Patents by Inventor Danny M. Smith

Danny M. Smith 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).

  • Solenoid operated valve with hydraulic dampening
    Publication number: 20020117216
    Abstract: A solenoid operated pressure balanced spool type pressure control valve for controlling flow between a pressure source inlet and a signal pressure outlet and between the signal pressure outlet and an exhaust or sump return port. the spool has metering orifices formed in pressure equalization flow passages through the spool. The metering orifices preferably comprise three orifices having a diameter in the range of about 0.50-0.76 mm for providing viscous dampening of the flow through the spool and dampers oscillations of the spool and armature due to hydraulic and/or electrical transients.
    Type: Application
    Filed: February 28, 2001
    Publication date: August 29, 2002
    Applicant: Eaton Corporation
    Inventors: Steven L. Ambrose, Carl G. Gluf, John A. Ness, Danny M. Smith