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:
Oct. 02, 2007
Filed:
Nov. 23, 2004
Steven N. Ernest, Windsor, CT (US);
Bai Hua, Milpitas, CA (US);
John Lester, West Hartford, CT (US);
Steven N. Ernest, Windsor, CT (US);
Bai Hua, Milpitas, CA (US);
John Lester, West Hartford, CT (US);
Jacobs Vehicle Systems, Inc., Bloomfield, CT (US);
Abstract
An electromagnetic retarder system is disclosed. In one embodiment, the retarder system comprises: a shaft; a coil statically disposed on the shaft and having a hollow cylindrical shape; a yoke statically disposed on the shaft, the yoke having a first cylindrical surface and a second cylindrical surface, the second cylindrical surface disposed coaxial with said coil; at least one claw pole rotor mounted on the shaft, the at least one claw pole rotor formed of magnetic half wheels that taper into claws; and an induction drum disposed coaxial with the shaft and mounted so as to encompass the coil, the yoke and the at least one rotor.