US3955152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular laser
Assignee: OI Glass Inc
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Filing: 1975-02-14
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Granted: 1976-05-04
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Expires: 1995-02-14
Abstract
Abstract There is disclosed a tubular gaseous laser device comprising a laser capillary tube with anode and laser end pieces, a cathode, a cathode envelope, a gas exhaust stem for filling the device with a laseable gas. These components are fabricated into three sub-assemblies which are separately tested before the final overall assembly of the device.
Inventors
- 👤 Albert D. Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:51
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/032; H01S3/0323; H01S3/038
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
158 words
In a gas laser including a laser capillary tube having a laseable gas filled bore and laser and an anode carried by said laser capillary in communication with said gas filled bore, and miror end pieces, a cathode envelope surrounding an end of said laser capillary tube and a cathode in said cathode envelope, the improvement comprising an annulus integral with said cathode envelope, said annulus having an internal diameter greater than the external diameter of said laser capillary tube so as to form a cylindrical space between said laser capillary tube and said annulus, and a low temperature inorganic solder glass sealant filling said cylindrical space and forming a unitary support and seal for said laser capillary tube in said cathode envelope between the ends of said laser capillary tube, whereby one of said laser mirror end pieces is contained in said cathode envelope and the other laser mirror end piece is external of said cathode envelope.
Claim 2
Dependent Claim
158 words
In a gas laser including a laser capillary tube having a laseable gas filled bore and laser and an anode carried by said laser capillary in communication with said gas filled bore, and miror end pieces, a cathode envelope surrounding an end of said laser capillary tube and a cathode in said cathode envelope, the improvement comprising an annulus integral with said cathode envelope, said annulus having an internal diameter greater than the external diameter of said laser capillary tube so as to form a cylindrical space between said laser capillary tube and said annulus, and a low temperature inorganic solder glass sealant filling said cylindrical space and forming a unitary support and seal for said laser capillary tube in said cathode envelope between the ends of said laser capillary tube, whereby one of said laser mirror end pieces is contained in said cathode envelope and the other laser mirror end piece is external of said cathode envelope.
Claim 3
Dependent Claim
24 words
The invention defined in claim 1 wherein said cathode is a thin film of conductive metal on the interior surface of said cathode envelope.
Claim 4
Dependent Claim
35 words
The invention defined in claim 1 including a cathode bore transverse to said laseable gas filled bore, said cathode bore communicating internally of the cathode cavity so as to minimize sputtering of the cathode edges.
Claim 5
Dependent Claim
58 words
The invention defined in claim 1 wherein said laser ends are secured to said capillary in laser alignment by a low melt solder glass sealant, and at least the laser mirror end piece external of said cathode envelope is joined to said laser capillary in hermetically sealed relation, whereby said laser can be baked out at higher temperatures.
Claim 6
Dependent Claim
86 words
The invention defined in claim 1 wherein said cathode envelope is formed in two subassemblies, the first subassembly having an elongated cylindrical glass body part and an integral part including said cathode and said annulus, and the second subassembly including a cathode electrical connector, an exhaust stem, and wherein said exhaust stem has a diameter equal to the diameter of the cylindrical portion of said first subassembly and fused thereto after joining of said second subassembly to said laser capillary tube by said solder glass sealant.
References Cited (Backward Citations)
US3495119A
Cited
US3855547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |