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. 16, 2009
Filed:
Dec. 27, 2006
David Parker, Shelby, NC (US);
Kurt T. Zarbock, Advance, NC (US);
David Parker, Shelby, NC (US);
Kurt T. Zarbock, Advance, NC (US);
Tyco Electronics Corporation, Middletown, PA (US);
Abstract
A first aspect of the invention includes a power relay assembly having a motor assembly and actuator assembly disposed in a housing. The actuator assembly includes at least one bridge assembly having one or more contacts arranged to provide selective electrical connections. The actuator assembly is attached to an armature of the motor assembly. The armature is arranged and disposed to drive the actuator assembly. The motor assembly includes an electromagnetic coil assembly disposed around at least a portion of the armature. A magnetic pole piece is configured adjacent to an end of the coil assembly. The pole piece includes an armature seat configured to attract and receive the armature when the coil assembly is magnetized. The armature seat has a taper configured to provide a substantially constant attractive force along the stroke length.