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.

Date of Patent:
May. 02, 1978

Filed:

Jul. 05, 1977
Applicant:
Inventors:

Min-Chung Jon, Cranbury, NJ (US);

Charles Andrew Keskimaki, Plainsboro, NJ (US);

Assignee:

Western Electric Co., Inc., New York, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73587 ;
Abstract

Stress wave emission signals emanating from a weld during an AC welding operation are detected during (1) the time when the AC power is on, (2) the post weld time period, and (3) during each half-cycle of the AC weld when the absolute magnitude of the current is decaying. The stress wave emission signals are counted in each of these periods and compared to predetermined ranges of values to determine the acceptability of the weld.


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Jon, Min-Chung. (1978). Method and apparatus for determining the acceptability of a weld formed (U.S. Patent No. 4086817). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4086817

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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