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:
Sep. 15, 1981
Filed:
Jun. 28, 1979
Applicant:
Inventors:
Godwin L Noell, Winsted, CT (US);
Paul L Haynes, Jr, Pleasant Valley, CT (US);
Assignee:
Chandler Evans Inc., West Hartford, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04C / ; F04C / ;
U.S. Cl.
CPC ...
418 78 ; 418102 ; 418131 ;
Abstract
A gear pump suitable for pumping contaminated fuel has a lubrication passage in a pump bearing which receives fuel from the clearance volume between the bearing and the housing in the pump discharge arc. The clearance entrance between the bearing and the housing, which functions as a filter, is smaller than the passage so that contaminants traversing the clearance will not obstruct the passage. Since only contaminants smaller than the clearance entrance can enter the passage, the passage may be made sufficiently small so as not to adversely affect pump performance.