Patents Assigned to Elmer's Welding & Manufacturing LTD.
  • Patent number: 11780494
    Abstract: A control apparatus controls the hydraulic connection between self steering wheels on a trailing vehicle, for example a grain cart, and the hydraulic system of a utility vehicle, for example a tractor, towing the trailing vehicle. An auxiliary circuit on the trailing vehicle forms a continuous loop receiving in series one or more wheel actuators associated with the self steering wheels. A valve arrangement is operable in a locked state or unlocked state in which the continuous loop is isolated from the tractor to prevent or allow a flow of fluid in the continuous loop regardless of the state of the tractor hydraulics. In a manual state, the flow in the loop is dependent upon the tractor hydraulics. In an automatic mode, a controller automatically operates the valve arrangement between the locked and unlocked states dependent upon one or more sensed operating conditions of the trailing vehicle.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: October 10, 2023
    Assignee: Elmer's Welding & Manufacturing Ltd.
    Inventors: Matthew P. Froese, Rheal M. Boileau, Owen R. Cail
  • Patent number: 11008177
    Abstract: A control assembly provides autonomous control of various functions of a grain cart and/or provides guidance to an operator of the grain cart during the unloading of a grain cart. The control assembly collects input from one or more sensors including a speed sensor to monitor speed of a PTO that drives the unloading auger of the grain cart, a height sensor that measures the height of material discharged from the grain cart into a receptacle such as a grain truck, and/or a boundary sensors that measure lateral position of the grain cart relative to the receptacle or grain truck. Based on the input, the control assembly may vary the position of the discharge gate of the grain cart, or provide guidance to the operator to steer and position the grain cart relative to an adjacent grain truck.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 18, 2021
    Assignee: ELMER'S WELDING + MANUFACTURING LTD.
    Inventors: Vikram Banthia, Michael Ian James Friesen
  • Patent number: 10743475
    Abstract: An agricultural wagon, for example a grain cart, of the type including an upright unload auger at the front end of the grain receiving bin which can be pivoted between left side and right side discharge positions, further includes a gearbox supported at the bottom end of the unload auger. The gearbox has a main shaft directly coupled to the unload auger. An input shaft of the gearbox, coupled to the main shaft by gear reducing bevel gears, receives an input rotation from a drive source external of the gearbox, for example the PTO of a tractor, for driving the main shaft and the unload auger. A second pair of bevel gears transfer some of the input rotation of the main shaft to an output shaft of the gearbox which is connected to a lower auger along the bottom of the grain receiving bin.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: August 18, 2020
    Assignee: Elmer's Welding & Manufacturing Ltd.
    Inventor: Michael Ian James Friesen
  • Patent number: 10358790
    Abstract: A soil spreading scraper device has a cutting blade to cut soil from the ground and a rotating impeller member for spreading the cut soil as the frame is displaced forwardly. The impeller member includes a main disc body and a plurality of impeller blades on the main disc body which are pivotal relative to the body between a working position in which the blade body extends in a direction of the impeller axis away from the main disc body and a deflected position in which the blade body extends in a circumferential direction of the disc body in a trailing relationship relative to the pivot axis of the blade body. An actuating assembly resists displacement of the blade body into the deflected position until pressure on the paddle exceeds a prescribed holding force. A spring biases the body to return to the working position.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: July 23, 2019
    Assignee: Elmer's Welding & Manufacturing LTD.
    Inventor: Mark Christopher Thompson