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:
Nov. 01, 2016
Filed:
Feb. 27, 2014
Bradley J. Stone, Port Washington, WI (US);
Jason Senfleben, Hartford, WI (US);
Paul J. Maly, Mequon, WI (US);
Bradley J. Stone, Port Washington, WI (US);
Jason Senfleben, Hartford, WI (US);
Paul J. Maly, Mequon, WI (US);
RITE-HITE HOLDING CORPORATION, Milwaukee, WI (US);
Abstract
Example vehicle restraint apparatus and methods of operating the same are disclosed herein. An example vehicle restraint includes a main body proximate a dock, a vehicle restraint drive unit, and a barrier coupled to the vehicle restraint drive unit and the main body. The barrier is movable relative to the main body between an extended position, a retracted position, and a plurality of intermediate positions between the extended position and the retracted position. A sensor provides a plurality of position feedback signals corresponding to a plurality of sensed positions of the barrier when the barrier moves along the plurality of intermediate positions. A controller receives the plurality of position feedback signals, performs a plurality of comparisons of the plurality of position feedback signals with a stored reference, and generates an output signal based on the compared value.