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. 17, 2013
Filed:
Oct. 17, 2012
Timothy K Searfoss, West Branch, MI (US);
Timothy K Searfoss, West Branch, MI (US);
Roll-Rite, LLC, Alger, MI (US);
Abstract
A hydraulic brake gear motor with a brake mechanism to operate a roll tarp for use with an open top container. A motor-driven rollable cover is attached to and wrappable about a reel to selectively cover contents of the container. The hydraulic gear motor operates with a brake mechanism to lock and hold a position of the motor. A secondary brake mechanism may include a hydraulic piston that selectively engages a holding brake with a hex connector. A hydraulic motor may include a port path for flow of fluid to internal meshing gears and a braking mechanism with a plunger that clamps and holds the meshing gears when hydraulic fluid is not flowing. A transmission having rolling gears can be operated by the hydraulic motor with such brake mechanisms. The motor and brake mechanisms are preferably hydraulically operated with an existing system of a trailer or rail car.