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. 18, 1991
Filed:
Dec. 02, 1988
Applicant:
Inventor:
Rodney L Derbyshire, Menlo Park, CA (US);
Assignee:
Metcal, Inc., Menlo Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219200 ; 1562724 ;
Abstract
A blind rivet or bolt is rendered fluid tight by applying heat activated sealant to some or all of the surfaces of the rivet that contact surfaces of the structure into which the rivet is inserted. The sealant is activated by a temperature self regulating heater formed by applying ferromagnetic material to appropriate locations on the rivet and heating the ferromagnetic material by an energizing structure associated with the rivet actuation tool, the structure depending upon whether the heater is activated by flux coupling from a coil or by ohmic heating.