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:
Feb. 12, 1985
Filed:
Nov. 09, 1982
Applicant:
Inventors:
Wellington J Walker, Kensington, CT (US);
George M Whitehouse, deceased, late of Wallingford, CT (US);
Assignee:
LFE Corporation, Waltham, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
74625 ; 74527 ; 74570 ; 403355 ; 417374 ;
Abstract
A two mode operable piston pump has a cam lock with a shaft biased into the drive axial passage of a cam shaft to lock the cam shaft to a lever body, a lock edge on the lever body engaging a flat on a head portion of the cam lock. Inserting a power tool into the drive axial passage opposite the head pushes the shaft up and releases the cam shaft for operation of the pump in a power mode.