt with high load indicator
US5605734A (en) * 1989-11-02 1997-02-25 Basf Corporation Phosphorescent directional signals and manufacturing method
US5674437A (en) * 1996-02-28 1997-10-07 Glotex Corporation Method of providing luminescence to fibrous materials
US5914076A (en) * 1997-10-10 1999-06-22 The Glo-Tech Corporation Process for producing longer-lasting, high luminescence, phosphorescent textile fibers
US5990485A (en) * 1996-11-25 1999-11-23 Agfa-Gevaert, N.V. Label for certifying an inspection by penetrating radiation
US6211526B1 (en) * 1998-09-30 2001-04-03 The United States Of America As Represented By The Secretary Of The Navy Marking of materials using luminescent and optically stimulable glasses
US6307207B1 (en) * 1999-12-22 2001-10-23 Astronics Corporation Photoluminescent emergency egress pathway marking system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD990284A1 (en) * 1999-12-10 2001-06-11 Simone Bruson SAFETY BELT PERFECTED FOR VEHICLES

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1822098A (en) * 1927-06-02 1931-09-08 Plymouth Cordage Co Marking device
US3839637A (en) * 1972-03-22 1974-10-01 A Willis Textile guiding and measuring indicia
US4941710A (en) * 1987-04-28 1990-07-17 Messerschmitt-Boelkow-Blohm Gmbh Device for permanently indicating an overstretching of a safety seat belt, especially in an aircraft
US4958853A (en) * 1989-01-24 1990-09-25 Gateway Industries, Inc. Safety belt with high load indicator
US5605734A (en) * 1989-11-02 1997-02-25 Basf Corporation Phosphorescent directional signals and manufacturing method
US5674437A (en) * 1996-02-28 1997-10-07 Glotex Corporation Method of providing luminescence to fibrous materials
US5990485A (en) * 1996-11-25 1999-11-23 Agfa-Gevaert, N.V. Label for certifying an inspection by penetrating radiation
US5914076A (en) * 1997-10-10 1999-06-22 The Glo-Tech Corporation Process for producing longer-lasting, high luminescence, phosphorescent textile fibers
US6211526B1 (en) * 1998-09-30 2001-04-03 The United States Of America As Represented By The Secretary Of The Navy Marking of materials using luminescent and optically stimulable glasses
US6307207B1 (en) * 1999-12-22 2001-10-23 Astronics Corporation Photoluminescent emergency egress pathway marking system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190257008A1 (en) * 2018-02-18 2019-08-22 Chris Little Warning indicator used for tie down straps-slings-slings
US20190390379A1 (en) * 2018-06-26 2019-12-26 GM Global Technology Operations LLC Methods for forming composite articles from non-crimp fabrics
US11111610B2 (en) * 2018-06-26 2021-09-07 GM Global Technology Operations LLC Methods for forming composite articles from non-crimp fabrics

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US20080060179A1 (en) 2008-03-13
US7939128B2 (en) 2011-05-10

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Owner name: SOUTHERN WEAVING COMPANY, SOUTH CAROLINA

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