Patents by Inventor Jeff Oligmueller

Jeff Oligmueller 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).

  • Three-way poppet valve with intermediate pilot port
    Patent number: 7921880
    Abstract: An integrated three-way poppet valve is disclosed with an intermediate pilot port and an integral load holding check valve. The valve incorporates a reverse flow check poppet for load hold capability, which enables a lower cost solution compared to a combination of valves of similar functionality. A control method is also disclosed using an integrated three-way poppet valve to control the flow of hydraulic oil to a cylinder, hydraulic motor, or other hydraulic device in proportion to the amount of a current applied to a solenoid coil. Depending on the current applied, the valve blocks all flow or else permits flow from one inlet port to two outlet ports proportional to the current applied.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: April 12, 2011
    Assignee: HydraForce, Inc.
    Inventors: Randall S. Jackson, Anthony Casale, Jeff Oligmueller
  • Three-way poppet valve with intermediate pilot port
    Publication number: 20090050222
    Abstract: An integrated three-way poppet valve is disclosed with an intermediate pilot port and an integral load holding check valve. The valve incorporates a reverse flow check poppet for load hold capability, which enables a lower cost solution compared to a combination of valves of similar functionality. A control method is also disclosed using an integrated three-way poppet valve to control the flow of hydraulic oil to a cylinder, hydraulic motor, or other hydraulic device in proportion to the amount of a current applied to a solenoid coil. Depending on the current applied, the valve blocks all flow or else permits flow from one inlet port to two outlet ports proportional to the current applied.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 26, 2009
    Applicant: HydraForce, Inc.
    Inventors: Randall S. Jackson, Anthony Casale, Jeff Oligmueller