Patent US4865420A successfully refreshed from Google Patents.
US4865420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wood for video screen
Assignee: Individual
•
Filing: 1987-12-23
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Granted: 1989-09-12
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Expires: 2007-12-23
Abstract
Abstract A hood (10) for a video screen (12) is disclosed as comprising an elongated peripheral enclosure (16) having a mounting end (18) and a viewing end (20). The peripheral enclosure (16) includes first and second sets of opposed walls (22,24) defining an enclosed passage extending between the mounting and viewing ends (18,20). A flange (28) is mounted on the mounting end (18) of the peripheral enclosure (16) to envelope the enclosure about the video screen (12). A fastener (26) attaches the mounting end (18) to the video screen (12) with a central viewing axis X of the peripheral enclosure extending at an acute angle A in the range of about 55 degrees to 75 degrees with respect to the video screen. Peripheral enclosure (16) has a sufficient length between the mounting and viewing ends (18,20) to obstruct light rays entering the peripheral enclosure from striking the video screen (12) perpendicularly. A seal (30) as mounted at the mounting end (18 ) to prohibit outside light fron entering between the mounting end and the video screen (12) to provide reduced glare viewing of the screen as viewed through the viewing end (20) of the peripheral enclosure (16).
Inventors
- 👤 Michael R. Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:43
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/028; G02B5/00; G02B5/005; H; H04; H04N; H04N5/00; H04N5/64; H04N5/65
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
143 words
A hood for a video screen comprising: an elongated peripheral enclosure having a mounting end and a viewing end; said peripheral enclosure including first and second sets of opposed walls defining an enclosed passage extending between the mounting and viewing ends; said peripheral enclosure including a central viewing axis that extends at an acute angle generally in the range of about 55° to 75° to the plane of the video screen; said central viewing axis being defined as a line of sight generally extending through the center of said peripheral enclosure at equal distances between said first and second set of opposed walls along said viewing axis; and a fastener for attaching the mounting end of the peripheral enclosure about the video screen to provide reduced-glare viewing of the screen as the screen is viewed through the viewing end of the peripheral enclosure.
Claim 2
Dependent Claim
143 words
A hood for a video screen comprising: an elongated peripheral enclosure having a mounting end and a viewing end; said peripheral enclosure including first and second sets of opposed walls defining an enclosed passage extending between the mounting and viewing ends; said peripheral enclosure including a central viewing axis that extends at an acute angle generally in the range of about 55° to 75° to the plane of the video screen; said central viewing axis being defined as a line of sight generally extending through the center of said peripheral enclosure at equal distances between said first and second set of opposed walls along said viewing axis; and a fastener for attaching the mounting end of the peripheral enclosure about the video screen to provide reduced-glare viewing of the screen as the screen is viewed through the viewing end of the peripheral enclosure.
Claim 3
Dependent Claim
20 words
A hood as in claim 1 wherein said first and second set of walls generally define a rectangular cross section.
Claim 4
Dependent Claim
24 words
A hood as in claim 1 wherein said peripheral enclosure has a cross section that generally corresponds to the shape of the video screen.
Claim 5
Dependent Claim
16 words
A hood as in claim 3 wherein said peripheral enclosure is generally of a tapered shape.
Claim 6
Dependent Claim
23 words
A hood as in claim 4 wherein said taper provides for decreasing cross section area from the viewing end to the mounting end.
Claim 7
Dependent Claim
24 words
A hood as in claim 4 wherein said hood taper provides for decreasing cross section area from the mounting end to the viewing end.
Claim 8
Dependent Claim
27 words
A hood as in claim 4 wherein the mounting end includes a flange of the corresponding peripheral enclosure shape to envelope the enclosure about the video screen.
Claim 9
Dependent Claim
26 words
A hood as in claim 7 wherein the flange includes a seal to prohibit outside light from entering between the mounting end and the video screen.
Claim 10
Dependent Claim
15 words
A hood as in claim 8 wherein the seal is made of a compressible material.
Claim 11
Dependent Claim
21 words
A hood as in claim 9 wherein the fastener includes a strap for attaching the peripheral enclosure to the video screen.
Claim 12
Dependent Claim
18 words
A hood as in claim 9 wherein the strap is an elastic fastening strip attached to the flange.
Claim 13
Dependent Claim
18 words
A hood as in claim 10 wherein the strap is a VELCRO® fastening strip attached to the flange.
Claim 14
Dependent Claim
14 words
A hood as in claim 1 wherein the acute angle A is about 65°.
Claim 15
Dependent Claim
39 words
A hood as in claim 1 wherein the peripheral enclosure has a length L between the mounting end and the viewing end of sufficient length to obstruct light rays entering the peripheral enclosure from striking the video screen perpendicularly.
Claim 16
Dependent Claim
25 words
A hood as in claim 14 wherein the peripheral enclosure has a length L between the mounting and viewing ends of at least H/cosine A.
Claim 17
Dependent Claim
19 words
A hood as in claim 15 wherein the peripheral enclosure has an inside surface of a light absorbing color.
Claim 18
Dependent Claim
178 words
A hood for a video screen comprising: an elongated peripheral enclosure having a mounting end and a viewing end; said peripheral enclosure including first and second sets of opposed walls defining an enclosed passage of a tapered shape extending between the mounting and viewing ends; said peripheral enclosure having a cross sectional shape that corresponds to the shape of the video screen; said peripheral enclosure also having a central viewing axis; a fastener for attaching the mounting end of the peripheral enclosure to the video screen with the central viewing axis extending at an acute angle in the range of about 55° to 75° with respect to the video screen; the peripheral enclosure having a sufficient length between the mounting and viewing ends to obstruct light rays entering the peripheral enclosure from striking the video screen perpendicularly; and a seal at the mounting end to prohibit outside light from entering between the mounting end and the video screen to provide reduced-glare viewing of the screen as the screen is viewed through the viewing end of the peripheral enclosure.
Claim 19
Dependent Claim
178 words
A hood for a video screen comprising: an elongated peripheral enclosure having a mounting end and a viewing end; said peripheral enclosure including first and second sets of opposed walls defining an enclosed passage of a tapered shape extending between the mounting and viewing ends; said peripheral enclosure having a cross sectional shape that corresponds to the shape of the video screen; said peripheral enclosure also having a central viewing axis; a fastener for attaching the mounting end of the peripheral enclosure to the video screen with the central viewing axis extending at an acute angle in the range of about 55° to 75° with respect to the video screen; the peripheral enclosure having a sufficient length between the mounting and viewing ends to obstruct light rays entering the peripheral enclosure from striking the video screen perpendicularly; and a seal at the mounting end to prohibit outside light from entering between the mounting end and the video screen to provide reduced-glare viewing of the screen as the screen is viewed through the viewing end of the peripheral enclosure.
Claim 20
Dependent Claim
207 words
A hood for a video screen comprising: an elongated peripheral enclosure having a mounting end and a viewing end; said peripheral enclosure including first and second sets of opposed walls defining an enclosed passage of a tapered shape extending between the mounting and viewing ends; said taper providing decreasing cross section from the viewing end to the mounting end; said peripheral enclosure also having a central viewing axis; a flange on the mounting end of the peripheral enclosure to envelope the peripheral enclosure about the video screen; a VELCRO® fastener for attaching the peripheral enclosure to the video screen with the central viewing axis extending at an acute angle A in the range of about 55° to 75° with respect to the video screen; said peripheral enclosure having a length between the mounting and viewing ends of at least H/cosine A to obstruct light rays from striking the video screen perpendicularly; the peripheral enclosure having an inside surface of a light absorbing color; and a seal of a compressible material on the flange to prohibit outside light from entering between the mounting end and the video screen to provide reduced-glare viewing of the screen as the screen is viewed through the viewing end of the peripheral enclosure.
Claim 21
Dependent Claim
207 words
A hood for a video screen comprising: an elongated peripheral enclosure having a mounting end and a viewing end; said peripheral enclosure including first and second sets of opposed walls defining an enclosed passage of a tapered shape extending between the mounting and viewing ends; said taper providing decreasing cross section from the viewing end to the mounting end; said peripheral enclosure also having a central viewing axis; a flange on the mounting end of the peripheral enclosure to envelope the peripheral enclosure about the video screen; a VELCRO® fastener for attaching the peripheral enclosure to the video screen with the central viewing axis extending at an acute angle A in the range of about 55° to 75° with respect to the video screen; said peripheral enclosure having a length between the mounting and viewing ends of at least H/cosine A to obstruct light rays from striking the video screen perpendicularly; the peripheral enclosure having an inside surface of a light absorbing color; and a seal of a compressible material on the flange to prohibit outside light from entering between the mounting end and the video screen to provide reduced-glare viewing of the screen as the screen is viewed through the viewing end of the peripheral enclosure.
Claim 22
Dependent Claim
82 words
A hood for a video screen comprising: an elongated peripheral enclosure having amounting end and a viewing end; said peripheral enclosure including first and second sets of opposed walls defining an enclosed passage extending between the mounting and viewing ends; and a strap including a plurality of hooks and loops mounting the mounting end of the peripheral enclosure about the video screen to provide reduced-glare viewing of the screen as the screen is viewed through the viewing end of the peripheral enclosure.
Claim 23
Dependent Claim
82 words
A hood for a video screen comprising: an elongated peripheral enclosure having amounting end and a viewing end; said peripheral enclosure including first and second sets of opposed walls defining an enclosed passage extending between the mounting and viewing ends; and a strap including a plurality of hooks and loops mounting the mounting end of the peripheral enclosure about the video screen to provide reduced-glare viewing of the screen as the screen is viewed through the viewing end of the peripheral enclosure.
Claim 24
Dependent Claim
46 words
A hood as in claim 19 wherein said elongated peripheral enclosure is tapered, its mounting end having a larger cross section than its viewing end, thereby said peripheral enclosure obstructing a substantial amount of light rays entering the peripheral enclosure from striking the video screen perpendicularly.
Claim 25
Dependent Claim
25 words
A hood as in claim 20 further including an outwardly extending flange at its mounting end for mounting said peripheral enclosure on the video screen.
Claim 26
Dependent Claim
28 words
A hood as in claim 21 wherein said flange includes a compressible seal thereon to prevent outside light rays from entering said peripheral enclosure at the mounting end.
Claim 27
Dependent Claim
29 words
A hood as in claim 22 wherein said flange includes at least one mount for attaching a VELCRO® fastening strap for securing said peripheral enclosure about the video screen.
Claim 28
Dependent Claim
141 words
A hood for a video screen comprising: an elongated peripheral enclosure having a mounting end and a viewing end; said peripheral enclosure including first and second sets of opposed walls defining an enclosed passage extending between the mounting and viewing ends; said peripheral enclosure having a cross section that generally corresponds to the shape of the video screen; said peripheral enclosure including an outwardly extending flange at its mounting end; a compressible seal mounted on said flange to prevent light rays from entering said peripheral enclosure at the mounting end; said outwardly extending flange including at least one mount; and a strap including a plurality of hooks and loops mounting the mounting end of the peripheral enclosure about the video screen to provide reduced-glare viewing of the screen as the screen is viewed through the viewing end of the peripheral enclosure.
Claim 29
Dependent Claim
141 words
A hood for a video screen comprising: an elongated peripheral enclosure having a mounting end and a viewing end; said peripheral enclosure including first and second sets of opposed walls defining an enclosed passage extending between the mounting and viewing ends; said peripheral enclosure having a cross section that generally corresponds to the shape of the video screen; said peripheral enclosure including an outwardly extending flange at its mounting end; a compressible seal mounted on said flange to prevent light rays from entering said peripheral enclosure at the mounting end; said outwardly extending flange including at least one mount; and a strap including a plurality of hooks and loops mounting the mounting end of the peripheral enclosure about the video screen to provide reduced-glare viewing of the screen as the screen is viewed through the viewing end of the peripheral enclosure.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |