Patent EP0373665A2 successfully refreshed from Google Patents.
US3590773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arcuate prism display
Assignee: Oak Electro Netics Corp
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Filing: 1969-05-19
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Granted: 1971-07-06
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Expires: 1989-05-19
Abstract
Abstract A display device using an arcuate-shaped prism having an object surface, an arcuate-reflecting surface and an image surface. There is fixed indicia positioned adjacent the object surface and movable indicator members arranged to move in a path adjacent the object surface such that the display at the image surface will provide useful information in the form of the relationship between the fixed indicia and movable indicator members.
Inventors
- 👤 Albert L Ruppert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:21
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/16; G02; G02B; G02B5/00; G02B5/04; G08; G08B; G08B5/00; G08B5/02; H; H01; H01H; H01H9/00; H01H9/16
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
75 words
A display device including an arcuate-shaped prism having an object surface, an arcuate-reflecting surface and an image surface, indicia adjacent said object surface, said object and image surfaces being positioned relative to said reflecting surfaces to display said indicia at said image surface, and indicator members movable relative to said first-named indicia in a path adjacent said object surface such that the relationship between said relatively movable indicator members is displayed at the image surface.
Claim 2
Dependent Claim
75 words
A display device including an arcuate-shaped prism having an object surface, an arcuate-reflecting surface and an image surface, indicia adjacent said object surface, said object and image surfaces being positioned relative to said reflecting surfaces to display said indicia at said image surface, and indicator members movable relative to said first-named indicia in a path adjacent said object surface such that the relationship between said relatively movable indicator members is displayed at the image surface.
Claim 3
Dependent Claim
42 words
The structure of claim 1 further characterized by and including a second arcuate-shaped prism having an object surface, an arcuate-reflecting surface and an image surface, and movable indicator members adjacent said second named object surface for display at its corresponding image surface.
Claim 4
Dependent Claim
20 words
The structure of claim 2 further characterized in that said movable indicator members are arranged for simultaneous and coordinated movement.
Claim 5
Dependent Claim
15 words
The structure of claim 3 further characterized in that said arcuate-shaped prisms are generally concentric.
Claim 6
Dependent Claim
26 words
The structure of claim 2 further characterized in that said object surfaces are arcuate and said image surfaces are generally flat and in the same plane.
Claim 7
Dependent Claim
39 words
The structure of claim 4 further characterized by and including a third arcuate-shaped prism, having an object surface, an arcuate-reflecting surface and an image surface, and fixed indicia adjacent said last-named object surface for display at its image surface.
Claim 8
Dependent Claim
31 words
The structure of claim 4 further characterized in that said movable indicator members are arranged for movement in concentric paths, which paths are generally uniformly spaced from the associated object surfaces.
Claim 9
Dependent Claim
36 words
The structure of claim 7 further characterized in that each of said movable indicator members are fixed to a pivotal member, which pivotal member is arranged for movement about the center of said concentric arcuate prisms.
Claim 10
Dependent Claim
19 words
The structure of claim 7 further characterized by and including a housing enclosing said movable indicator members and prisms.
Claim 11
Dependent Claim
85 words
A display device including a plurality of arcuate-shaped prisms, each having an arcuate object surface, an arcuate-reflecting surface and a generally flat image surface, said image surfaces all being coplanar and said arcuate-shaped prisms all being concentrically arranged, fixed indicia adjacent each object surface, and a movable indicator members adjacent each object surface and positioned to move in a path adjacent each object surface such that the relationship between each fixed indicia and its associated movable indicator members is displayed at the coplanar image surfaces.
Claim 12
Dependent Claim
85 words
A display device including a plurality of arcuate-shaped prisms, each having an arcuate object surface, an arcuate-reflecting surface and a generally flat image surface, said image surfaces all being coplanar and said arcuate-shaped prisms all being concentrically arranged, fixed indicia adjacent each object surface, and a movable indicator members adjacent each object surface and positioned to move in a path adjacent each object surface such that the relationship between each fixed indicia and its associated movable indicator members is displayed at the coplanar image surfaces.
Claim 13
Dependent Claim
24 words
The structure of claim 10 further characterized in that each of said movable indicator members are arranged for simultaneous movement about a common axis.
Claim 14
Dependent Claim
25 words
The structure of claim 10 further characterized in that the arcuate-reflecting surfaces of at least two of said prisms adjoin each other at spaced points.
Claim 15
Dependent Claim
62 words
A display device including a curved prism having a curved reflecting surface and object and image surfaces in reflecting position relative thereto, indicia adjacent said object surface, and an indicator member movable relative to said first-named indicia in a path generally uniformly spaced from said object surface such that the relationship between said relatively movable indicia is displayed at the image surface.
Claim 16
Dependent Claim
62 words
A display device including a curved prism having a curved reflecting surface and object and image surfaces in reflecting position relative thereto, indicia adjacent said object surface, and an indicator member movable relative to said first-named indicia in a path generally uniformly spaced from said object surface such that the relationship between said relatively movable indicia is displayed at the image surface.
Claim 17
Dependent Claim
63 words
A display device including a curved prism having a curved reflecting surface and an object surface in reflecting position relative thereto, fixed indicia adjacent said object surface, and movable indicator member positioned to move in a path generally uniformly spaced from said object surface such that the relationship between said fixed indicia and movable indicator member will be reflected by said reflecting surface.
Claim 18
Dependent Claim
63 words
A display device including a curved prism having a curved reflecting surface and an object surface in reflecting position relative thereto, fixed indicia adjacent said object surface, and movable indicator member positioned to move in a path generally uniformly spaced from said object surface such that the relationship between said fixed indicia and movable indicator member will be reflected by said reflecting surface.
Claim 19
Dependent Claim
14 words
The structure of claim 14 further characterized in that said object surface is curved.
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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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |