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:
Dec. 31, 2013
Filed:
Dec. 19, 2011
Timothy Cotton, Milwaukee, WI (US);
Jonathan Andersen, Grafton, WI (US);
Kurt Lessard, S. Milwaukee, WI (US);
Ben Wieberdink, Cedar Grove, WI (US);
Timothy Cotton, Milwaukee, WI (US);
Jonathan Andersen, Grafton, WI (US);
Kurt Lessard, S. Milwaukee, WI (US);
Ben Wieberdink, Cedar Grove, WI (US);
Rite-Hite Holding Corporation, Milwaukee, WI (US);
Abstract
A vehicle restraint restricts the movement of a vehicle at a loading dock by engaging the vehicle's RIG (rear impact guard). The vehicle restraint includes a barrier carried by a vertically translatable track follower, the barrier being driven by a motor or some other type of power unit. A RIG sensor detects the RIG's horizontal position relative to the barrier and can periodically energize the motor to maintain the barrier in generally continuous contact with the RIG, even if the RIG moves horizontally away from the barrier. Detection of such horizontal movement of the RIG triggers the barrier to move accordingly to reduce a horizontal gap that may have formed between the RIG and the barrier.