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. 27, 1979
Filed:
Oct. 11, 1977
Lynn O Grunewald, Cudahy, WI (US);
Steven J Hipp, Milwaukee, WI (US);
Rite-Hite Corporation, Cudahy, WI (US);
Abstract
A hydraulically actuated device secures the back end of a truck against a surface of a loading dock during loading and unloading of the truck. The device includes a self-aligning hydraulic cylinder which is adjustably mounted on the loading dock, and a piston mounted within the cylinder and having an exposed portion to which an attaching means is connected. The attaching means is adapted to be releasably connected to the truck. Control means is provided for directing hydraulic pressure to the cylinder so as to effect movement of the piston in one direction whereby the attaching means exerts a pulling force on the truck to cause the latter to be secured against the loading dock surface, or in a second direction whereby the attaching means assumes a position wherein it may be disconnected from the truck. Signal means, responsive to hydraulic pressure, is provided to indicate when hydraulic pressure is being, or not being, exerted on the piston.