Electric motor drive unit
Patent 4318573 Issued on March 9, 1982. Estimated Expiration Date: 
April 23, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 23, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3302048 3319098 3463951 Self-aligning bearing with a split inner member Drill bushing and similar article Patent #: 4087137 InventorAssigneeApplicationNo. 06/142896 filed on 04/23/1980US Classes:384/192Self-adjusting or self-aligningExaminersPrimary: Footland, Lenard A.Attorney, Agent or FirmInternational ClassesF16C 35/02 (20060101)F16C 35/00 (20060101) H02K 7/08 (20060101) H02K 7/116 (20060101) E05F 15/16 (20060101) H02K 5/14 (20060101) AbstractAn electric motor drive unit for driving a worm wheel such as for vehicle window regulator applications wherein a casing housing a rotatable armature utilizes a synthetic plastic end cap at one end, and a worm wheel housing constitutes the motor end cap at the other end. A worm shaft rotatably mounted within the wheel housing upon its own radial and thrust bearings interconnects to the motor armature through a self-aligning drive element extending through a thrust bearing defined in the worm wheel housing. The brush holders for the motor are homogeneously formed of synthetic plastic material upon the associated end cap, and the armature utilizes an inexpensive self-aligning bearing mounted within the end cap and worm wheel housing. | |
