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:
Apr. 20, 1976
Filed:
May. 10, 1974
Applicant:
Inventors:
Robert L Lochmann, Grand Blanc, MI (US);
Daniel C MacManus, Owosso, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; F01B / ;
U.S. Cl.
CPC ...
92113 ; 92 94 ; 92100 ; 92129 ; 417471 ; 29525 ;
Abstract
A push rod and tappet assembly for a cam actuated pump in which a tappet having a barbed shank is lightly press fitted, during assembly, part-way into the hollow end of the push rod so that during the initial operating cycle of the pump, as the cam on which the tappet rides rotates through the first cycle of rotation, the pump piston to which the push rod is connected bottoms out and the shank of the tappet will then be forced further into the push rod to a position to thereafter provide substantially zero clearance in the pump.