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:
Mar. 08, 2005
Filed:
Oct. 29, 2002
Kazuhito Yokomori, Yamanashi-ken, JP;
Takuya Imai, Yamanashi-ken, JP;
Kazuhito Yokomori, Yamanashi-ken, JP;
Takuya Imai, Yamanashi-ken, JP;
Mitsui Kinzoku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
The present device has a wire drum connected to a sliding door through a wire cable and being rotated by the power of a motor, an electromagnetic brake which applies braking to the wire drum using a solenoid as the driving source, and a switch transistor which sends electricity to the solenoid when being turned on by a Hi signal from the output port of a controller. The interval between the solenoid and the switch transistor is connected through a line where the voltage level is raised when the switch transistor is turned off and the voltage level is lowered when the switch transistor is turned on. The line is connected through a failure detecting circuit to the input port of the controller.