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:
Jan. 19, 1988
Filed:
Sep. 18, 1986
Applicant:
Inventors:
Dwight A Blaser, Fraser, MI (US);
Kestutis P Nemanis, Redford Township, Wayne County, MI (US);
James J Zik, Rochester, MI (US);
Edward C Hess, Farmington Hills, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73592 ; 73 40 ;
Abstract
Seals in an automotive body are inspected for leaks by sensing ultrasonic energy passing through a seal. Either of an ultrasonic emitter or detector is scanned along a seal outside the body by a robot and the other is inside the body. The emitter operates at frequencies of 65 to 80 kHz and repetitively sweeps through a range of 6 kHz. The body may be either open or closed.