US4573162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas laser, particularly fast axial flow gas transport laser
Assignee: Messer Griesheim GmbH
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Filing: 1984-05-29
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Granted: 1986-02-25
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Expires: 2004-05-29
Abstract
Abstract A fast axial flow gas transport laser has a discharge tube. The discharge tube has at least one sudden discontinuous enlargement of the cross section of the discharge tube.
Inventors
- 👤 Lothar Bakowsky
- 👤 Eckhard Beyer
- 👤 Gerd Herziger
- 👤 Peter Loosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:26
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/034; H01S3/0346; H01S3/036
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
124 words
In a fast axial flow gas transport laser having a discharge tube through which laser gas flow, the improvement being said discharge tube having at least one sudden irregular enlargement of the cross section of said discharge tube, stops being mounted in said enlargement of the cross section of said discharge tube, and said discharge tube being connected to one end head having a tangential laser gas intake opening and to one end head having a laser gas outlet opening; enlargement of the cross section of said discharge tube being at specific points in said discharge tube as determined by the wavelength of the macro-vortex which forms in said discharge tube as a result of a rotation impulse generated by tangential laser gas inflow.
Claim 2
Dependent Claim
124 words
In a fast axial flow gas transport laser having a discharge tube through which laser gas flow, the improvement being said discharge tube having at least one sudden irregular enlargement of the cross section of said discharge tube, stops being mounted in said enlargement of the cross section of said discharge tube, and said discharge tube being connected to one end head having a tangential laser gas intake opening and to one end head having a laser gas outlet opening; enlargement of the cross section of said discharge tube being at specific points in said discharge tube as determined by the wavelength of the macro-vortex which forms in said discharge tube as a result of a rotation impulse generated by tangential laser gas inflow.
Claim 3
Dependent Claim
31 words
Gas laser according to claim 1, characterized thereby that said enlarged cross section of said discharge tube is from 1.2 to 1.6 times the interior cross section of said discharge tube.
Claim 4
Dependent Claim
24 words
Gas laser according to claim 1, characterized thereby that said enlarged cross section of said discharge tube is contained in a discharge tube diffusor.
Claim 5
Dependent Claim
19 words
Gas laser according to claim 3, characterized thereby that said discharge tube diffusor has a length of 40 mm.
Claim 6
Dependent Claim
27 words
Gas laser according to claim 3, characterized thereby that said diffusor in combination with the adjacent portions of said discharge tube forms one unit in one piece.
Claim 7
Dependent Claim
23 words
Gas laser according to claim 5, characterized thereby that said diffusor has an interchangeable connection with said adjacent portions of the discharge tube.
Claim 8
Dependent Claim
16 words
Gas laser according to claim 3, characterized thereby that the material of said diffusor is metal.
Claim 9
Dependent Claim
16 words
Gas laser according to claim 3, characterized thereby that the material of said diffusor is ceramic.
Claim 10
Dependent Claim
16 words
Gas laser according to claim 3, characterized thereby that the material of said diffusor is glass.
Claim 11
Dependent Claim
30 words
Gas laser according to claim 3, characterized thereby that said stops are twisted against the flow direction of the laser gas at an angle of incidence between 15° and 30°.
Claim 12
Dependent Claim
28 words
Gas laser according to claim 3, characterized thereby that said stops are arranged in the rear area of said diffusor in the direction of the laser gas flow.
Claim 13
Dependent Claim
18 words
Gas laser according to claim 3, characterized thereby that said stops have a fixed attachment in said diffusor.
Claim 14
Dependent Claim
16 words
Gas laser according to claim 3, characterized thereby that said stops in said diffusor are interchangeable.
Claim 15
Dependent Claim
16 words
Gas laser according to claim 3, characterized thereby that said stops in said diffusor are adjustable.
Claim 16
Dependent Claim
18 words
Gas laser according to claim 3, characterized thereby that the angle of incidence of said stops is adjustable.
Claim 17
Dependent Claim
19 words
Gas laser according to claim 3, characterized thereby that said stops are movable on the circumference of said diffusor.
Claim 18
Dependent Claim
23 words
Gas laser according to claim 3, characterized thereby that the elevation of said stops to the center axis of said diffusor is adjustable.
Claim 19
Dependent Claim
28 words
Gas laser according to claim 3, characterized thereby that said stops consist of a material selected from the group consisting of metal, glass, ceramic and a combination thereof.
Claim 20
Dependent Claim
18 words
Gas laser according to claim 3, characterized thereby that five of said stops are provided in said diffusor.
Claim 21
Dependent Claim
20 words
Gas laser according to claim 1, characterized thereby that a gas distributor is provided in one of said end heads.
Claim 22
Dependent Claim
31 words
Gas laser according to claim 20, characterized thereby that the center axis of said gas intake opening is arranged congruently with the edge of a free end of said gas distributor.
Claim 23
Dependent Claim
17 words
Gas laser according to claim 21, characterized thereby that said gas distributor is designed as a tube.
Claim 24
Dependent Claim
25 words
Gas laser according to claim 22, characterized thereby that said center axis of said gas distributor coincides with the center axis of said discharge tube.
Claim 25
Dependent Claim
34 words
Gas laser according to claim 22, characterized thereby that the distance between the edge and the front end of the discharge tube is no less than 3 mm and no more than 20 mm.
Claim 26
Dependent Claim
17 words
Gas laser according to claim 22, characterized thereby that said gas distributor consists of a non-conductive material.
Claim 27
Dependent Claim
17 words
Gas laser according to claim 1, characterized that said two ends heads are supplied with high voltage.
Claim 28
Dependent Claim
23 words
Gas laser according to claim 26, characterized thereby that said high voltage is supplied to the inner spaces of said two end heads.
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) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |