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:
Nov. 04, 2003
Filed:
Apr. 02, 2002
Applicant:
Inventor:
Donald John Enzinna, Lockport, NY (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 4/900 ;
U.S. Cl.
CPC ...
H02K 4/900 ;
Abstract
An automatically acting braking system for a stepper motor ( ) of the type having a rotor ( ) that is radially centered within a stationary stator ( ) and which rotates about the central axis of a central shaft ( ). The rotor ( ) is allowed to axially slide back and forth, biased in one direction continually by a resilient means ( ). When the stator ( ) is energized, it pulls the rotor ( ) to an axially centered position within stator ( ), but when it is de energized, the resilient means ( ) pushes the rotor ( ) to one side, lockingly engaging its teeth ( ) with the teeth ( ) of a fixed locking ring ( ).