Patent US3909118A successfully refreshed from Google Patents.
US3909118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid cooled mirror
Assignee: Boeing North American Inc
•
Filing: 1974-03-04
•
Granted: 1975-09-30
•
Expires: 1994-03-04
Abstract
Abstract A system for cooling reflective surfaces of optical mirrors such as laser mirrors is provided, featuring use of multiple smallsized cavities or cells in the mirror body directly behind the reflective surface, through which coolant is caused to flow in short-length paths against the mirror surface between inlet/outlet openings serviced by a single or multiple manifold system, independently servicing each cavity. High coolant flow velocities at regulated rates against various surfaces of the mirror may thus be achieved according to the design requirements without incurring a large pressure drop penalty.
Inventors
- 👤 Arthur E Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 21:50
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08; G02B7/00; G02B7/18; G02B7/181; G02B7/1815; H; H10; H10W; H10W40/00; H10W40/40; H10W40/43; Y; Y10; Y10S; Y10S165/00; Y10S165/908
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
145 words
A fluid cooled mirror assembly comprising: a mirror member having at one face thereof an optically reflective surface and means providing a plurality of coolant circulation receptive cavities therebehind; said cavities being separated one from another by intersecting side wall portions providing wall intersection formations; a distributor means disposed in fluid sealing relation against said cavity walls and having some apertures therethrough to provide for flow of coolant fluid through said distributor means in the regions of some of said intersection formations into separate of said cavities, and thence through said cavities in heat-exchange flow relation against the rear of said mirror surface, and thence out through others of said apertures to provide for outlet of heat-carrying fluid, and manifold means in fluid flow communications with said apertures through said distributor means and with a supply of fluid coolant and with a fluid outlet means.
Claim 2
Dependent Claim
145 words
A fluid cooled mirror assembly comprising: a mirror member having at one face thereof an optically reflective surface and means providing a plurality of coolant circulation receptive cavities therebehind; said cavities being separated one from another by intersecting side wall portions providing wall intersection formations; a distributor means disposed in fluid sealing relation against said cavity walls and having some apertures therethrough to provide for flow of coolant fluid through said distributor means in the regions of some of said intersection formations into separate of said cavities, and thence through said cavities in heat-exchange flow relation against the rear of said mirror surface, and thence out through others of said apertures to provide for outlet of heat-carrying fluid, and manifold means in fluid flow communications with said apertures through said distributor means and with a supply of fluid coolant and with a fluid outlet means.
Claim 3
Dependent Claim
29 words
A mirror assembly according to claim 1, wherein said distributor means comprises a manifold having fluid inlet and fluid outlet ports in registry with selected ones of said cavities.
Claim 4
Dependent Claim
24 words
A mirror assembly according to claim 1, wherein said distributor means comprises a plate apertured in registry with selected ones of said intersection formations.
Claim 5
Dependent Claim
27 words
A mirror assembly as set forth in claim 1, wherein said cavity providing means comprises a plurality of recesses formed within the body of said mirror member.
Claim 6
Dependent Claim
18 words
A mirror assembly as set forth in claim 1, wherein said cavities are of rectangular plan form configuration.
Claim 7
Dependent Claim
18 words
A mirror assembly as set forth in claim 5, wherein said cavities are of square plan form configuration.
Claim 8
Dependent Claim
26 words
A mirror assembly as set forth in claim 2, wherein said manifold inlet and outlet ports are in registry with selected opposite corners of said cavities.
Claim 9
Dependent Claim
20 words
A mirror assembly as set forth in claim 1, wherein post means are disposed intermediately of each of said cavities.
Claim 10
Dependent Claim
37 words
A mirror assembly as set forth in claim 8, wherein said post means are fixed at their opposite ends to said mirror member and to said distributor means respectively, to reenforce said mirror member against configuration deviations.
Claim 11
Dependent Claim
22 words
A mirror assembly as set forth in claim 1, wherein the parts thereof are metallurgically bonded together in substantially fluid tight relation.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |