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:
Oct. 15, 2002
Filed:
Nov. 13, 2000
SMC Corporation, Tokyo, JP;
Abstract
A gate for opening and closing an opening of a chamber is fixed to a top end of an arm swung between a position facing the opening and a retreating position on the side thereof. A base end of the arm is supported by an output shaft of a fluid pressure cylinder driven in parallel with a direction in which the gate comes into contact with and is separated from the opening and a cam follower fit in a guide groove of a machine frame is provided at the base end of the arm The guide groove is formed by an axial-direction groove for carrying the gate at the position facing the opening and then moving it when the gate is located at a position in the vicinity of the opening of the chamber and a slant-periphery direction groove connected thereto for retreating the gate to the side of the opening.