Patents by Inventor James Victor Hogan

James Victor Hogan 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).

  • Patent number: 9291161
    Abstract: A fluid-driven linear actuator comprises a piston configured for reciprocating motion in a piston chamber and a spool valve in a valve chamber. The valve chamber is fluidly connected to a fluid input and to a fluid output. The spool valve is configured to be hydraulically moved within the valve chamber between a plurality of spool valve configurations, comprising a first spool valve configuration wherein the valve chamber is fluidly connected to the piston chamber to thereby create a first fluid pressure differential which tends to force the piston in a first axial direction and a second spool valve configuration wherein the valve chamber is fluidly connected to the piston chamber to thereby create a second fluid pressure differential which tends to force the piston in a second axial direction.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: March 22, 2016
    Inventors: James Victor Hogan, Robert James Pletscher
  • Publication number: 20140090552
    Abstract: A fluid-driven linear actuator comprises a piston configured for reciprocating motion in a piston chamber and a spool valve in a valve chamber. The valve chamber is fluidly connected to a fluid input and to a fluid output. The spool valve is configured to be hydraulically moved within the valve chamber between a plurality of spool valve configurations, comprising a first spool valve configuration wherein the valve chamber is fluidly connected to the piston chamber to thereby create a first fluid pressure differential which tends to force the piston in a first axial direction and a second spool valve configuration wherein the valve chamber is fluidly connected to the piston chamber to thereby create a second fluid pressure differential which tends to force the piston in a second axial direction.
    Type: Application
    Filed: October 2, 2012
    Publication date: April 3, 2014
    Inventors: James Victor HOGAN, Robert James PLETSCHER
  • Patent number: 6769880
    Abstract: A pressure blowdown system for an oil-injected rotary screw air compressor having an output conduit mounted to a high pressure side of the compressor and having a feedback conduit mounted to an intake side of the compressor, includes a rigid container having a gas reservoir therein, the container having a rigid plate mounted thereon closing the reservoir, a rigid valve housing mounted to the plate, the housing defining a valve spool cavity and having a pressure blowdown vent, the cavity having first and second opposite ends, a valve spool slidably snugly mounted in the cavity for sliding translation between the first and second ends of the cavity, respectively into first and second positions in the cavity. Resilient means are mounted in the cavity for resiliently urging the valve spool from the first end towards the second end of the cavity. A first gas passageway in the plate provides unobstructed fluid communication between the first end of the cavity and the feedback conduit of the compressor.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: August 3, 2004
    Assignee: Mangonel Corporation
    Inventors: James Victor Hogan, Alan Michael Augustynek
  • Patent number: 6027315
    Abstract: A simplified control valve system is provided wherein a single multi-functional orifice provides the required bleed from the control cylinder chamber as well as the required venting of the system for blow down. Preferably, the control line will be an oil scavenger line and the multi-functional orifice will be positioned in the inlet passage of the valve to the compressor and a suitable oil sump positioned adjacent to the multi-optional orifice to collect any oil blown there through during blow down. The valve of the present invention is also adjustable by rotating the valve stem to which the control piston is connected.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: February 22, 2000
    Assignee: VMAC Division of Mangonel Corporation
    Inventor: James Victor Hogan