Patents by Inventor Roger Edwin Howe

Roger Edwin Howe 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).

  • Variable frequency and amplitude dither for electronically controlled valves
    Patent number: 8118058
    Abstract: A method is disclosed that includes allowing both frequency and amplitude of a periodic waveform to be adjusted. The method also includes creating the periodic waveform having the frequency and the amplitude. The periodic waveform is coupled to at least one control signal. The at least one control signal is provided to an output suitable for coupling to an actuator of an electronically controlled device. An apparatus and computer program product are disclosed.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: February 21, 2012
    Assignee: Enfield Technologies, LLC
    Inventors: Daniel S. Cook, Roger Edwin Howe
  • Equalization of pressure in an electronically controlled valve
    Patent number: 7845370
    Abstract: Disclosed herein is an electronically controlled valve. The electronically controlled valve includes a valve body and a spool. The valve body includes at least one fluid inlet port, at least one fluid outlet port, an upper cavity, and a lower cavity. The spool is disposed within the valve body. The spool includes a first end and an opening. The opening allows the lower cavity to be in fluid communication with the upper cavity.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: December 7, 2010
    Assignee: Enfield Technologies, LLC
    Inventors: Daniel C. Cook, Blake D. Carter, Roger Edwin Howe
  • Equalization of pressure in an electronically controlled valve
    Publication number: 20080099087
    Abstract: Disclosed herein is an electronically controlled valve. The electronically controlled valve includes a valve body and a spool. The valve body includes at least one fluid inlet port, at least one fluid outlet port, an upper cavity, and a lower cavity. The spool is disposed within the valve body. The spool includes a first end and an opening. The opening allows the lower cavity to be in fluid communication with the upper cavity.
    Type: Application
    Filed: September 21, 2007
    Publication date: May 1, 2008
    Inventors: Daniel C. Cook, Blake D. Carter, Roger Edwin Howe