Patent US4472479A successfully refreshed from Google Patents.
US4472479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light barrier fluorescent ribbon
Assignee: Recognition Equipment Inc
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Filing: 1983-06-22
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Granted: 1984-09-18
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Expires: 2003-06-22
Abstract
Abstract A barrier pigment is added to a fluorescent ribbon to prevent light from being absorbed into the media upon which the pigment is applied during printing. The barrier pigment is added to the fluorescent layer or is applied over the fluorescent layer as an additional layer.
Inventors
- 👤 Larry J. Hayes
- 👤 Keith L. Reddick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:05
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/10; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24876; Y10T428/24893; Y10T428/24901; Y10T428/24909; Y10T428/25; Y10T428/256; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
88 words
An improved fluorescent printing ribbon wherein a transparent fluorescent material forms a layer comprising dyes and one of a wax and a polyester resin and is applied to a ribbon base, the improvement comprising a barrier material of reflective particles included with said layer comprising finely divided material which (a) has a metallic color, (b) is reflective, (c) does not shift the wavelength of fluorescent light and (d) blocks absorption of incident light into the media upon which the fluorescent layer and barrier material are transferred during printing.
Claim 2
Dependent Claim
88 words
An improved fluorescent printing ribbon wherein a transparent fluorescent material forms a layer comprising dyes and one of a wax and a polyester resin and is applied to a ribbon base, the improvement comprising a barrier material of reflective particles included with said layer comprising finely divided material which (a) has a metallic color, (b) is reflective, (c) does not shift the wavelength of fluorescent light and (d) blocks absorption of incident light into the media upon which the fluorescent layer and barrier material are transferred during printing.
Claim 3
Dependent Claim
15 words
The ribbon according to claim 1 wherein the barrier material comprises opaque reflective metallic particles.
Claim 4
Dependent Claim
16 words
The ribbon according to claim 1 wherein the barrier material is supported in a wax base.
Claim 5
Dependent Claim
74 words
An improved flourescent printing ribbon having a ribbon base and a transferable transparent fluorescent layer thereon formed from fluorescent dyes and one of a wax and a polyester resin, the improvement comprising a barrier material comprising finely divided metals or materials with metallic colors which are reflective and do not shift the wavelength of fluorescent light, said barrier material being incorporated into the fluorescent layer to increase the light opacity of the fluorescent layer.
Claim 6
Dependent Claim
74 words
An improved flourescent printing ribbon having a ribbon base and a transferable transparent fluorescent layer thereon formed from fluorescent dyes and one of a wax and a polyester resin, the improvement comprising a barrier material comprising finely divided metals or materials with metallic colors which are reflective and do not shift the wavelength of fluorescent light, said barrier material being incorporated into the fluorescent layer to increase the light opacity of the fluorescent layer.
Claim 7
Dependent Claim
57 words
A fluorescent printing ribbon comprising a ribbon base, a transferable transparent fluorescent layer of a mixture of wax and fluorescent dye material on said ribbon base and a transferable barrier layer on said fluorescent layer, said barrier layer comprising finely divided materials with metallic colors which are reflective and do not shift the wavelength of fluorescent light.
Claim 8
Dependent Claim
57 words
A fluorescent printing ribbon comprising a ribbon base, a transferable transparent fluorescent layer of a mixture of wax and fluorescent dye material on said ribbon base and a transferable barrier layer on said fluorescent layer, said barrier layer comprising finely divided materials with metallic colors which are reflective and do not shift the wavelength of fluorescent light.
Claim 9
Dependent Claim
18 words
The ribbon according to claim 5 wherein the barrier layer comprises said particles suspended in a wax base.
Claim 10
Dependent Claim
28 words
The ribbon according to claim 5 wherein the barrier particles are selected from the group including the colors of gold, bronze, copper, silver and shades of these colors.
Claim 11
Dependent Claim
30 words
The ribbon according to claim 5 wherein the barrier particles in the barrier layer are nacreous pigments consisting of mica platelets coated with one of titanium dioxide and iron oxide.
Claim 12
Dependent Claim
13 words
The ribbon according to claim 5 wherein the reflective material is aluminum powder.
Claim 13
Dependent Claim
83 words
An improved fluorescent printing ribbon wherein a transparent fluorescent material comprising fluorescent dyes is applied to a ribbon base, the improvement comprising a barrier layer of finely divided particles forming an additional layer over the fluorescent material to block absorption of incident light into the media upon which the fluorescent material and the barrier layer are transferred during printing, the barrier layer comprising finely divided particles which are (a) metallic in color, reflective and (c) do not shift the wavelength of fluorescent light.
Claim 14
Dependent Claim
83 words
An improved fluorescent printing ribbon wherein a transparent fluorescent material comprising fluorescent dyes is applied to a ribbon base, the improvement comprising a barrier layer of finely divided particles forming an additional layer over the fluorescent material to block absorption of incident light into the media upon which the fluorescent material and the barrier layer are transferred during printing, the barrier layer comprising finely divided particles which are (a) metallic in color, reflective and (c) do not shift the wavelength of fluorescent light.
Claim 15
Independent Claim
76 words
A method of making a barrier coated fluorescent printing ribbon comprising the steps of adhering a transferable transparent fluorescent layer comprising dyes and one of a wax and a polyester resin to a ribbon base and coating said fluorescent layer with a transferable barrier layer of material opaque to light, the transferable barrier layer comprising finely divided particles which are (a) metallic in color, (b) reflective, and (c) do not shift the wavelength of fluorescent light.
Claim 16
Independent Claim
76 words
A method of making a barrier coated fluorescent printing ribbon comprising the steps of adhering a transferable transparent fluorescent layer comprising dyes and one of a wax and a polyester resin to a ribbon base and coating said fluorescent layer with a transferable barrier layer of material opaque to light, the transferable barrier layer comprising finely divided particles which are (a) metallic in color, (b) reflective, and (c) do not shift the wavelength of fluorescent light.
Claim 17
Dependent Claim
21 words
The method according to claim 11 wherein the barrier layer consists of an opaque reflective material suspended in a medium material.
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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) | 1987-09-18 | 1988-03-19 | 1988-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-18 | 1992-03-19 | 1992-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-18 | 1996-03-19 | 1996-09-18 | $7700.00 | Window Closed / Lapsed |