US5237448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visibility enhancing material
Assignee: Cyalume Technologies Inc
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Filing: 1992-05-26
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Granted: 1993-08-17
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Expires: 2012-05-26
Abstract
Abstract Flexible visibility enhancing material combines the advantages of a light reflective component and a luminescent component. The material includes a first layer of prismatic light reflective plastic material having an underlying surface formed with a plurality of minute prism-like formations projecting therefrom at regular spaced intervals and an overlying substantially smooth light transmissive surface. A second layer of plastic luminescent material is contiguously and integrally attached to the underlying surface of prism-like formations and generally coextensive therewith. The visibility enhancing material simultaneously radiates luminescent light from the second layer through the underlying surface of prism-like formations and through the smooth light transmissive surface and reflected light from the prism-like formations through the smooth light transmissive surface. In one embodiment, a leash for controlling and restraining a pet animal includes a flexible elongate member comprised of the visibility enhanced material.
Inventors
- 👤 Andrew B. Spencer
- 👤 Clifford S. Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:54
CPC Classifications
A; A01; A01K; A01K27/00; A01K27/006; F; F21; F21K; F21K2/00; G; G02; G02B; G02B5/00; G02B5/12; G02B5/122; G02B5/124; H; H05; H05B; H05B33/00; H05B33/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
107 words
Flexible visibility enhancing material comprising: a first layer of prismatic light reflective sheet material having an underlying surface formed with a plurality of minute prism-like formations projecting therefrom at regular spaced intervals and an overlying substantially smooth light transmissive surface; and a second layer of phosphorescent sheet material contiguously and integrally attached to said underlying surface of prism-like formations and generally coextensive therewith: whereby said visibility enhancing material simultaneously radiates phosphorescent light from said second layer through said underlying surface of prism-like formations and through said smooth light transmissive surface and reflected light from said prism-like formations through said smooth light transmissive surface of said first layer.
Claim 2
Dependent Claim
107 words
Flexible visibility enhancing material comprising: a first layer of prismatic light reflective sheet material having an underlying surface formed with a plurality of minute prism-like formations projecting therefrom at regular spaced intervals and an overlying substantially smooth light transmissive surface; and a second layer of phosphorescent sheet material contiguously and integrally attached to said underlying surface of prism-like formations and generally coextensive therewith: whereby said visibility enhancing material simultaneously radiates phosphorescent light from said second layer through said underlying surface of prism-like formations and through said smooth light transmissive surface and reflected light from said prism-like formations through said smooth light transmissive surface of said first layer.
Claim 3
Dependent Claim
30 words
Flexible visibility enhancing material as set forth in claim 1 including: a layer of pressure sensitive adhesive material adherent to a surface of said second layer opposite said first layer.
Claim 4
Dependent Claim
41 words
Flexible visibility enhancing material as set forth in claim 2 including: a sheet of backing material protectively adhered to said layer of adhesive material and selectively removable therefrom to enable said visibility enhancing material to be attached to a supporting structure.
Claim 5
Dependent Claim
20 words
Flexible visibility enhancing material as set forth in claim 1 wherein said first and second layers are composed of vinyl.
Claim 6
Dependent Claim
23 words
Flexible visibility enhancing material as set forth in claim 4 wherein said second layer is bonded to said first layer by heat sealing.
Claim 7
Dependent Claim
150 words
A visibility enhanced leash for controlling and restraining a pet animal comprising: a flexible elongate member extending between proximal and distal ends including handle means at said proximal end and attachment means at said distal end for releasably connecting said elongate member to the pet animal, said elongate ember including: a first layer of prismatic light reflective sheet material having an underlying surface formed with a plurality of minute prism-like formations projecting therefrom at regular spaced intervals and an overlying substantially smooth light transmissive surface; and a second layer of phosphorescent sheet material continguously and integrally attached to said underlying surface of prism-like formations and generally coextensive therewith; whereby said leash simultaneously radiates phosphorescent light from said second layer through said underlying surface of prism-like formations and through said smooth light transmissive surface and reflected light from said prism-like formations through said smooth light transmissive surface of said first layer.
Claim 8
Dependent Claim
150 words
A visibility enhanced leash for controlling and restraining a pet animal comprising: a flexible elongate member extending between proximal and distal ends including handle means at said proximal end and attachment means at said distal end for releasably connecting said elongate member to the pet animal, said elongate ember including: a first layer of prismatic light reflective sheet material having an underlying surface formed with a plurality of minute prism-like formations projecting therefrom at regular spaced intervals and an overlying substantially smooth light transmissive surface; and a second layer of phosphorescent sheet material continguously and integrally attached to said underlying surface of prism-like formations and generally coextensive therewith; whereby said leash simultaneously radiates phosphorescent light from said second layer through said underlying surface of prism-like formations and through said smooth light transmissive surface and reflected light from said prism-like formations through said smooth light transmissive surface of said first layer.
Claim 9
Dependent Claim
20 words
A visibility enhanced leash as set forth in claim 6 wherein said first and second layers are composed of vinyl.
Claim 10
Dependent Claim
22 words
A visibility enhanced leash as set forth in claim 7 wherein said first and second layers are bonded together by heat sealing.
Claim 11
Independent Claim
118 words
A method of making flexible visibility enhancing material comprising the steps of: providing a first layer of prismatic light reflective sheet material having an underlying surface formed with a plurality of minute prism-like formations projecting therefrom at regular spaced intervals and an overlying substantially smooth light transmissive surface; and contiguously and integrally attaching to the underlying surface of prism-like formations and generally coextensive therewith a second layer of phosphorescent sheet material; whereby the visibility enhancing material enables simultaneous radiation of phosphorescent light from the second layer through the underlying surface of prism-like formations and through the smooth light transmissive surface and of reflected light from the prism-like formations through the smooth light transmissive surface of the first layer.
Claim 12
Independent Claim
118 words
A method of making flexible visibility enhancing material comprising the steps of: providing a first layer of prismatic light reflective sheet material having an underlying surface formed with a plurality of minute prism-like formations projecting therefrom at regular spaced intervals and an overlying substantially smooth light transmissive surface; and contiguously and integrally attaching to the underlying surface of prism-like formations and generally coextensive therewith a second layer of phosphorescent sheet material; whereby the visibility enhancing material enables simultaneous radiation of phosphorescent light from the second layer through the underlying surface of prism-like formations and through the smooth light transmissive surface and of reflected light from the prism-like formations through the smooth light transmissive surface of the first layer.
Claim 13
Dependent Claim
32 words
A method as set forth in claim 9 including the step of applying a layer of pressure sensitive adhesive material adherent to a surface of the second layer opposite the first layer.
Claim 14
Dependent Claim
47 words
A method as set forth in claim 10 including the step of applying a sheet of backing material so as to be protectivley adhered to the layer of adhesive material and selectively removable therefrom to enable the visibility enhancing material to be attached to a supporting structure.
Claim 15
Dependent Claim
18 words
A method as set forth in claim 10 wherein the first and second layers are composed of vinyl.
Claim 16
Dependent Claim
20 words
A method as set forth in claim 12 wherein the first and second layers are bonded together by heat sealing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-16 | 1997-02-15 | 1997-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-16 | 2001-02-15 | 2001-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-16 | 2005-02-15 | 2005-08-17 | $7700.00 | Window Closed / Lapsed |