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. 24, 1980
Filed:
Oct. 19, 1977
Ruben D Garzon, Malvern, PA (US);
Gould Inc., Rolling Meadows, IL (US);
Abstract
A high power a-c circuit breaker having substantially no arcing during interruption consists of two identical switching circuits in series which each include a main high speed switch connected in parallel with a series-connected diode and high speed isolating switch. The diodes of each of the switching circuits oppose one another in polarity. Current flow through the circuit breaker is normally through the closed main high speed switches. A polarity-sensitive operating circuit is provided to open the appropriate high speed switch just before a current zero and to transfer forward current through its related diode. This diode blocks a current reversal, and the associated series-connected isolating switch is opened just after current is commutated into the diode, and at or before the current zero time is reached and while the diode is blocking. Voltage distributing capacitors and non-linear resistors are connected in parallel with and distribute the voltage between the series-connected isolator switches and diode. A single one of the two identical switching circuits can be used for application to d-c circuits or for discharge currents having a single polarity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile