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. 14, 1999
Filed:
Sep. 08, 1998
Mitsuo Masuda, Yawara-mura, JP;
Hiroyuki Shimono, Yawara-mura, JP;
SMC Corporation, , JP;
Abstract
A cylinder with a speed control mechanism wherein in a transfer stroke, a piston is smoothly accelerated or smoothly decelerated at an initiation or termination end of the stroke by controlling the speed of the piston, whereas in a return stroke, the speed of the piston is not controlled, thereby reducing the time required for the return stroke. A bypass passage bypassing longitudinal grooves for flow control provided on a cushion ring (74) is formed in a passage which provides communication between the outside and a main passage or a cylinder chamber (71, 72). A check valve (78A, 78B) is disposed in the bypass passage to allow a fluid to flow through the bypass passage only during the return stroke of the piston (6).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile