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:
Nov. 12, 1991
Filed:
Oct. 01, 1990
Akira Oi, Amagasaki, JP;
Keitaro Yonezawa, Amagasaki, JP;
Kabushiki Kaisha NERIKI, Amagasaki, JP;
Abstract
An attachment of a gas charger for a gas container is adapted to be mounted to a valve device with a check valve and to be used for forcedly opening a spring-closed type check valve by means of a charging pressure of a fresh gas. The attachment is provided with a gas charging mouthpiece detachably secured to a valve box of the valve device, a piston supporting member movable together with the gas charging mouthpiece, and a valve-opening piston. The valve-opening piston is sealingly supported by the piston supporting member in such a condition as being freely movable in the diametrical direction and is detachably sealingly fitted into a received pressure removing cylinder room of a check valve member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile