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:
May. 08, 1984
Filed:
Mar. 10, 1982
Applicant:
Inventor:
Tetsuo Kato, Kanagawa, JP;
Assignee:
Tokico Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65B / ; F16F / ;
U.S. Cl.
CPC ...
141-4 ; 267 6428 ; 18832221 ;
Abstract
A cylinder device including a main body defining a cylinder therein, a cap member secured to the main body for closing one end of the cylinder, a piston working in the cylinder and having a piston rod passing through the cap member to project out of the main body, and a seal member surrounding the piston rod and being urged to abut with the inner surface of the cap member. There is provided a cavity between the cap member and the seal member, and an opening formed in the cap member for communicating the cavity with the outside.