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:
Dec. 08, 1981
Filed:
May. 28, 1980
Applicant:
Inventor:
James R Gramse, Spring Valley, CA (US);
Assignee:
Chem-Tronics, Incorporated, El Cajon, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
2191 / ; 219121 ; 2191 / ; 2191 / ;
Abstract
Optical workpiece viewing systsms and associated apparatus for electron beam welders and other workpiece processing machines which generate metal vapors. The subject systems have replaceable shields which keep the optical components of the system from being coated by condensation of vapors generated during the welding operation, and the associated apparatus includes an arrangement for changing shields as they become clouded which reduces to a small fraction the time conventionally required for that purpose. Workpiece processing machines with optical viewing system and related apparatus of the character just described.