Patents by Inventor Hugh Ivo Frazer

Hugh Ivo Frazer 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).

  • Hydraulic energy storage systems
    Patent number: 7107767
    Abstract: A hydraulic energy storage system for vehicles to provide higher efficiency, smaller package size, lower weight, unitary construction, durability and enhanced reliability while maintaining the capability to efficiently store and restore energy at high power levels.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: September 19, 2006
    Assignee: Shep Limited
    Inventors: Hugh Ivo Frazer, William Raymond Evans, Peter Russell Mattin
  • Hydraulic energy storage systems
    Publication number: 20040103656
    Abstract: A hydraulic energy storage system for vehicles to provide higher efficiency, smaller package size, lower weight, unitary construction, durability and enhanced reliability while maintaining the capability to efficiently store and restore energy at high power levels.
    Type: Application
    Filed: January 7, 2004
    Publication date: June 3, 2004
    Inventors: Hugh Ivo Frazer, William Raymond Evans, Peter Russell Martin
  • Emergercy energy release for hydraulic energy storage systems
    Publication number: 20040050042
    Abstract: A method for the release of energy in storage hydraulic energy propulsion systems having hydro-pneumatic accumulators used in vehicles and in hydraulic hybrid vehicles. Novel pressure-release valves and valve systems for the sensing of gas and fluid (liquid) pressures and for detecting malfunctions or pressure variations within an energy storage system are disclosed.
    Type: Application
    Filed: October 3, 2003
    Publication date: March 18, 2004
    Inventor: Hugh Ivo Frazer
  • Methods for seabed piston coring
    Patent number: 6394192
    Abstract: A method of acquiring a core sample of seabed material into a core sampling tube having an upper end, a lower open end and a substantially cylindrical chamber extending therebetween, comprising the steps of urging the core sampling tube into the seabed and simultaneously withdrawing fluid from the upper end of the core sampling tube at a rate sufficient to cause the seabed material to be drawn into the core tube at substantially the same rate as the core tube penetrates the seabed.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: May 28, 2002
    Assignee: Benthic GeoTech Pty Ltd
    Inventor: Hugh Ivo Frazer