Patents by Inventor Jerald L. Plyer

Jerald L. Plyer 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).

  • Hydraulic and electrical control systems for use with vehicle accessory units
    Patent number: 6253470
    Abstract: An hydraulic and electrical control system are provided for an accessory unit such as a vehicle mounted V-plow blade snowplow.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: July 3, 2001
    Assignee: Douglas Dynamics
    Inventors: Gerald L. Depies, Jerald L. Plyer, Charles J. Solveson
  • Vehicle mountable snowplow
    Patent number: 6012240
    Abstract: A snowplow for selective attachment to a vehicle, comprising a frame, a blade attached to the frame, and a latching mechanism that is movable to first and second positions to allow selective engagement or disengagement of the snowplow with the vehicle. The latching mechanism is operable by a user from a location point remote from underneath the vehicle.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: January 11, 2000
    Assignee: Douglas Dynamics, L.L.C.
    Inventors: Steven L. Klug, Jerald L Plyer, Chad T. Barker
  • Hydraulic and electrical control systems for use with vehicle accessory units
    Patent number: 6000150
    Abstract: An hydraulic and electrical control system are provided for an accessory unit such as a vehicle mounted V-plow blade snowplow.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: December 14, 1999
    Assignee: Douglas Dynamics, L.L.C.
    Inventors: Gerald L. Depies, Jerald L. Plyer, Charles J. Solveson