Patent US3670261A successfully refreshed from Google Patents.
US3670261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anode design for gas discharge lasers
Assignee: Raytheon Co
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Filing: 1970-11-09
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Granted: 1972-06-13
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Expires: 1990-11-09
Abstract
Abstract The disclosed laser anode arrangement includes a tubular anodecontaining body of ceramic material bonded to an end of an elongated cylindrical body which defines a laser gas containing discharge-confining longitudinal bore. The bore of the anodecontaining body is axially aligned with the discharge-confining bore and has a diameter greater than that of the dischargeconfining bore. An electron collecting anode surface is provided by a metal coating bonded to the inner lateral surface of the anode-containing body. The metal coating may include a base layer of a molybdenum-manganese mixture and a nickel layer bonded to the base layer. The metal coating extends around the end of the anode-containing body away from the discharge-confining body and is brazed to a metal sleeve to provide an electrically conductive path to the metal coating. A coolant such as ordinary tap water may be passed in direct contact with the outer lateral surface of the discharge-confining body and a portion of the outer lateral surface of the anode-containing body. The coolant is electrically insulated from both the metal anode coating and the electrically conductive path thereto.
Inventors
- 👤 Abel S Halsted
- 👤 David D Hallock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:47
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/032; H01S3/0323; H01S3/0326; H01S3/038
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
97 words
In a discharge excited gas laser, an anode arrangement comprising: a body of electrically insulating material having a cylindrical bore therethrough; a metal anode coating bonded to the surface of said bore; and means for providing an electrically conductive path to said coating to apply an electrical potential thereto, said means including an extension of said metal coating around an end of said body and over a recessed portion of the outer lateral surface of said body, and an electrically conductive sleeve brazed to the portion of said coating extending over said recessed portion of said body.
Claim 2
Dependent Claim
97 words
In a discharge excited gas laser, an anode arrangement comprising: a body of electrically insulating material having a cylindrical bore therethrough; a metal anode coating bonded to the surface of said bore; and means for providing an electrically conductive path to said coating to apply an electrical potential thereto, said means including an extension of said metal coating around an end of said body and over a recessed portion of the outer lateral surface of said body, and an electrically conductive sleeve brazed to the portion of said coating extending over said recessed portion of said body.
Claim 3
Dependent Claim
150 words
A gas laser comprising: an elongated cylindrical body of electrically insulating material having a discharge-confining axial longitudinal bore therethrough, said discharge-confining bore containing a gas capable of undergoing laser action, a cathode-containing housing bonded to one end of said cylindrical body, a tubular body of electrically insulating material bonded to the opposite end of said cylindrical body, said tubular body being axially aligned with said cylindrical body and having an inner diameter greater than the diameter of said discharge-confining bore, a metal anode coating bonded to the inner lateral surface of said tubular body, means for passing a coolant in direct contact with the outer lateral surface of said elongated cylindrical body and a poRtion of the outer lateral surface of said tubular body, and means for providing an electrically conductive path to said metal coating to apply an electrical potential thereto, said path being electrically insulated from said coolant.
Claim 4
Dependent Claim
150 words
A gas laser comprising: an elongated cylindrical body of electrically insulating material having a discharge-confining axial longitudinal bore therethrough, said discharge-confining bore containing a gas capable of undergoing laser action, a cathode-containing housing bonded to one end of said cylindrical body, a tubular body of electrically insulating material bonded to the opposite end of said cylindrical body, said tubular body being axially aligned with said cylindrical body and having an inner diameter greater than the diameter of said discharge-confining bore, a metal anode coating bonded to the inner lateral surface of said tubular body, means for passing a coolant in direct contact with the outer lateral surface of said elongated cylindrical body and a poRtion of the outer lateral surface of said tubular body, and means for providing an electrically conductive path to said metal coating to apply an electrical potential thereto, said path being electrically insulated from said coolant.
Claim 5
Dependent Claim
46 words
A gas laser according to claim 2 wherein said tubular body is of ceramic material and said metal coating includes a layer of molybdenum-manganese brazing material bonded to the inner lateral surface of said tubular body and a layer of nickel bonded to said molybdenum-manganese layer.
Claim 6
Dependent Claim
43 words
A gas laser according to claim 3 wherein said molybdenum-manganese layer has a thickness essentially in the range of from 0.0003 inch to 0.001 inch and said nickel layer has a thickness essentially in the range of from 0.0005 inch to 0.002 inch.
Claim 7
Dependent Claim
75 words
A gas laser according to claim 2 wherein said means for providing an electrically conductive path includes an extension of said metal coating around the end of said tubular body away from said cylindrical body and over a recessed annular portion of the outer lateral surface of said tubular body adjacent said end thereof, and an electrically conductive sleeve brazed to the portion of said coating extending over said recessed portion of said tubular body.
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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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |