Brian L Weaver

US Patent:

7526883, May 5, 2009

Filed:

Nov 21, 2006

Appl. No.:

11/602611

Inventors:

Tom W. Musso - Bath NY, US
Brian Weaver - Prattsburgh NY, US

Assignee:

SP Fabricators, LLC - Prattsburgh NY

International Classification:

E01H 5/04

US Classification:

37231, 37235, 172275

Abstract:

A plow hitch assembly comprising a hitch frame, a lift frame pivotally connected to the back end of the hitch frame, and a back end effector for mounting to a vehicle. The back end effector has an associated latching device and a distinctly actuated device for locking the latch. A stop surface is situated on the latch, and a selectively displaceable lock block supported by the lift frame, abuts the stop surface to prevent rotation of the latch. Each of two uniformly rectangular mounting arms extends from the back of the lift frame, preferably with a leading end having a pair of vertically oriented rollers at the corners. Each guide has a rectangular main channel conforming in cross section with the arm when the arm is fully inserted into the channel and an entry that is larger in cross sectional area than the front of the arm.

US Patent:

7574820, Aug 18, 2009

Filed:

Nov 21, 2006

Appl. No.:

11/602610

Inventors:

Tom W. Musso - Bath NY, US
Brian Weaver - Prattsburgh NY, US

Assignee:

SP Fabricators, LLC - Prattsburgh NY

International Classification:

E01H 5/06

US Classification:

37270, 37231, 172273

Abstract:

A jack assembly integrated with a plow hitch assembly includes a horizontally supported, rotatable jack tube and a jack leg extending from the tube, rotatable with the tube between a vertical, deployed position and a retracted position. An actuator has one end attached to the jack assembly and another end forming a handle projecting above the hitch frame, for rotating the jack assembly. The jack leg can be selectively extended and retracted relative to the tube when the jack assembly is deployed. A method embodiment includes lowering the plow to the ground while the hitch frame is mounted to the vehicle; rotating the jack assembly so the jack leg projects toward the ground; extending the jack leg to contact the ground; rigidly supporting the extended jack leg relative to the hitch frame; demounting the hitch frame from the vehicle; and driving the vehicle out of the hitch frame.