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. 11, 2016
Filed:
Apr. 25, 2013
Alstom Technology Ltd., Baden, CH;
Peter Von Allmen, Buchs, CH;
Benoît De Lussy, Zurich, CH;
ALSTOM TECHNOLOGY LTD, Baden, CH;
Abstract
A circuit breaker has a stationary contact and a movable contact, and an actuator device for actuating it comprises a rigid drive shaft () that drives the movable contact, first resilient means for driving the movable contact, and a torsion bar () for driving the drive shaft, the torsion bar () being suitable for being deformed in twisting in order to assist the resilient means during an initial period while opening the contacts of the circuit breaker. The torsion bar () is housed inside the drive shaft (). A first end () of the torsion bar () is constrained to turn with a ring (). A second end () of the torsion bar () is constrained to turn with the drive shaft ().