US3731992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spiral grooved liquid cooled laser mirror
Assignee: United States Department of the Air Force
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Filing: 1972-04-06
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Granted: 1973-05-08
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Expires: 1992-04-06
Abstract
Abstract A liquid cooled laser mirror having a mirror structure and a cover. A plurality of spiral grooves are located within the mirror structure while entrance and exit ports are located within the cover. Liquid enters through the cover entrance ports, circulates through the spiral grooves, and exits through the cover exit ports thereby cooling the mirror.
Inventors
- 👤 D Mansell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:27
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/04; H01S3/0401; G; G02; G02B; G02B7/00; G02B7/18; G02B7/181; G02B7/1815; H01S3/0407
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
105 words
A liquid cooled mirror comprising a mirror structure and a cover, said mirror structure having a reflective surface on one side thereof, a plurality of spiral grooves terminating at a central manifold opposite said reflective surface on the other side thereof and a recessed portion, said cover being fixedly secured within said recessed portion of said mirror structure and having a plurality of entrance and exit ports therein, said entrance ports being connected to one end of said spiral grooves and said exit ports being connected to said central manifold whereby a liquid can continually flow through said mirror structure thereby cooling said reflective surface.
Claim 2
Dependent Claim
105 words
A liquid cooled mirror comprising a mirror structure and a cover, said mirror structure having a reflective surface on one side thereof, a plurality of spiral grooves terminating at a central manifold opposite said reflective surface on the other side thereof and a recessed portion, said cover being fixedly secured within said recessed portion of said mirror structure and having a plurality of entrance and exit ports therein, said entrance ports being connected to one end of said spiral grooves and said exit ports being connected to said central manifold whereby a liquid can continually flow through said mirror structure thereby cooling said reflective surface.
Claim 3
Dependent Claim
15 words
A liquid cooled mirror as defined in claim 1 wherein there are six spiral grooves.
Claim 4
Dependent Claim
20 words
A liquid cooled mirror as defined in claim 2 wherein each of said spiral grooves has its own entrance port.
Claim 5
Dependent Claim
15 words
A liquid cooled mirror as defined in claim 3 wherein there are four exit ports.
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |