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:
Apr. 10, 1990
Filed:
May. 12, 1988
Applicant:
Inventors:
James K Bogard, Renton, WA (US);
Michael J Katzer, Seattle, WA (US);
Diane L Heidlebaugh, Seattle, WA (US);
Assignee:
The Boeing Company, Seattle, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324536 ; 3461 / ; 324538 ;
Abstract
A method and apparatus for testing arcing and/or sparking of a fastener installed in a carbon fiber composite (CFC) panel. The fasteners are installed in a test panel which is attached to a light-tight enclosure including a camera. Current is injected to the fasteners through current injection tabs attached to each of the fasteners from the outside of the enclosure. As the current level injected from a current source is varied, the camera records images of the manner in which electrical arcing and/or sparking occurs between the fastener and the test panel.