US3671883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for effecting high gas flow in discharge tube of gas laser
Assignee: Linde Sverige AB
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Filing: 1970-10-20
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Granted: 1972-06-20
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Expires: 1990-10-20
Abstract
Abstract Gas lasers characterized by high gas flow through the discharge tube of the gas lasers are obtained by feeding the gas to the discharge tube radially in a plurality of sections along the discharge tube and preferably removing the gas via outlet sections provided between the gas inlet sections. The holes or slots through which the gas is radially introduced may form a certain angle with the radius so as to give a rotary movement to the gas introduced and/or an angle with a plane perpendicular to the axis so that the inflowing gas is given an axial velocity component.
Inventors
- 👤 Erik Algot Smars
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:16
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/036; H01S3/04; H01S3/041
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
102 words
In a gas laser comprising an elongated cylindrical gas discharge tube having a discharge volume and a mirror at each end of said discharge volume, the improvement which comprises providing the discharge tube with a plurality of axial inlet sections and an axial outlet section between each adjacent pair of inlet sections, each section having an annular chamber surrounding the discharge volume and a plurality of holes or slots in uniform distribution around the periphery of said discharge volume, said holes or slots connecting said annular chamber and said discharge volume for conducting lasing gas to and from, respectively, said discharge volume.
Claim 2
Dependent Claim
102 words
In a gas laser comprising an elongated cylindrical gas discharge tube having a discharge volume and a mirror at each end of said discharge volume, the improvement which comprises providing the discharge tube with a plurality of axial inlet sections and an axial outlet section between each adjacent pair of inlet sections, each section having an annular chamber surrounding the discharge volume and a plurality of holes or slots in uniform distribution around the periphery of said discharge volume, said holes or slots connecting said annular chamber and said discharge volume for conducting lasing gas to and from, respectively, said discharge volume.
Claim 3
Dependent Claim
44 words
The improvement of claim 1 wherein the holes or slots are in a plane perpendicular to the axis of the discharge tube and form an angle with the radius so that the gas flow receives a velocity component along the tangent in the plane.
Claim 4
Dependent Claim
39 words
The improvement of claim 1 wherein the holes or slots are in a plane perpendicular to the axis of the discharge tube and form an angle with the plane so that the gas flow receives an axial velocity component.
Claim 5
Dependent Claim
13 words
The improvement of claim 1 wherein the outlet sections are made of metal.
Claim 6
Dependent Claim
15 words
The improvement of claim 4 wherein the outlet sections are provided with liquid cooling means.
Claim 7
Dependent Claim
37 words
The improvement of claim 1 wherein after the first feed section, reckoned from each end of the discharge tube, a cylindrically shaped electrode is arranged, through which current is fed and between which gas discharge takes place.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |