Patents by Inventor Mark R Hammer

Mark R Hammer 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).

  • Dual circuit refrigerant condenser
    Patent number: 9372019
    Abstract: A dual circuit condenser for a cooling system is configured to cool refrigerant passing through the condenser. Operation of a first circuit of the system establishes a first temperature at a first area of the condenser, and operation of a second circuit of the system establishes a second temperature at a second area of the condenser. The condenser includes a manifold. The manifold is configured to receive a plurality of tubes. The manifold is further configured to define a first volume that is part of the first circuit and a second volume that is part of the second circuit. The manifold includes three or more separators interposed between the first volume and the second volume to segregate refrigerant in the first circuit from refrigerant in the second circuit.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: June 21, 2016
    Assignee: MAHLE International GmbH
    Inventors: Lisa A. Allan, Nicholas J. Alonge, Jr., Mark R. Hammer, Timothy J. Filonczuk, William D. Wright, Judd W. Glenn, Shrikant M Joshi, Joel T. Hambruch, Rogelio Salais
  • DUAL CIRCUIT REFRIGERANT CONDENSER
    Publication number: 20150330683
    Abstract: A dual circuit condenser for a cooling system is configured to cool refrigerant passing through the condenser. Operation of a first circuit of the system establishes a first temperature at a first area of the condenser, and operation of a second circuit of the system establishes a second temperature at a second area of the condenser. The condenser includes a manifold. The manifold is configured to receive a plurality of tubes. The manifold is further configured to define a first volume that is part of the first circuit and a second volume that is part of the second circuit. The manifold includes three or more separators interposed between the first volume and the second volume to segregate refrigerant in the first circuit from refrigerant in the second circuit.
    Type: Application
    Filed: May 14, 2014
    Publication date: November 19, 2015
    Inventors: LISA A. ALLAN, NICHOLAS J. ALONGE, JR., MARK R. HAMMER, TIMOTHY J. FILONCZUK, WILLIAM D. WRIGHT, JUDD W. GLENN, SHRIKANT M. JOSHI, JOEL T. HAMBRUCH, ROGELIO SALAIS
  • Heat exchanger design based on partial stain energy density ratio
    Patent number: 7207378
    Abstract: A heat exchanger assembly that addresses the thermal cycling problem to increase the durability of the heat exchanger core by fabricating at least the tube next adjacent to each of the reinforcing members with a cross section adjacent each of the headers including a radius having a partial maximum tube strain energy density and fabricating each of the reinforcing members with a connection section adjacent each of the headers having a reinforcement with a partial maximum strain energy density greater than the partial maximum strain energy density of the adjacent tube.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: April 24, 2007
    Assignee: Delphi Technologies, Inc.
    Inventors: Karl Paul Kroetsch, Brian M. Hartman, Mark R Hammer