Patents by Inventor David M. Moard

David M. Moard 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: 5944510
    Abstract: A fluid injector for use with a burner having at least a pair of concentric tubes which conduct at least two different fluids via inner and outer passageways to a discharge tip. The passageways having different linear fluid velocity rates which causes the issuing discharge flow of the fluids to constrict causing mixing and combining of the fluids for introducing to a combustion chamber. Protection of the injector from thermal melting or burning is provided by location of the injector within the coils of a feed preheater constituting a heat exchanger.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: August 31, 1999
    Inventors: Leonard Greiner, David M. Moard
  • Patent number: 5728183
    Abstract: A shift reactor is disclosed that is mounted on the exhaust end of an underoxidized burner so that the exhaust product is introduced to a cooler water bath in a compartment of the reactor. The exhaust product is passed through the water bath via submerged gas diffusers. The reactor compartment includes a collection chamber for receiving the bathed exhaust product containing hydrogen gas which is then exited to a shift catalyst chamber. The latter includes eductor for recirculation. A conduit may be coupled to the water bath for distributing heated water from the bath for exterior heating purposes or for purification means. A drain is operably connected to the conduit for permitting removal of excess water and a fill inlet is provided for adding water.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 17, 1998
    Assignee: Hydrogen Burner Tech., Inc.
    Inventors: Leonard Greiner, David M. Moard, Bharat Bhatt
  • Patent number: 5546701
    Abstract: Injectors are disclosed for use in an underoxidized burner having a single or double stage internal combustion chamber for receiving gaseous or liquid fuel such as diesel for mixture with air or oxygen and subsequent ignition by a spark plug. The injector includes feed conduits or tubes for simultaneously conducting air and fuel to a mixing device having a baffle arrangement against which separately injected air and fuel impinge causing a complete air/fuel blending which is ignited, burned and exhausted. The injector may accept effluent gases for mixing with water to produce maximum hydrogen H.sub.2 from fuels. A lamina flow is produced which is folded over and reversed in direction within the combustion chamber.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: August 20, 1996
    Assignee: Hydrogen Burner Technology, Inc.
    Inventors: Leonard Greiner, David M. Moard, Bharat Bhatt
  • Patent number: 5529484
    Abstract: Apparatus is disclosed herein for reducing engine nitrogen oxide emissions by mixing hydrogen prepared from a portion or all of engine fuel within a simple burner. The apparatus includes an insulated burner having an internal combustion chamber for receiving either a portion of or all the gaseous fuel or liquid fuel for mixture with air and subsequent ignition by a spark plug. The chamber is within a feed preheater assembly. A mixing chamber is included having a series of baffles against which injected air and fuel vapor impinge causing thorough and complete air/fuel blending into a mixture subsequently ignited and burned, and then discharged into the combustion chamber of the engine itself. The pre-heating assembly raises the temperature of the incoming air/fuel mixture via a heat exchanging process with post combusted gases from the combustion chamber.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: June 25, 1996
    Inventors: David M. Moard, Leonard Greiner
  • Patent number: 5437123
    Abstract: Injectors are disclosed for use in an underoxidized burner having a single or double stage internal combustion chamber for receiving gaseous or liquid fuel such as diesel for mixture with air or oxygen and subsequent ignition by a spark plug. The injector includes feed conduits or tubes for simultaneously conducting air and fuel to a mixing device having a baffle arrangement against which separately injected air and fuel impinge causing a complete air/fuel blending which is ignited, burned and exhausted. The injector may accept effluent gases for mixing with water to produce maximum hydrogen H.sub.2 from fuels. A lamina flow is produced which is folded over and reversed in direction within the combustion chamber.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: August 1, 1995
    Inventors: Leonard Greiner, David M. Moard, Bharat Bhatt
  • Patent number: 5207185
    Abstract: Apparatus is disclosed herein for reducing engine nitrogen oxide emissions by mixing hydrogen prepared from a portion of engine fuel within a simple burner. The apparatus includes a burner having an internal combustion chamber for receiving either a portion of gaseous fuel or liquid fuel for mixture with air and subsequent ignition by a spark plug. A mixing chamber is included having a series of baffles against which injected air and fuel vapor impinge causing thorough and complete air/fuel blending into a mixture subsequently ignited and burned, and then discharged into the combustion chamber of the engine itself.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: May 4, 1993
    Inventors: Leonard Greiner, David M. Moard