The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 1987
Filed:
Apr. 05, 1985
Applicant:
Inventor:
Kang R Chun, Pacific Palisades, CA (US);
Assignee:
Northrop Corporation, Hawthorne, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 58 ; 372 55 ; 372 33 ;
Abstract
A pulsed electrical discharge gas laser uses acoustic diodes to cause the gas to circulate between the active region of the laser and a gas heat exchanger. The diodes take the form of asymmetrical obstacles placed within the gas flow exhibit asymmetrical resistance to the passage of compression waves in the gas that are generated by the electrical discharge and, as a consequence, cause a net flow of gas in one direction through the obstacles, thus causing the gas to circulate from the active region of the laser through the gas heat exchanger and return. A series of columns having cup-shaped cross sections act as the acoustic diodes.