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. 21, 1978
Filed:
Sep. 16, 1976
Applicant:
Inventors:
Marc Combette, Valence (Drome), FR;
Jean Ollivier, Valence (Drome), FR;
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B25C / ;
U.S. Cl.
CPC ...
227 10 ; 60636 ; 74531 ; 92167 ; 188 67 ;
Abstract
The device comprises on the front end portion of the plunger or piston a retaining ring mounted in the barrel with the interpositioning of a joint in such a way that the bore of the ring is slightly off-center relative to the piston axis when the joint is not deformed.