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:
Oct. 19, 1982
Filed:
May. 15, 1980
Applicant:
Inventor:
Thomas A Gross, Lincoln, MA (US);
Assignee:
Jet Spray Corp., Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361100 ; 3072 / ; 3072 / ; 323351 ; 361 58 ;
Abstract
A bidirectional semiconductor switch such as a Triac in the usual failure mode, wherein the device conducts continuously in only one direction, has a storage circuit in series intermediate the triac and load. The storage circuit may comprise a single capacitor preferably of predetermined value and adapted to, after a relatively short time-out period, interrupt power applied to the load. The capacitor is preferably a non-polar type, although, in an alternate embodiment a pair of oppositely-poled polar capacitors may be employed.