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:
Feb. 11, 1997
Filed:
Nov. 22, 1994
Hiroyuki Shinozaki, Kanagawa-ken, JP;
Fumio Kondo, Kanagawa-ken, JP;
Satoshi Mori, Kanagawa-ken, JP;
Masao Matsumura, Kanagawa-ken, JP;
Takeshi Yoshioka, Kanagawa-ken, JP;
Ebara Corporation, Tokyo, JP;
Abstract
A positioning system stops a transport car traveling along a transport path at a predetermined stop position. The system includes a pair of members coupled together by a magnetic attraction force. One of the members is disposed at the stop position, while the other of the members is disposed on the transport car, and at least one of the members is attached to the stop position or the transport car through a damper. Alternatively, the system may include two pairs of members coupled together by a magnetic attraction force, in which one of each pair of the members is disposed at the stop position, while the other of each pair of the members is disposed on the transport car, and one member of one of the pairs of members is attached to a guide mechanism which restricts a direction of movement of the one member attached to the guide mechanism caused by the action of magnetic attraction force between the members. Thereby, vibration of the transport car upon stoppage at the stop position is transmitted to the damper or guide mechanism and damped by damping action of the damper or frictional loss in the guide mechanism.