Patent US3491200A successfully refreshed from Google Patents.
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US4605291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube screen viewing aid
Assignee: Individual
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Filing: 1984-10-24
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Granted: 1986-08-12
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Expires: 2004-10-24
Abstract
Abstract A pair of mirrors are mounted upon a support frame in front of a cathode ray viewing screen so as to double reflect the images on the screen so that they can be viewed looking downwardly rather than directly at the screen. A support member is provided for the mirrors which enables individual relative adjustment of such mirrors both towards and away from the screen as well as vertically and angularly relative to the screen. This end result is achieved by means of adjustable support rods which fit through elongated slots formed in the support frame as well as elongated slots formed in the mounts for the mirrors. In one embodiment the viewer assembly is supported on top of the CRT assembly with a balancing counterweight being employed to counterbalance the weight of the mirrors and their associated support members. In another embodiment a stand is provided for supporting the viewing aid in front of the screen.
Inventors
- 👤 Thomas A. Jolly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:45
CPC Classifications
G; G02; G02B; G02B17/00; G02B17/02; G02B17/023; G02B23/00; G02B23/02; G02B23/08; G02B27/00; G02B27/02; G02B27/022; G02B27/024; G02B27/026; G02B7/00; G02B7/18; G02B7/182; G02B7/1822; G02B7/1824
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
100 words
A viewing device for facilitating the viewing of images on a screen comprising first and second reflecting mirrors, support means, and means for adjustably mounting said mirrors on the support means for vertical, lateral and pivotal positioning relative to each other and said screen so as to double reflect the screen images to a desired convenient viewing point comprising a support assembly for supporting each of said mirrors, a pair of oppositely positioned side plates having elongated opposing slots formed therethrough, and means for supporting said support assemblies for selective positioning along said slots and pivotally relative to said plates.
Claim 2
Dependent Claim
100 words
A viewing device for facilitating the viewing of images on a screen comprising first and second reflecting mirrors, support means, and means for adjustably mounting said mirrors on the support means for vertical, lateral and pivotal positioning relative to each other and said screen so as to double reflect the screen images to a desired convenient viewing point comprising a support assembly for supporting each of said mirrors, a pair of oppositely positioned side plates having elongated opposing slots formed therethrough, and means for supporting said support assemblies for selective positioning along said slots and pivotally relative to said plates.
Claim 3
Dependent Claim
60 words
The viewing device of claim 1 wherein said mirror support assemblies have elongated slots formed therein, said means for supporting the mirror support assemblies comprising rod means fitted through the slots in the side plates and the slots of said support assemblies for supporting the mirror support assemblies for adjustable positioning along said slots and pivotally relative to each other.
Claim 4
Dependent Claim
44 words
The viewing device of claim 2 wherein said rod means comprises a plurality of rods threaded at the opposite ends thereof and knob means threadably attached to the threaded rod ends for securing the mirror support assemblies to the side plates in selected positions.
Claim 5
Dependent Claim
29 words
The viewing device of claim 1 and further including a support frame having oppositely positioned arms and means for adjustably positioning and mounting the side plates between the arms.
Claim 6
Dependent Claim
28 words
The viewing device of claim 4 and further including a counterweight mounted between said arms for counterbalancing the weight of the mirrors, mirror support assemblies and side plates.
Claim 7
Dependent Claim
50 words
The viewing device of claim 4 and further including a plurality of oppositely positioned apertures formed in said oppositely positioned arms, said means for positioning and mounting the side plates between the arms comprising rod means fitted through selected pairs of said apertures and the slots of said side plates.
Claim 8
Dependent Claim
29 words
The viewing device of claim 6 wherein the opposite ends of said rod means are threaded and further including knob means for removably securing the plates to said arms.
Claim 9
Dependent Claim
16 words
The viewing device of claim 4 and further including a support stand for supporting said arms.
Claim 10
Dependent Claim
133 words
A viewing device for facilitating the viewing of the screen of a CRT display device comprising a pair of reflecting mirrors, a support assembly for supporting each of said mirrors, each of said support assemblies having an elongated slot formed therethrough and running in a direction substantially parallel to the surface of the associated mirror, a pair of opposing side plates having oppositely positioned elongated slots formed therethrough, rod means fitted through the slots in the side plates and the slots in the mirror support assemblies for adjustably supporting the mirror assemblies on the side plates for pivotal, longitudinal and lateral adjustment relative to the side plates, to each other and to the CRT screen, and means for adjustably supporting the side plates so as to position the mirrors opposite the CRT screen.
Claim 11
Dependent Claim
133 words
A viewing device for facilitating the viewing of the screen of a CRT display device comprising a pair of reflecting mirrors, a support assembly for supporting each of said mirrors, each of said support assemblies having an elongated slot formed therethrough and running in a direction substantially parallel to the surface of the associated mirror, a pair of opposing side plates having oppositely positioned elongated slots formed therethrough, rod means fitted through the slots in the side plates and the slots in the mirror support assemblies for adjustably supporting the mirror assemblies on the side plates for pivotal, longitudinal and lateral adjustment relative to the side plates, to each other and to the CRT screen, and means for adjustably supporting the side plates so as to position the mirrors opposite the CRT screen.
Claim 12
Dependent Claim
45 words
The viewing device of claim 9 wherein the rod means comprises a plurality of rods each being threaded at the opposite ends thereof and knob means threadably engaging the rod ends for removably securing the mirror assemblies to the side plates in a selected positions.
Claim 13
Dependent Claim
77 words
The viewing device of claim 9 wherein the means for adjustably supporting the side plates comprises a support frame having opposing side arms with a plurality of oppositely positioned apertures formed therethrough, rod means fitted through selected pairs of said apertures and said side plate slots, the opposite ends of said rod means being threaded, and knob means threadably engaging the rod means ends for securing the side plates to the side arms of the support frame.
Claim 14
Dependent Claim
46 words
The viewing device of claim 11 and further including a counterweight mounted between said side arms towards one end of the support frame for counterbalancing the weight of the side plates, mirrors and mirror support assemblies, the side arms being supported on said CRT display device.
Claim 15
Dependent Claim
71 words
The viewing device of claim 9 wherein the means for adjustably supporting the side plates comprises a stand having a base and an upstanding frame extending from the base, said frame having a plurality of opposing apertures formed therethrough, rod means fitted through the slots in the side plates and selected pairs of opposing apertures in the side arms, and means for removably securing the side plates to the side arms.
Claim 16
Dependent Claim
47 words
The viewing device of claim 13 wherein the means for securing the side plates to the side arms comprises threaded knobs, said rod means comprising a plurality of rods which are threaded at the opposite ends thereof, said knobs threadably engaging the opposite ends of said rods.
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) | 1989-08-11 | 1990-02-10 | 1990-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-11 | 1994-02-10 | 1994-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-11 | 1998-02-10 | 1998-08-12 | $7700.00 | Window Closed / Lapsed |