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.

Date of Patent:
Oct. 22, 1991

Filed:

Dec. 04, 1989
Applicant:
Inventor:

William E Anstine, North Canton, OH (US);

Assignee:

Ametek-Lamb Electric, Kent, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 90 ; 384903 ; 29596 ; 310 42 ;
Abstract

A snap ring is provided for receipt within a circumferential groove of a bore to maintain a motor shaft and bearing assembly within a housing. The ring has an open sector to allow for flexibility. In one embodiment, a number of lobes, defined by tapered inwardly declining surfaces extend from the ring and protrude from the groove into the bore. As a bearing is urged past the groove, the lobes are urged into the groove to allow the bearing to pass. Once the bearing has cleared the groove, the spring-like nature of the ring causes the lobes to again extend into the bore such that bottom surfaces of the lobes engage a top surface of the bearing, retaining the bearing and shaft assembly within the bore. In another embodiment, the ring has a number of lobes defined by tapered outwardly declining surfaces, while a third embodiment includes lobes defined by alternating inwardly and outwardly tapered declining surfaces.


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