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:
May. 08, 2001
Filed:
Dec. 23, 1999
Monika Abrell, München, DE;
Olaf Hunger, Schaffhausen, CH;
Jörg Peter, Hinwil, CH;
Lukas Zehnder, Baden-Dättwil, CH;
Christian Dähler, Farmington, CT (US);
Asea Brown Boveri AG, Baden, CH;
Abstract
An automatically resetting safety valve for a generator circuit breaker is to open rapidly and wide, even if the pressure applied to a valve-closing body (,) does not increase substantially over a valve stroke (a) or even falls. In order to ensure this, a valve-closing-body joint (,) of the valve-closing body (,) via a first closing-body lever (H,) and via a first sliding joint (,), is connected in an articulated manner to a first support lever (H,), which is rotatably mounted in a first support lever joint (,) fastened to a lever wall (,). The first sliding joint (,), via a first compression spring (,), is in compressive connection with a spring wall joint (,) fastened to a spring wall (,). The valve-closing body (,) is movable along a plain-bearing axis (A). First and second closing-body levers (H,, H,′) and first and second support levers (H,, H,′), which are arranged in mirror image relative to the plain-bearing axis (A) of the valve-closing body (,), may be provided. Instead of an outer compression spring (,), an inner tension spring (,) may be provided.