Patents by Inventor James D. Linderode

James D. Linderode 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).

  • Independent and regenerative mode fluid control system
    Patent number: 6701822
    Abstract: A fluid control system is disclosed that includes a first double-acting actuator and a second double-acting actuator. A first independent metering valve has a first control port connected to the first double-acting actuator, a second control port connected to the second double-acting actuator, first and second independently operable valves disposed between the inlet port and the first and second control ports, and a first check control mechanism having a main check valve between the inlet port and the first and second independently operable valves. The first check control mechanism controls the main check valve to allow the first and second actuators to operate in either an independent function mode or a regenerative function mode.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: March 9, 2004
    Assignees: Caterpillar Inc, Shin Caterpillar Mitsubishi Ltd
    Inventors: Thomas J. Hajek, Jr., Srikrishnan T. Tolappa, James D. Linderode
  • Independent and regenerative mode fluid control system
    Publication number: 20030106422
    Abstract: A fluid control system is disclosed that includes a first double-acting actuator and a second double-acting actuator. A first independent metering valve has a first control port connected to the first double-acting actuator, a second control port connected to the second double-acting actuator, first and second independently operable valves disposed between the inlet port and the first and second control ports, and a first check control mechanism having a main check valve between the inlet port and the first and second independently operable valves. The first check control mechanism controls the main check valve to allow the first and second actuators to operate in either an independent function mode or a regenerative function mode.
    Type: Application
    Filed: September 16, 2002
    Publication date: June 12, 2003
    Applicants: Caterpillar Inc., Shin Caterpillar Mitsubishi Ltd.
    Inventors: Thomas J. Hajek, Srikrishnan T. Tolappa, James D. Linderode