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:
Mar. 02, 1982
Filed:
Oct. 14, 1980
Robert J Sabon, Chicago, IL (US);
GTE Automatic Electric Labs Inc., Northlake, IL (US);
Abstract
A contactless electromagnetic relay employing at least two magnetically activated electronic switches comprising a coil for generating a field of magnetic flux in response to an electrical current and a pair of magnetic circuits for conveying the flux to the switches. A first switch is 'normally on' and a second 'normally off' when no flux is generated by the coil, providing a first switching state. A second switching state is achieved by the relay when the coil generates a magnetic flux sufficient to turn off the first switch and turn on the second switch. Each magnetic circuit includes an adjustable core for increasing or decreasing the amount of flux delivered to each switch.