Patents by Inventor Mark Barratt

Mark Barratt 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).

  • Cryostat Having Separate Cooling Circuits for Cooling the Chamber and a Sample Holder
    Publication number: 20080041069
    Abstract: According to an aspect of the present invention, a cryostat includes two separate cooling means, one for reducing the temperature in a cooling chamber (2) and the other arranged to cool a freezing plate (8). In one embodiment, there may be a single cooling circuit, with e.g. a single reservoir of refrigerant, but with a separate compressor provided for each of the cooling means i.e. one compressor to control the temperature within the cooling chamber (2) and a separate compressor for the cooling circuit associated with the freezing plate (8). In accordance with another aspect of the present invention, the freezing plate (8) includes means for retaining some liquid on the surface of the freezing plate. In an embodiment, these means are provided by a lip (12). In a further aspect a friction generating means provides resistance to the movement of the microtome head, for example by providing a spring loaded collar on rotatable shaft. In a further aspect a cryostat is provided with a touch screen display.
    Type: Application
    Filed: September 16, 2005
    Publication date: February 21, 2008
    Applicant: THERMO SHANDON LTD
    Inventors: David Vicar, Graham Dawson, Mark Barratt, John Cox
  • Dialable data services/TDM bandwidth management
    Patent number: 6584119
    Abstract: A communications device and method for effectively managing bandwidth within a telecommunications network carrying both time division multiplexed signals as well as data signals. The communications device having dialable TDM/cell and/or packet-based bandwidth management capability so that a network operator can select to manage bandwidth for any particular signal on in STS, VT, or cell or packet basis.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: June 24, 2003
    Assignee: Fujitsu Network Communications, Inc.
    Inventors: Hamid Rezaie, Samuel Lisle, Masahiro Shinbashi, Kazuhiko Taniquchi, David Chen, Edward Sullivan, Mark Barratt, Richard DeBoer
  • Dialable data services/TDM bandwidth management
    Patent number: 6396847
    Abstract: A communications device and method for effectively managing bandwidth within a telecommunications network carrying both time division multiplexed signals as well as data signals. The communications device having dialable TDM/cell and/or packet-based bandwidth management capability so that a network operator can select to manage bandwidth for any particular signal on in STS, VT, or cell or packet basis.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: May 28, 2002
    Assignee: Fujitsu Networks Communications, Inc.
    Inventors: Hamid Rezaie, Samuel Lisle, Masahiro Shinbashi, Kazuhiko Taniguchi, David Chen, Edward Sullivan, Mark Barratt, Richard DeBoer
  • Dialable data services/TDM bandwidth management
    Publication number: 20020021713
    Abstract: A communications device and method for effectively managing bandwidth within a telecommunications network carrying both time division multiplexed signals as well as data signals. The communications device having dialable TDM/cell and/or packet-based bandwidth management capability so that a network operator can select to manage bandwidth for any particular signal on in STS, VT, or cell or packet basis.
    Type: Application
    Filed: September 18, 2001
    Publication date: February 21, 2002
    Applicant: Fujitsu Network Communications, Inc., a California Corporation
    Inventors: Hamid Rezaie, Samuel Lisle, Masahiro Shinbashi, Kazuhiko Taniguchi, David Chen, Edward Sullivan, Mark Barratt, Richard DeBoer