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:
Oct. 05, 1976
Filed:
Feb. 20, 1975
Applicant:
Inventors:
Kurt Holger Andersson, Tyreso, SW;
Carl Gosta Ekwall, Saltsjobaden, SW;
Bo Erik Forsberg, Tyreso, SW;
Sven Ingemar Johansson, Saltsjo-Boo, SW;
Assignee:
Atlas Copco Aktiebolag, Nacka, SW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B / ; F01L / ;
U.S. Cl.
CPC ...
91 46 ; 91319 ; 91325 ; 92 865 ; 9216 / ; 92166 ;
Abstract
An impact motor has a reciprocating piston that has its piston rod guided in bushings in the housing. The bushings are lubricated by oil-loaded compressed air but the piston is forced to reciprocate by oil-free compressed air.