Patents by Inventor David S. Lamb

David S. Lamb 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).

  • Geothermal energy transfer system
    Patent number: 9816732
    Abstract: An energy transfer unit for a geothermal system includes an outer housing. A heat exchanger is located within the housing. An inlet pipe extends from the housing to the heat exchanger to convey heat transfer fluid to the heat exchanger and an outlet pipe extends from the housing to the heat exchanger to convey heat transfer fluid from the heat exchanger.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: November 14, 2017
    Assignee: Heat-Line Corporation
    Inventors: Lorne R. Heise, Matthew J. H. Roberts, Fraser F. Newton, David S. Lamb
  • Geothermal Energy Transfer System
    Publication number: 20150233608
    Abstract: An energy transfer unit for a geothermal system includes an outer housing. A heat exchanger is located within the housing. An inlet pipe extends from the housing to the heat exchanger to convey heat transfer fluid to the heat exchanger and an outlet pipe extends from the housing to the heat exchanger to convey heat transfer fluid from the heat exchanger.
    Type: Application
    Filed: September 29, 2014
    Publication date: August 20, 2015
    Applicant: HEAT-LINE CORPORATION
    Inventors: Lorne R. HEISE, Matthew J.H. ROBERTS, Fraser F. NEWTON, David S. LAMB
  • Control for Geothermal Heating System
    Publication number: 20120211195
    Abstract: A geothermal energy transfer system has a heat transfer loop associated with a heat pump and a heat absorption loop to circulate fluid through an energy source, such as the ground or body of water. The loops are connected through a reservoir and each loop has a circulating pump to circulate fluid through respective loops. The flow rates of the pumps are selected to optimise energy transfer in each loops and differences in the flow rates are absorbed in the reservoir.
    Type: Application
    Filed: February 17, 2012
    Publication date: August 23, 2012
    Inventors: Lorne R. Heise, Fraser F. Newton, David S. Lamb
  • Geothermal Energy Transfer System
    Publication number: 20120043052
    Abstract: An energy transfer unit for a geothermal system includes an outer housing. A heat exchanger is located within the housing. An inlet pipe extends from the housing to the heat exchanger to convey heat transfer fluid to the heat exchanger and an outlet pipe extends from the housing to the heat exchanger to convey heat transfer fluid from the heat exchanger.
    Type: Application
    Filed: July 25, 2011
    Publication date: February 23, 2012
    Applicant: Heat-Line Corporation
    Inventors: Lorne R. Heise, Matthew J.H. Roberts, Fraser F. Newton, David S. Lamb
  • Method and apparatus for conditioning fixed-abrasive polishing pads
    Patent number: 6752698
    Abstract: A method and apparatus for conditioning a fixed-abrasive polishing pad used in chemical mechanical planarization of semiconductor wafers is described. The apparatus includes a conditioning member having a smooth surface. The method includes providing a conditioning member having a smooth surface, pressing the conditioning member against the fixed-abrasive polishing pad, and moving the fixed-abrasive polishing pad. In one embodiment, the method further comprises moving the conditioning member perpendicular to the direction of movement of the fixed-abrasive pad to compensate for variations in amounts of exposed abrasive on the fixed-abrasive pad.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: June 22, 2004
    Assignee: Lam Research Corporation
    Inventors: Peter Renteln, Alan J. Jensen, David S. Lamb