Patent US3998530A successfully refreshed from Google Patents.
US3998530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angularly movable mirror assembly
Assignee: Westinghouse Electric Corp
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Filing: 1975-07-28
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Granted: 1976-12-21
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Expires: 1995-07-28
Abstract
Abstract A planar mirror is mounted on a narrow rotary shaft-like support member without use of a wide distributed backing member, for low inertia angular movement about the axis of such shaft. A resilient material is interposed between the mirror and the shaft for antidistortion stress-free support.
Inventors
- 👤 Michael Kaschak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:46
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/18; G02B7/182; G02B7/1821
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
An improved angularly movable mirror assembly for airborne use, comprising, a planar mirror having a reflector surface, a relatively narrow elongated rigid support member extending across the back of said mirror midway between its opposite ends, said rigid support member being adapted for turning movement about a rotary axis extending along its length and in the plane of said reflector surface, and formed-in-place resilient members of elastomeric material interposed between said rigid support member and said mirror, as a support and motion-coupling intermediary.
Claim 2
Dependent Claim
83 words
An improved angularly movable mirror assembly for airborne use, comprising, a planar mirror having a reflector surface, a relatively narrow elongated rigid support member extending across the back of said mirror midway between its opposite ends, said rigid support member being adapted for turning movement about a rotary axis extending along its length and in the plane of said reflector surface, and formed-in-place resilient members of elastomeric material interposed between said rigid support member and said mirror, as a support and motion-coupling intermediary.
Claim 3
Dependent Claim
35 words
The mirror assembly as set forth in claim 1, wherein said rigid support member has slots at longitudinally-spaced-apart locations contiguous to opposite edges of said mirror, and said resilient members are disposed in said slots.
Claim 4
Dependent Claim
44 words
The mirror assembly of claim 2, wherein said rigid support member is adapted to accept removable means for temporary support of said mirror with clearance in said slots and to receive elastomeric material in flowable form into such clearance to form said resilient members.
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) | 1979-12-21 | 1980-06-21 | 1980-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-21 | 1984-06-21 | 1984-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-21 | 1988-06-21 | 1988-12-21 | $7700.00 | Window Closed / Lapsed |