Patent US1520912A successfully refreshed from Google Patents.
Patent US5415911A successfully refreshed from Google Patents.
US5415911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoluminescent retroreflective sheeting
Assignee: Avery Dennison Corp
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Filing: 1993-02-09
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Granted: 1995-05-16
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Expires: 2013-02-09
Abstract
Abstract A photoluminescent retroreflective sheeting for use in structures when a power outage occurs. Guidance systems are made from this sheeting to mark exits and escape routes as well as possible hazards and safety devices. The novel sheeting includes photoluminescent properties that glow in the dark as well as retroreflective properties that retroreflect light incident upon the same sheet such that only one sheet has to be used rather than individual sheets with separate properties.
Inventors
- 👤 Daniel E. Zampa
- 👤 Alex A. Szopinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:05
CPC Classifications
B; B32; B32B; B32B38/00; B32B38/06; B32B37/00; B32B37/12; B32B37/14; B32B37/16; B32B37/20; B32B38/14; F; F21; F21K; F21K2/00; G; G02; G02B; G02B5/00; G02B5/12; G02B5/122; G02B5/124; G02B5/126; G02B5/128; G09; G09F; G09F13/00; G09F13/16; G09F13/20; G09F19/00; G09F19/22; B32B2307/00; B32B2307/40; B32B2307/416; G09F2019/225; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/14; Y10T428/1476; Y10T428/28; Y10T428/2848
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
106 words
A phosphorescent retroreflective laminate sheet construction comprising: a transparent film having a front face and a reverse face, and having cube corner retroreflectors formed on the reverse face thereof for retroreflecting light incident on the front face of the film; a phosphorescent film attached to the reverse face of the transparent film in a pre-selected pattern, such that at least parts of the phosphorescent film are spaced from the transparent film to form air cells therebetween, said phosphorescence being visible from the front face of said transparent film; and a white adhesive applied to the phosphorescent film for attaching the laminate Sheet construction to a surface.
Claim 2
Dependent Claim
106 words
A phosphorescent retroreflective laminate sheet construction comprising: a transparent film having a front face and a reverse face, and having cube corner retroreflectors formed on the reverse face thereof for retroreflecting light incident on the front face of the film; a phosphorescent film attached to the reverse face of the transparent film in a pre-selected pattern, such that at least parts of the phosphorescent film are spaced from the transparent film to form air cells therebetween, said phosphorescence being visible from the front face of said transparent film; and a white adhesive applied to the phosphorescent film for attaching the laminate Sheet construction to a surface.
Claim 3
Dependent Claim
24 words
The sheet construction of claim 1, further comprising a release liner attached to the adhesive to prevent inadvertent contact of adhesive with another surface.
Claim 4
Dependent Claim
30 words
The sheet construction of claim 1, wherein the phosphorescent film is attached to the transparent film by a process selected from the group consisting of heat sealing and sonic welding.
Claim 5
Dependent Claim
20 words
The sheet construction of claim 1, wherein the phosphorescent film is from about 0.010 inches to about 0.020 inches thick.
Claim 6
Dependent Claim
146 words
A phosphorescent retroreflective laminate sheet construction comprising: a transparent film having a front face and a reverse face, and having cube corner retroreflectors embossed on the reverse face thereof for retroreflecting light incident on the front face of the film; a phosphorescent film of thickness of from about 0.010 inches to about 0.020 inches, attached by a process selected from the group consisting of heat sealing and sonic welding to the reverse face of the transparent film in a preselected pattern, such that the phosphorescent film is at least partially spaced from the transparent film to form air cells therebetween, said phosphorescence being visible from the front face of said transparent film; a white adhesive applied to the phosphorescent film for attaching the sheet construction to a surface; and, a release liner attached to the adhesive to prevent inadvertent contact of the adhesive with a surface.
Claim 7
Dependent Claim
146 words
A phosphorescent retroreflective laminate sheet construction comprising: a transparent film having a front face and a reverse face, and having cube corner retroreflectors embossed on the reverse face thereof for retroreflecting light incident on the front face of the film; a phosphorescent film of thickness of from about 0.010 inches to about 0.020 inches, attached by a process selected from the group consisting of heat sealing and sonic welding to the reverse face of the transparent film in a preselected pattern, such that the phosphorescent film is at least partially spaced from the transparent film to form air cells therebetween, said phosphorescence being visible from the front face of said transparent film; a white adhesive applied to the phosphorescent film for attaching the sheet construction to a surface; and, a release liner attached to the adhesive to prevent inadvertent contact of the adhesive with a surface.
Claim 8
Dependent Claim
122 words
A phosphorescent retroreflective laminate sheet construction comprising: a transparent film having a front face and a reverse face, and having cube corner retroreflectors formed on the reverse face thereof for retroreflecting light incident on the front face of the film; a second film attached to the reverse face of the transparent film in a pre-selected pattern, such that at least parts of the second film are spaced from the transparent film to form air cells therebetween, the second film comprising a first layer containing a phosphorescent pigment and a second layer that is white, said phosphorescence being visible from the front face of the transparent film; and, an adhesive applied to the second film for attaching the sheet construction to a surface.
Claim 9
Dependent Claim
122 words
A phosphorescent retroreflective laminate sheet construction comprising: a transparent film having a front face and a reverse face, and having cube corner retroreflectors formed on the reverse face thereof for retroreflecting light incident on the front face of the film; a second film attached to the reverse face of the transparent film in a pre-selected pattern, such that at least parts of the second film are spaced from the transparent film to form air cells therebetween, the second film comprising a first layer containing a phosphorescent pigment and a second layer that is white, said phosphorescence being visible from the front face of the transparent film; and, an adhesive applied to the second film for attaching the sheet construction to a surface.
Claim 10
Dependent Claim
25 words
The sheet construction of claim 6 further comprising a release liner attached to the adhesive to prevent inadvertent contact of the adhesive with a surface.
Claim 11
Dependent Claim
30 words
The sheet construction of claim 6, wherein the second film is attached to the transparent film by a process selected from the group consisting of heat sealing and sonic welding.
Claim 12
Dependent Claim
20 words
The sheet construction of claim 6 wherein the second film is from about 0.015 inches to about 0.030 inches thick.
Claim 13
Dependent Claim
163 words
A phosphorescent retroreflective laminate sheet construction comprising: a transparent film having a front face and a reverse face, and having cube corner retroreflectors embossed on the reverse face thereof for retroreflecting light incident on the front face of the film; a flexible thermoplastic film from about 0.015 inches to about 0.030 inches thick attached to the reverse face of the transparent film in a pre-selected pattern by a process selected from the group consisting of heat sealing and sonic welding, such that at least parts of the thermoplastic film are spaced from the transparent film to form air cells therebetween, the thermoplastic film comprising a first layer containing a phosphorescent pigment and a second layer that is white, the phosphorescence being visible from the front face of said transparent film; an adhesive applied to the thermoplastic film for attaching the sheet construction to a surface; and, a release liner attached to the adhesive to prevent inadvertent contact of the adhesive with a surface.
Claim 14
Dependent Claim
163 words
A phosphorescent retroreflective laminate sheet construction comprising: a transparent film having a front face and a reverse face, and having cube corner retroreflectors embossed on the reverse face thereof for retroreflecting light incident on the front face of the film; a flexible thermoplastic film from about 0.015 inches to about 0.030 inches thick attached to the reverse face of the transparent film in a pre-selected pattern by a process selected from the group consisting of heat sealing and sonic welding, such that at least parts of the thermoplastic film are spaced from the transparent film to form air cells therebetween, the thermoplastic film comprising a first layer containing a phosphorescent pigment and a second layer that is white, the phosphorescence being visible from the front face of said transparent film; an adhesive applied to the thermoplastic film for attaching the sheet construction to a surface; and, a release liner attached to the adhesive to prevent inadvertent contact of the adhesive with a surface.
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USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 1998-05-15 | 1998-11-14 | 1999-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-15 | 2002-11-14 | 2003-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-15 | 2006-11-14 | 2007-05-16 | $7700.00 | Window Closed / Lapsed |