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:
Feb. 17, 2009
Filed:
Sep. 30, 2005
Applicant:
Jeffrey Alan Kilburn, Hartland, WI (US);
Inventor:
Jeffrey Alan Kilburn, Hartland, WI (US);
Assignee:
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 73/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The trip unit of a circuit breaker provides overload protection for a contactor used to energize a load such as a motor while still providing conventional protection for the wiring serving the motor. The trip unit of the circuit breaker eliminates the need for a separate overload relay by generating a pre-trip signal that opens the contactor when the circuit breaker It long delay function reaches a selected percentage, such as about 85%, of the trip value.