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. 10, 1987
Filed:
Jul. 27, 1984
Nobuhiro Takeda, Aichi, JP;
Masaichi Hattori, Aichi, JP;
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Abstract
A power supply circuit for a vehicle for providing power to motorized accessories, such as power windows and sun roofs, even after the vehicle ignition has been switched off. The power supply circuit includes a relay having relay contacts for delivering power to the accessory drive motor, and a relay coil which is energized upon switching on of the vehicle ignition. The relay is self-holding and continues to be energized even after the ignition has been switched off. However, when a door of the vehicle is opened, as detected by the closing of a door switch, the relay coil is de-energized and power to the accessory drive motor is terminated. In an alternative embodiment, power to the accessory drive motor is not terminated until after sequential opening and closing of a vehicle door.