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:
Aug. 26, 1980
Filed:
Jul. 10, 1978
Applicant:
Inventor:
Harvey C Rettberg, Pickens, SC (US);
Assignee:
The Singer Company, Stamford, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 89 ; 310 50 ; 310 58 ;
Abstract
A housing for a power tool having an access aperture for mounting the brushes of a universal motor which is journaled in the housing. Tabs hold the brushes within a recess, and screws are threadedly connected to the housing to clamp the tabs. A cover is substantially 'U' shaped and has posts extending inwardly in superposition to the screws to prevent the screws from backing out due to vibration or other loosening thereof. The cover fits between an upper and a lower housing extension and provides a smooth continuous outer configuration, through which vent slots permit the passage of cooling air.