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:
Jun. 06, 1995
Filed:
May. 18, 1993
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A safety device for a power window which, if one's hand or neck is caught between the window glass and the sash, detects such state instantaneously and accurately to perform a safety control operation. Respective detectors detect the absolute and relative speeds of a power window opening or closing operation to determine whether or not a foreign object is caught in the window. When at least one of the detectors detects a foreign object being caught in the window, a safety control operation is carried out, for instance, stopping the movement of the window glass. Since the absolute speed and the relative speed are utilized in combination, a dangerous state can be detected instantaneously and accurately. Also, backlash in the drive mechanism for the window can be detected, and the safety control operation inhibited during such times to prevent erroneously effecting a safety control operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile