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:
Apr. 28, 1992
Filed:
Jul. 26, 1991
Applicant:
Inventors:
Wolfgang Welsch, Baldham, DE;
Hans Krueger, Munich, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ; H01J / ;
U.S. Cl.
CPC ...
445-2 ; 445-3 ; 445 28 ; 445 43 ;
Abstract
A method of manufacturing gas lasers, such as He-Ne lasers or Ar lasers characterized by positioning the laser housing within a vacuum chamber, evacuating the vacuum chamber to evacuate the laser housing through a filling tube provided in the housing, baking the housing, then filling the vacuum chamber with the laser gas, which enters into the laser housing through the filling tube, subsequently forming a solder closure in the end of the sealing tube, the removing the laser housing from the vacuum chamber and subsequently permanently sealing the filling tube by pinching off the solder closure to form a cold-weld seal of the tube.