Patents by Inventor Patrick Alan Lafferty

Patrick Alan Lafferty 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).

  • Regenerative energy storage and conversion system
    Patent number: 6748737
    Abstract: A hydraulic circuit system and method for storing and converting hydraulic or mechanical energy to electricity wherein the hydraulic circuit system comprises: a power source for generating energy to produce electricity, a hydraulic power unit operably associated with the power source, one or more hydropneumatic accumulators operably associated with the hydraulic power unit, a hydraulic motor operably associated with the accumulators, a flywheel assembly operably associated with the hydraulic motor, a hydrostatic drive unit operably associated with the flywheel assembly, and a generator assembly operably associated with the hydrostatic drive unit wherein the generator assembly is further associated with the hydraulic power unit.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: June 15, 2004
    Inventor: Patrick Alan Lafferty
  • Regenerative energy storage and conversion system
    Publication number: 20020060500
    Abstract: A hydraulic circuit system and method for storing and converting hydraulic or mechanical energy to electricity wherein the hydraulic circuit system comprises: a power source for generating energy to produce electricity, a hydraulic power unit operably associated with the power source, one or more hydropneumatic accumulators operably associated with the hydraulic power unit, a hydraulic motor operably associated with the accumulators, a flywheel assembly operably associated with the hydraulic motor, a hydrostatic drive unit operably associated with the flywheel assembly, and a generator assembly operably associated with the hydrostatic drive unit wherein the generator assembly is further associated with the hydraulic power unit.
    Type: Application
    Filed: November 19, 2001
    Publication date: May 23, 2002
    Inventor: Patrick Alan Lafferty
  • Method for preparing a core material containment system and the core material containment system prepared thereby
    Patent number: 6060084
    Abstract: A method for preparing a core material containment system which prevents or controls leaching of the core material from the containment system, said method comprising the steps of: (1) providing a shell material having a softening temperature above about 70.degree. F.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: May 9, 2000
    Assignee: Cannon Chemical Company
    Inventors: Radmila Sullivan, Marvin L. Kidd, Patrick Alan Lafferty