Patent US4164744A successfully refreshed from Google Patents.
Patent US3977765A successfully refreshed from Google Patents.
US3977765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow retroreflector mount
Assignee: PLX Inc
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Filing: 1974-05-17
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Granted: 1976-08-31
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Expires: 1994-05-17
Abstract
Abstract Known hollow retroreflectors comprise three plates united along joints where the plates abut one another and have reflecting faces oriented to define a hollow reflecting right-angled corner. Yieldable support means for the hollow retroreflector extends from the joints to a supporting structure, and ideally the engagement of the yieldable support means with the hollow retroreflector is confined to said joints.
Inventors
- 👤 Morton S. Lipkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:11
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/12; G02B5/122
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
88 words
A hollow retroreflector assembly including a retroreflector formed of three plates having flat reflecting faces meeting each other at right angles and each of said plates meeting the other two of said plates at respective junctions thereby constituting three junctions extending at right angles to each other, a support structure for supporting said retroreflector, and means for supporting said retroreflector on said support structure, said supporting means being confined to the proximity of said junctions, for limiting the retroreflector-supporting forces essentially to the planes of the three plates.
Claim 2
Dependent Claim
88 words
A hollow retroreflector assembly including a retroreflector formed of three plates having flat reflecting faces meeting each other at right angles and each of said plates meeting the other two of said plates at respective junctions thereby constituting three junctions extending at right angles to each other, a support structure for supporting said retroreflector, and means for supporting said retroreflector on said support structure, said supporting means being confined to the proximity of said junctions, for limiting the retroreflector-supporting forces essentially to the planes of the three plates.
Claim 3
Dependent Claim
37 words
A hollow retroreflector assembly in accordance with claim 1, wherein said junctions extend along lines meeting at an apex and wherein said supporting means includes resilient elements disposed at protions of said junctions spaced from said apex.
Claim 4
Dependent Claim
20 words
A hollow retroreflector assembly in accordance with claim 1, wherein said supporting means consists of localized masses of resilient material.
Claim 5
Dependent Claim
46 words
A hollow retroreflector assembly in accordance with claim 1, wherein said junctions meet at an apex and wherein said supporting means includes three resilient elements disposed at portions of said junctions spaced from said apex, and a resilient element between said support structure and said apex.
Claim 6
Dependent Claim
29 words
A hollow retroreflector assembly in accordance with claim 1, wherein said supporting means includes resilient material interposed between said support structure and said retroreflector wherever said retroreflector is supported.
Claim 7
Dependent Claim
20 words
A hollow retroreflector assembly in accordance with claim 5, wherein said resilient material comprises localized resilient masses at said junctions.
Claim 8
Dependent Claim
39 words
A hollow retroreflector assembly in accordance with claim 5, wherein said junctions extend along lines meeting at an apex and wherein said resilient material includes three localized resilient masses disposed at portions of said junctions spaced from said apex.
Claim 9
Dependent Claim
48 words
A hollow retroreflector assembly in accordance with claim 5, wherein said junctions meet at an apex and wherein said resilient material includes three localized resilient masses disposed at portions of said junctions spaced from said apex and a localized resilient mass between said support structure and said apex.
References Cited (Backward Citations)
US3663084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |