Patents by Inventor John I. Koeper

John I. Koeper 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).

  • Patent number: 6883625
    Abstract: Supplemental walk along control for walkie/rider pallet trucks is provided by supplemental controllers such as jog and coast release switches and/or twist grips (or other drive motor speed controllers) provided adjacent the base of load carrying forks. The supplemental controllers are enabled during coasting operation so that operators can advance to the base of the forks to accelerate the trucks between closely spaced picks located along substantially straight portions of pick routes. For application of the trucks' brakes, the operators activate the coast release switches to release the coast mode and enable deadman brake mechanisms to brake the trucks and/or by plug braking with the twist grips. A steering direction detector is provided to determine the direction of the steered wheel so that if the steered wheel is not directed substantially straight ahead, then operation of the truck from the supplemental controls is disabled.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: April 26, 2005
    Assignee: Crown Equipment Corporation
    Inventors: Allen T. Trego, John I. Koeper, Robert J. Henshaw
  • Patent number: 6595306
    Abstract: Supplemental walk along control for walkie/rider pallet trucks is provided by supplemental jog switches and coast release switches provided adjacent to the base of load carrying forks. The supplemental jog switches are enabled during coasting operation so that operators can advance to the base of the forks to accelerate the trucks between closely spaced picks located along substantially straight portions of pick routes. For application of the trucks' brakes, the operators activate the coast release switches to release the coast mode and enable deadman brake mechanisms to brake the trucks. A steering direction detector is provided to determine the direction of the steered wheel so that if the steered wheel is not directed substantially straight ahead, then operation of the truck from the supplemental jog switches is disabled.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: July 22, 2003
    Assignee: Crown Equipment Corporation
    Inventors: Allen T. Trego, John I. Koeper, Robert J. Henshaw
  • Publication number: 20030029647
    Abstract: Supplemental walk along control for walkie/rider pallet trucks is provided by supplemental jog switches and coast release switches provided adjacent to the base of load carrying forks. The supplemental jog switches are enabled during coasting operation so that operators can advance to the base of the forks to accelerate the trucks between closely spaced picks located along substantially straight portions of pick routes. For application of the trucks' brakes, the operators activate the coast release switches to release the coast mode and enable deadman brake mechanisms to brake the trucks. A steered direction detector is provided to determine the direction of the steered wheel so that if the steered wheel is not directed substantially straight ahead, then operation of the truck from the supplemental jog switches is disabled.
    Type: Application
    Filed: August 9, 2001
    Publication date: February 13, 2003
    Inventors: Allen T. Trego, John I. Koeper, Robert J. Henshaw
  • Publication number: 20030029648
    Abstract: Supplemental walk along control for walkie/rider pallet trucks is provided by supplemental controllers such as jog and coast release switches and/or twist grips (or other drive motor speed controllers) provided adjacent the base of load carrying forks. The supplemental controllers are enabled during coasting operation so that operators can advance to the base of the forks to accelerate the trucks between closely spaced picks located along substantially straight portions of pick routes. For application of the trucks' brakes, the operators activate the coast release switches to release the coast mode and enable deadman brake mechanisms to brake the trucks and/or by plug braking with the twist grips. A steering direction detector is provided to determine the direction of the steered wheel so that if the steered wheel is not directed substantially straight ahead, then operation of the truck from the supplemental controls is disabled.
    Type: Application
    Filed: August 7, 2002
    Publication date: February 13, 2003
    Inventors: Allen T. Trego, John I. Koeper, Robert J. Henshaw
  • Patent number: 4157467
    Abstract: A control system for directing hydraulic fluid to selected cylinders on a lift truck to perform selective ones of a plurality of power truck functions, such as raising and lowering the lift forks on the truck mast, tilting the lift forks with respect to the truck mast, and extending the lift forks away from the truck mast, includes a control lever mounted on the truck control panel, having upper and lower control positions and a neutral position therebetween. A function control switch includes a manually actuatable switch button on the controlled lever. A counter means is responsive to the function control switch to cycle sequentially through a plurality of count states from an initial count state in response to actuation of the function control switch means.
    Type: Grant
    Filed: March 17, 1978
    Date of Patent: June 5, 1979
    Assignee: Crown Controls Corporation
    Inventor: John I. Koeper