Patents by Inventor Donald W. Bremer

Donald W. Bremer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Particulate material trailer hopper door opening apparatus
    Patent number: 10864838
    Abstract: A hopper door opening and closing apparatus operates a door on a hopper discharge opening. A pair of motorized linear actuators, each having an extendable rod, are mounted to support rails on opposite sides of the door. A bracket connects the rods to the door. A controller selectively activates the linear actuators to extend the rods and thereby move the door to an open position that permits material to flow through the lower opening and selectively activates the linear actuators to retract rods and thereby move the door to a closed position covering the lower opening.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: December 15, 2020
    Assignee: Sioux City Tarp, Inc.
    Inventors: Donald W. Bremer, Terry L. Berg
  • PARTICULATE MATERIAL TRAILER HOPPER DOOR OPENING APPARATUS
    Publication number: 20190291625
    Abstract: A hopper door opening and closing apparatus operates a door on a hopper discharge opening. A pair of motorized linear actuators, each having an extendable rod, are mounted to support rails on opposite sides of the door. A bracket connects the rods to the door. A controller selectively activates the linear actuators to extend the rods and thereby move the door to an open position that permits material to flow through the lower opening and selectively activates the linear actuators to retract rods and thereby move the door to a closed position covering the lower opening.
    Type: Application
    Filed: April 26, 2019
    Publication date: September 26, 2019
    Inventors: Donald W. Bremer, Terry L. Berg
  • Particulate material trailer hopper door opening apparatus
    Patent number: 10358075
    Abstract: A hopper door opening and closing apparatus operates a door on a hopper discharge opening. A pair of motorized linear actuators, each having an extendable rod, are mounted to support rails on opposite sides of the door. A bracket connects the rods to the door. A controller selectively activates the linear actuators to extend the rods and thereby move the door to an open position that permits material to flow through the lower opening and selectively activates the linear actuators to retract rods and thereby move the door to a closed position covering the lower opening.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: July 23, 2019
    Assignee: Sioux City Tarp, Inc.
    Inventors: Donald W. Bremer, Terry L. Berg
  • PARTICULATE MATERIAL TRAILER HOPPER DOOR OPENING APPARATUS
    Publication number: 20170136933
    Abstract: A hopper door opening and closing apparatus operates a door on a hopper discharge opening. A pair of motorized linear actuators, each having an extendable rod, are mounted to support rails on opposite sides of the door. A bracket connects the rods to the door. A controller selectively activates the linear actuators to extend the rods and thereby move the door to an open position that permits material to flow through the lower opening and selectively activates the linear actuators to retract rods and thereby move the door to a closed position covering the lower opening.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 18, 2017
    Inventors: Donald W. Bremer, Terry L. Berg