Patent US3887883A successfully refreshed from Google Patents.
US3887883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas laser tube and method of fabricating same
Assignee: Individual
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Filing: 1973-10-29
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Granted: 1975-06-03
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Expires: 1993-10-29
Abstract
Abstract An improved gas laser tube is fabricated by counter boring the ends of a tubular aluminum extrusion having an inner tubular portion supported from an outer tubular portion via the intermediary of a plurality of radially directed support vanes or legs. Metallic transverse walls are sealed across the ends of the tubular extrusion to define the ends of a gas tight metallic envelope. An electrically insulative glow discharge tube is axially disposed within and supported by the inner tubular portion of the extrusion in axial alignment with an optical resonator of the laser tube.
Inventors
- 👤 Lewayne E Garman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:44
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
162 words
In a gas laser tube: a hollow elongated unipotential metallic envelope means; metallic wall means extending transversely of said envelope means in axially spaced relation as unipotential portions of said envelope means; means for defining at least a portion of a gas tight enclosure within said envelope means between said metallic transverse wall means; an elongated electrically insulative glow discharge tube disposed within said elongated metallic envelope means in axial alignment therewith; support means disposed (within said envelope means) intermediate said transverse wall means for supporting said glow discharge tube from that portion of said hollow metallic envelope means intervening between said transverse wall means; means defining an optical resonator disposed in axial alignment with said glow discharge tube; means filling said glow discharge tube with a fluid laser gain medium; and means for establishing an electrical discharge within said gain medium within said discharge tube for supporting sustained stimulated coherent emission of optical radiation within said optical resonator of the laser.
Claim 2
Dependent Claim
162 words
In a gas laser tube: a hollow elongated unipotential metallic envelope means; metallic wall means extending transversely of said envelope means in axially spaced relation as unipotential portions of said envelope means; means for defining at least a portion of a gas tight enclosure within said envelope means between said metallic transverse wall means; an elongated electrically insulative glow discharge tube disposed within said elongated metallic envelope means in axial alignment therewith; support means disposed (within said envelope means) intermediate said transverse wall means for supporting said glow discharge tube from that portion of said hollow metallic envelope means intervening between said transverse wall means; means defining an optical resonator disposed in axial alignment with said glow discharge tube; means filling said glow discharge tube with a fluid laser gain medium; and means for establishing an electrical discharge within said gain medium within said discharge tube for supporting sustained stimulated coherent emission of optical radiation within said optical resonator of the laser.
Claim 3
Dependent Claim
162 words
In a gas laser tube: a hollow elongated unipotential metallic envelope means; metallic wall means extending transversely of said envelope means in axially spaced relation as unipotential portions of said envelope means; means for defining at least a portion of a gas tight enclosure within said envelope means between said metallic transverse wall means; an elongated electrically insulative glow discharge tube disposed within said elongated metallic envelope means in axial alignment therewith; support means disposed (within said envelope means) intermediate said transverse wall means for supporting said glow discharge tube from that portion of said hollow metallic envelope means intervening between said transverse wall means; means defining an optical resonator disposed in axial alignment with said glow discharge tube; means filling said glow discharge tube with a fluid laser gain medium; and means for establishing an electrical discharge within said gain medium within said discharge tube for supporting sustained stimulated coherent emission of optical radiation within said optical resonator of the laser.
Claim 4
Dependent Claim
162 words
In a gas laser tube: a hollow elongated unipotential metallic envelope means; metallic wall means extending transversely of said envelope means in axially spaced relation as unipotential portions of said envelope means; means for defining at least a portion of a gas tight enclosure within said envelope means between said metallic transverse wall means; an elongated electrically insulative glow discharge tube disposed within said elongated metallic envelope means in axial alignment therewith; support means disposed (within said envelope means) intermediate said transverse wall means for supporting said glow discharge tube from that portion of said hollow metallic envelope means intervening between said transverse wall means; means defining an optical resonator disposed in axial alignment with said glow discharge tube; means filling said glow discharge tube with a fluid laser gain medium; and means for establishing an electrical discharge within said gain medium within said discharge tube for supporting sustained stimulated coherent emission of optical radiation within said optical resonator of the laser.
Claim 5
Dependent Claim
50 words
The apparatus of claim 1 wherein said elongated metallic envelope means comprises a metallic extrusion having an inner bore for containing and supporting said glow discharge tube via the intermediary of a portion of said extrusion intervening radially between said inner bore and an outer wall of said metallic extrusion.
Claim 6
Dependent Claim
29 words
The apparatus of claim 2 wherein said portion of said extrusion intervening between said inner bore and said outer wall comprises at least one radially extending metallic web portion.
Claim 7
Dependent Claim
41 words
The apparatus of claim 2 wherein said metallic extrusion is counterbored at one end thereof to define by the unbored region of said extrusion said metallic support structure for supporting said discharge tube within said inner tubular portion of said extrusion.
Claim 8
Dependent Claim
38 words
The apparatus of claim 4 wherein said inner bore is indented to provide an out-of-round geometry for said inside bore to receive and hold the outer wall of said discharge tube by means of an interference fit therebetween.
Claim 9
Dependent Claim
20 words
The apparatus of claim 2 wherein said metallic extrusion is of aluminum having a purity of aluminum Greater than 99%.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |