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:
Feb. 16, 1982
Filed:
Dec. 31, 1979
Fredrick J Balfanz, Waukesha, WI (US);
C-R-O, Inc., Menomonee Falls, WI (US);
Abstract
A welding machine for use in connection with seam welding a pair of metal parts which are positioned to form a welding groove, and wherein the groove width undesirably varies at random due to improper part positioning or deviations from desired tolerance. The weld head is moved along the groove by a drive motor and is preceeded by a pair of fixedly connected sensing probes. The primary probe follows the groove wall portion of one of the parts, while an auxiliary probe follows a surface on the other part. Variations in groove width cause variations in the distance between the two probe tips, said latter variations being utilized to automatically change the speed of the weld head drive motor.