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. 12, 1994
Filed:
Jan. 24, 1992
Applicant:
Inventors:
Timothy Dearnley, Huddersfield, GB;
Simon Gazzard, Skipton, GB;
Assignee:
AE Piston Products Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
92222 ; 92223 ; 92231 ; 92260 ; 1231936 ; 2988804 ; 29888042 ; 29888044 ; 29888049 ;
Abstract
Pistons and a method for their manufacture are described. The piston has at least one piston ring groove reinforcing member being annular in form and having, in cross-section, upper and lower, generally radially extending face portions and a radially inner, generally axially extending face portion between the two generally radially extending face portions, the generally axially extending face portion being coated with particulate material by a physical vapor deposition technique, to provide a porous adhesion assisting layer.