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. 28, 1985
Filed:
Oct. 21, 1983
Yutaka Shigemura, Hyogo, JP;
Hiroshi Kimura, Osaka, JP;
Masahiko Hisajima, Osaka, JP;
Shinobu Satonaka, Osaka, JP;
Seiji Kaminaga, Chiba, JP;
Mitsuya Ishito, Osaka, JP;
Mita Industrial Company Limited, Osaka, JP;
Abstract
An apparatus for regulating the movement of a movable member includes a drive device for moving the movable member in a first direction from a rest position to an operative position and for moving the movable member in a second direction, opposite to the first direction, from the operative position toward the rest position. A first detector detects the presence of the movable member at the rest position. A second detector detects the presence of the movable member at a location adjacent the rest position but upstream thereof with respect to the second direction. A control arrangement is operatively connected to the drive device and to the first and second detectors to operate the drive device to move the movable member in the first direction and then in the second direction, to stop the drive device upon detection of the movable member moving in the second direction at the location by the second detector, whereafter the movable member continues movement by inertia in the second direction from such location to the rest position and is detected thereat by the first detector, and too, if the movable member is not detected at the rest position by the first detector within a predetermined time period after the detection by the second detector, again starting the drive device to move the movable member in the second direction until detection thereof by the first detector.