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:
Dec. 11, 1979
Filed:
May. 19, 1977
Applicant:
Inventors:
Earl E Frank, Tallman, NY (US);
Bing S Yee, Paramus, NJ (US);
Assignee:
Abex Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138 31 ; 2771 / ;
Abstract
An accumulator comprising a cylinder and piston in which the front end of the piston is characterized by two spherical zones separated by a chordal zone while the opposed end wall of the cylinder is concave having a slope substantially the same as said chordal zone; the piston seal is an elastomeric ring supported on each side.