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, 1982
Filed:
Apr. 28, 1980
Applicant:
Inventors:
William S Swindall, Cambridge, CA;
Anil Mahyera, Salt Lake City, UT (US);
Assignee:
Joy Manufacturing Company, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25D / ;
U.S. Cl.
CPC ...
173131 ; 60583 ;
Abstract
A hydraulic impactor having a reciprocating piston, a liquid coupling having a stepped bore and an actuatable driven member of a configuration to obtain the optimum energy transfer to the driven member.