US4803697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold welded laser mirror assembly
Assignee: AMERICAN LASER Corp A CORP OF FL
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Filing: 1987-11-05
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Granted: 1989-02-07
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Expires: 2007-11-05
Abstract
Abstract A gas laser tube is fitted with internal mirrors only and no windows. The laser tube is processed by heating the tube with the ends open in a vacuum oven to drive out contaminating substances. The mirrors are installed by cold welding after the tube has been decontaminated and filled with a fresh supply of its operating gas. The mirrors mount on flexible bellows which enable the mirrors to be easily aligned.
Inventors
- 👤 Edwin G. Chaffee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:49
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/034
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
162 words
A gas laser apparatus, comprising: (a) a gas laser tube having a bore extending between cathode and anode ends; (b) said laser tube terminating at each end with a bellows assembly operative to extend the length of the tube bore; (c) each said bellows assembly comprising: (i) an adjustably positionable metal bellows secured to a selected end of said tube; (ii) a tubular pedestal secured at one end to said bellows to form an extension thereof and at the opposite end providing a mirror mount surface; (iii) a mirror secured to said surface; (iv) a cold weld material located between said mirror and mirror mount surface; and (v) retaining means secured to said pedestal encasing the outer portion of said mirror and operative to apply pressure to said cold weld material to establish a cold weld seal between said mirror and mirror mount surface to retain said mirror on and prevent shifting of said mirror with respect to said mirror mount surface.
Claim 2
Dependent Claim
162 words
A gas laser apparatus, comprising: (a) a gas laser tube having a bore extending between cathode and anode ends; (b) said laser tube terminating at each end with a bellows assembly operative to extend the length of the tube bore; (c) each said bellows assembly comprising: (i) an adjustably positionable metal bellows secured to a selected end of said tube; (ii) a tubular pedestal secured at one end to said bellows to form an extension thereof and at the opposite end providing a mirror mount surface; (iii) a mirror secured to said surface; (iv) a cold weld material located between said mirror and mirror mount surface; and (v) retaining means secured to said pedestal encasing the outer portion of said mirror and operative to apply pressure to said cold weld material to establish a cold weld seal between said mirror and mirror mount surface to retain said mirror on and prevent shifting of said mirror with respect to said mirror mount surface.
Claim 3
Dependent Claim
16 words
A gas laser apparatus as claimed in claim 1 wherein said cold weld material comprises indium.
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) | 1992-02-07 | 1992-08-08 | 1993-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-07 | 1996-08-08 | 1997-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-07 | 2000-08-08 | 2001-02-07 | $7700.00 | Window Closed / Lapsed |