Patents by Inventor Timothy W. Grunow

Timothy W. Grunow 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).

  • Auxiliary hydraulic control system for a work machine
    Patent number: 6062331
    Abstract: An auxiliary hydraulic control system for controlling the flow of hydraulic fluid within an auxiliary hydraulic circuit associated with a particular work machine wherein such system includes a first bi-directional proportional switch actuatable to control the direction of flow within the auxiliary hydraulic circuit in either a first or a second direction and at a flow rate which is proportional to the amount of pressure being exerted on the switch in the selected direction, a second switch actuatable to provide continuous flow in the selected direction and at the selected flow rate, and an electronic controller coupled to the first and second switches for receiving signals therefrom, the controller outputting a signal to initiate continuous flow in the selected direction and at the selected flow rate when the controller receives signals indicative of the first switch being actuated, the second switch being actuated, and the first switch being released within a predetermined period of time after the second swi
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: May 16, 2000
    Assignee: S.A.R.L.
    Inventors: Timothy W. Grunow, Raymond T. Schenck, Steven T. Ufheil