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:
Dec. 04, 2007
Filed:
Jul. 12, 2005
Adrian W. Lim, North Attleboro, MA (US);
Russell P. Brodeur, Rehoboth, MA (US);
Adrian W. Lim, North Attleboro, MA (US);
Russell P. Brodeur, Rehoboth, MA (US);
Sensata Technologies, Inc., Attleboro, MA (US);
Abstract
An enclosed motor protector has a housing formed by a base () and a cover () received on the base and enclosing a recess () formed in the base. A first terminal () extends through an opening in the housing and mounts a stationary contact () within the recess. An elongated movable contact arm () is cantilever mounted at one end in the recess and mounts a second movable contact () on a free end of the arm which is adapted to move into and out of engagement with the stationary contact. A heater () is mounted in the recess in heat transfer relation with a snap acting thermostatic disc () disposed adjacent to the movable contact arm so that upon reaching a preselected temperature the disc will snap from one dished configuration to an opposite dished configuration with its motion transferred to the movable contact arm to move the contacts out of engagement. The cover is formed with a first multiple wall barrier () in the form of a triangular body when seen in a lateral cross section closing a first terminal receiving opening and a second multiple wall barrier () closing a second terminal receiving opening to interrupt the travel of arcs and the inlet of explosive gas to the enclosure. These features also diminish air supply in the enclosure to thereby weaken any combustion.