Patents by Inventor Francis A. Kulacki

Francis A. Kulacki 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: 8360138
    Abstract: The electronic system includes an electronic device and a liquid holding section that is thermally coupled to the electronic device. The electronic system further includes an impermeable section that engages the liquid holding section. The impermeable section includes a channel and a plurality of passages that provide fluid communication between the liquid holding section and the channel. The electronic system further includes (i) a first fluid that flows through the channel in the impermeable section to facilitate heat transfer from the electronic device to the first fluid; and (ii) a second fluid that flows from the liquid holding section through the plurality of passages into the channel when the second fluid boils within the liquid holding section due to heat transfer from the electronic device to the second fluid. In some embodiments, the first and second fluids are different types of substances.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: January 29, 2013
    Assignees: Honeywell International Inc., Regents of the University of Minnesota
    Inventors: Chunbo Zhang, Yuandong Gu, Martin Kristoffersen, Francis A. Kulacki, Brian C. Krafthefer
  • Publication number: 20110297354
    Abstract: The electronic system includes an electronic device and a liquid holding section that is thermally coupled to the electronic device. The electronic system further includes an impermeable section that engages the liquid holding section. The impermeable section includes a channel and a plurality of passages that provide fluid communication between the liquid holding section and the channel. The electronic system further includes (i) a first fluid that flows through the channel in the impermeable section to facilitate heat transfer from the electronic device to the first fluid; and (ii) a second fluid that flows from the liquid holding section through the plurality of passages into the channel when the second fluid boils within the liquid holding section due to heat transfer from the electronic device to the second fluid. In some embodiments, the first and second fluids are different types of substances.
    Type: Application
    Filed: August 18, 2011
    Publication date: December 8, 2011
    Applicants: Regents of the University of Minnesota, Honeywell International Inc.
    Inventors: Chunbo Zhang, Yuandong Gu, Martin Kristoffersen, Francis A. Kulacki, Brian C. Krafthefer
  • Patent number: 8011421
    Abstract: The electronic system includes an electronic device and a liquid holding section that is thermally coupled to the electronic device. The electronic system further includes an impermeable section that engages the liquid holding section. The impermeable section includes a channel and a plurality of passages that provide fluid communication between the liquid holding section and the channel. The electronic system further includes (i) a first fluid that flows through the channel in the impermeable section to facilitate heat transfer from the electronic device to the first fluid; and (ii) a second fluid that flows from the liquid holding section through the plurality of passages into the channel when the second fluid boils within the liquid holding section due to heat transfer from the electronic device to the second fluid. In some embodiments, the first and second fluids are different types of substances.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: September 6, 2011
    Assignees: Honeywell International Inc., Regents of the University of Minnesota
    Inventors: Chunbo Zhang, Yuandong Gu, Martin Kristoffersen, Francis A. Kulacki, Brian C. Krafthefer
  • Publication number: 20080137299
    Abstract: The electronic system includes an electronic device and a liquid holding section that is thermally coupled to the electronic device. The electronic system further includes an impermeable section that engages the liquid holding section. The impermeable section includes a channel and a plurality of passages that provide fluid communication between the liquid holding section and the channel. The electronic system further includes (i) a first fluid that flows through the channel in the impermeable section to facilitate heat transfer from the electronic device to the first fluid; and (ii) a second fluid that flows from the liquid holding section through the plurality of passages into the channel when the second fluid boils within the liquid holding section due to heat transfer from the electronic device to the second fluid. In some embodiments, the first and second fluids are different types of substances.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 12, 2008
    Inventors: Chunbo Zhang, Yuandong Gu, Martin Kristoffersen, Francis A. Kulacki, Brian C. Krafthefer
  • Publication number: 20070153480
    Abstract: A system using a multi-fluid coolant. Immiscible or miscible fluids may be put through one or more channels. A device to be cooled may be thermally coupled to the channels. The boiling point of one fluid may be greater than an operating temperature that is to be maintained in the device. The boiling point of another fluid should be less than the operating temperature of the device.
    Type: Application
    Filed: December 18, 2006
    Publication date: July 5, 2007
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Chunbo Zhang, Yuandong Gu, Francis Kulacki, Martin Kristoffersen