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. 21, 1978
Filed:
Apr. 06, 1976
Owen Farish, Bearsden, Glasgow, SC;
Richard L Hundstad, Wilkinsburg, PA (US);
John L Pack, Murrysville, PA (US);
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Abstract
A gas laser system with moderate speed gas glow through the optical cavity to facilitate D.C. excitation of the gas to lasing levels. An electrode assembly is positioned so as to provide a glow discharge transverse to the optical axis within the optical cavity when a high D.C. voltage is applied thereto. By maintaining the high rate of flow of gas through the cavity, the glow discharge is stabilized while the gas medium is maintained at high pressure. Proper choice of electrode geometry and flow rate of the gas through the optical cavity allows the laser system to operate at pressures from a few Torr to atmospheric pressure and above thereby producing a high power CW output.