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:
Jun. 03, 1980
Filed:
May. 17, 1978
Applicant:
Inventors:
Assignee:
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
367 96 ; 367104 ; 367117 ; 73625 ;
Abstract
The welding seam of a pipe is located by means of ultrasonic transducers and echo pulses responding particularly to rather minute distance differences on account of the convex contour of the seam and its elevation above the continued contour of the unmodified parts being welded together. A two or a three transducer configuration is used.