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:
Apr. 15, 2014
Filed:
Nov. 18, 2011
Applicant:
Cameron L. Woodson, Cedar Rapids, IA (US);
Inventor:
Cameron L. Woodson, Cedar Rapids, IA (US);
Assignee:
Schneider Electric USA, Inc., Palatine, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 3/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pressure sensitive circuit breaker trip unit has a case forming a gas receiving cavity and a cavity accommodating movement of an actuator body with a trip lever. The actuator is moved by pressure of circuit interruption gases entering the gas receiving cavity. The actuator body has a hollow therein for accepting the interruption gases and accompanying hot debris thereby reducing any fouling of the movement accommodating cavity which may impede movement of the actuator body on subsequent circuit interruptions.