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:
Sep. 28, 1993
Filed:
Aug. 01, 1991
Tadayoshi Ooshima, Hiroshima, JP;
Haretaro Hidaka, Hiroshima, JP;
Yoshihiro Tsuchimoto, Tokyo, JP;
Naoya Shimizu, Chiba, JP;
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Asahi Glass Company Ltd., Tokyo, JP;
Abstract
A transfer system includes an air table, and a linear motor cooperating with the air table to float and move a pallet. The transfer system is designed to allow for a small radius of curvature for each turning section of the air table. Ball valves of the air table are openable upon contact with a pallet to apply air under pressure to a pallet. A linear motor is adapted to move the floating pallet, and guides are provided to guide the moving floating pallet. The pallet includes a pallet body made of a light material, and an external load part made of metal. The external load part has a lower surface projecting slightly from the lower surface of the pallet body. Guides are mounted to the outer periphery of the pallet body. A linear motor secondary conductor is mounted to the lower surface of the pallet body.