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:
Jan. 14, 1992
Filed:
Jan. 04, 1991
Applicant:
Inventors:
Richard A Schultz, Tecumseh, MI (US);
Todd W Herrick, Tecumseh, MI (US);
Assignee:
Tecumseh Products Company, Tecumseh, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417550 ; 417552 ; 13751621 ; 92255 ; 92 59 ;
Abstract
The present invention is a retainer for a piston and valve subassembly of a scotch yoke compressor and a method of assembling it. The subassembly is comprised of a piston head, a suction valve, a spacer, a stop washer, and a rod held together by a retainer. The suction valve is assembled on the rod, then the rod is inserted into the piston head. Next the retainer is installed on an end of the rod for frictionally engaging the piston and rod, thus axially securing the suction valve and the rest of the piston head subassembly during assembly to the yoke.