Patents Assigned to Coolhead Technologies, Inc.
  • Dielectric welding methods and apparatus
    Patent number: 7208711
    Abstract: Dielectric welding apparatus has opposed electrodes that can be engaged on either side of a product to be welded and a dielectric welding power supply that supplies welding potentials to the electrodes. The apparatus includes electrically insulating buffer material adjacent to at least one of the electrodes. A recess formed in a surface of the buffer material receives an end of an electrically-conductive member in the product. The buffer material prevents arcing between the electrodes and the electrically-conductive member.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: April 24, 2007
    Assignee: Coolhead Technologies, Inc.
    Inventors: R. David Fletcher, Christopher Lawrence Clarke
  • APPARATUS AND METHODS FOR WARMING AND COOLING BODIES
    Publication number: 20060191675
    Abstract: A flexible heat exchanger is suitable for heating or cooling living subjects or objects. The heat exchanger has a volume having at least one inlet for receiving a heat exchange fluid and at least one outlet. A flexible heat exchange plate that is essentially impermeable to the heat exchange fluid is penetrated by substantially rigid thermally-conductive members. The members provide paths of high thermal conductivity through the plate. The heat exchange fluid may be water.
    Type: Application
    Filed: March 21, 2006
    Publication date: August 31, 2006
    Applicant: Coolhead Technologies, Inc.
    Inventors: R. FLETCHER, John Fletcher, Katie Au, Christopher Clarke, Yunquan Chen
  • Flexible heat exchangers for medical cooling and warming applications
    Patent number: 7077858
    Abstract: A flexible heat exchanger is suitable for heating or cooling living subjects. The heat exchanger has a a volume having at least one inlet for receiving a heat exchange fluid and at least one outlet. A flexible heat exchange plate that isessentially impermeable to the heat exchange fluid is penetrated by substantially rigid thermally conductive members. The members provide paths of high thermal conductivity through the plate. The heat exchange fluid may be water.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: July 18, 2006
    Assignee: Coolhead Technologies, Inc.
    Inventors: R. David Fletcher, Yunquan Chen
  • Dielectric welding methods and apparatus
    Publication number: 20050252896
    Abstract: Dielectric welding apparatus has opposed electrodes that can be engaged on either side of a product to be welded and a dielectric welding power supply that supplies welding potentials to the electrodes. The apparatus includes electrically insulating buffer material adjacent to at least one of the electrodes. A recess formed in a surface of the buffer material receives an end of an electrically-conductive member in the product. The buffer material prevents arcing between the electrodes and the electrically-conductive member.
    Type: Application
    Filed: May 13, 2005
    Publication date: November 17, 2005
    Applicant: Coolhead Technologies, Inc.
    Inventors: R. Fletcher, Christopher Clarke
  • Flexible heat exchangers for medical cooling and warming applications
    Publication number: 20050065581
    Abstract: A flexible heat exchanger is suitable for heating or cooling living subjects. The heat exchanger has a a volume having at least one inlet for receiving a heat exchange fluid and at least one outlet. A flexible heat exchange plate that isessentially impermeable to the heat exchange fluid is penetrated by substantially rigid thermally conductive members. The members provide paths of high thermal conductivity through the plate. The heat exchange fluid may be water.
    Type: Application
    Filed: September 22, 2003
    Publication date: March 24, 2005
    Applicant: Coolhead Technologies, Inc.
    Inventors: R. Fletcher, Yunquan Chen
  • Flexible heat exchangers
    Publication number: 20050061473
    Abstract: A heat exchanger for heating or cooling objects is flexible and can conform to surface profiles of objects to be warmed or cooled. The heat exchanger has a volume having at least one inlet for receiving a heat exchange fluid and at least one outlet. A flexible plate essentially impermeable to the heat exchange fluid is penetrated by substantially rigid thermally conductive members. The members provide paths of high thermal conductivity through the plate. The heat exchange fluid may be water based.
    Type: Application
    Filed: September 22, 2003
    Publication date: March 24, 2005
    Applicant: Coolhead Technologies, Inc.
    Inventors: R. Fletcher, Yunquan Chen