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:
Jun. 26, 2001
Filed:
Feb. 18, 2000
Rodney Kramer, Snellville, GA (US);
Siemens Energy & Automation, Inc., Alpharetta, GA (US);
Abstract
The circuit breaker of the present invention is a molded case circuit breaker,having a moving contact,and crossbar assembly comprising a crossbar,having a formation pivotally mounted in the circuit breaker housing,with the formation having two spaced apart sidewalls,, with each sidewall,having a first cam surface,, a cam node,, a second cam surface,and a bearing surface,. Mounted in the formation, between the sidewalls,, is a moving contact arm assembly,that is mechanically coupled to the circuit breaker operating mechanism,and electrically coupled to the load terminal,of the circuit breaker,. The moving contact and crossbar assembly,comprises a movable contact arm,coupled to a pivot pin,positioned between the sidewalls,and in rotational contact with a bearing surface,of each sidewall,. The movable contact arm,is also provided with a roller pin,slidingly mounted in a slot in the arm with the roller pin,in operative contact with the first and second cam surfaces,of the sidewalls,. A contact arm pressure spring,is coupled to the pivot pin 818 and the roller pin,with the contact arm pressure spring,providing the force to keep the movable contact arm,in the “ON” position. The crossbar and the moving contact arm assembly,rotates on a common axis coincident with the pivot pin,. The movable contact arm,has a first end,and a second end,and includes a first member,and a second member,, with each member configured to define an open space,between the members at the first end,and coupled together at the second end,. The contact arm pressure spring,is mounted within the open space,between the two members of the movable contact arm,. One embodiment of the present invention provides for a one piece crossbar and formation.