US3861787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser mirror
Assignee: Combustion Engineering Inc
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Filing: 1973-08-29
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Granted: 1975-01-21
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Expires: 1993-08-29
Abstract
Abstract A laser mirror has an annular form and a plurality of concentric annular cooling passages internally thereof within about 1/10 inch of the mirror surface thereof. The apparatus has a box-beam rigid construction built around the cooling passages, a cooled inner supporting lip for a central cooperating mirror and a sealing back plate on its rear surface. The apparatus design is tolerant of a wide variety of forces.
Inventors
- 👤 Edward V Locke
- 👤 Richard A Hella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:22
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/04; H01S3/0401; G; G02; G02B; G02B5/00; G02B5/08; G02B5/10; G02B7/00; G02B7/18; G02B7/181; G02B7/1815
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
148 words
Laser mirror apparatus comprising: means defining a high conductivity, high strength annular mirror with a forward reflecting surface, a back surface and at least one sidewall, said means have a plurality of annular grooves having sidewalls, said grooves being concentric with each other, closed on themselves and extending from said back surface toward said reflecting forward surface, each said groove having a base portion adjacent said reflecting forward surface; and annular ring means sealably disposed within and filling a portion of each groove, said ring means extending from said back surface to a point adjacent the base portion of said grooves to define with each groove an annular coolant flow passage, said ring means being welded to said groove sidewalls over a depth of one-half to full depth of said ring means whereby said means defining said mirror and said ring means are substantially integral one with another.
Claim 2
Dependent Claim
148 words
Laser mirror apparatus comprising: means defining a high conductivity, high strength annular mirror with a forward reflecting surface, a back surface and at least one sidewall, said means have a plurality of annular grooves having sidewalls, said grooves being concentric with each other, closed on themselves and extending from said back surface toward said reflecting forward surface, each said groove having a base portion adjacent said reflecting forward surface; and annular ring means sealably disposed within and filling a portion of each groove, said ring means extending from said back surface to a point adjacent the base portion of said grooves to define with each groove an annular coolant flow passage, said ring means being welded to said groove sidewalls over a depth of one-half to full depth of said ring means whereby said means defining said mirror and said ring means are substantially integral one with another.
Claim 3
Dependent Claim
17 words
Mirror apparatus in accordance with claim 1 wherein a backing member is welded to said back face.
Claim 4
Dependent Claim
26 words
Mirror apparatus in accordance with claim 1 wherein said groove extends normal to said forward surface and at a slight angle with respect to said sidewall.
Claim 5
Dependent Claim
22 words
Mirror apparatus in accordance with claim 1 wherein an annular lip is provided at the inner front periphery of said mirror ring.
Claim 6
Dependent Claim
68 words
Mirror apparatus in accordance with claim 1 wherein a plurality of said passages are provided a backing member is welded to said back face, said groove extends normal to said forward surface and at a slight angle with respect to said sidewall, said mirror has an annular form, and an annular lip is provided at the inner front periphery of said mirror ring along said forward surface thereof.
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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |