Patents by Inventor Wallace Trochesset

Wallace Trochesset 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).

  • Transducer assembly
    Patent number: 7795783
    Abstract: Transducer assemblies and methods of replacing having a housing, a removable diaphragm, and a sealing diaphragm. The transducer assembly may be used with a spool piece to prevent fluid from escaping from the spool piece when parts of the transducer assembly are removed.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: September 14, 2010
    Assignee: Thermo Fisher Scientific Inc.
    Inventors: Wallace Trochesset, Prakash Mistry, Peter E. Zasowski
  • Transducer assembly
    Publication number: 20070253582
    Abstract: Transducer assemblies and methods of replacing having a housing, a removable diaphragm, and a sealing diaphragm. The transducer assembly may be used with a spool piece to prevent fluid from escaping from the spool piece when parts of the transducer assembly are removed.
    Type: Application
    Filed: April 26, 2006
    Publication date: November 1, 2007
    Applicant: THERMO ELECTRON CORPORATION
    Inventors: Wallace Trochesset, Prakash Mistry, Peter Zasowski
  • Integrated valve design for gas chromatograph
    Publication number: 20020029802
    Abstract: A gas chromatograph with multiple valves is disclosed. An embodiment of the multi-valve gas chromatograph includes multiple valves and multiple thermal conductivity detectors (TCD's). This allows separation and measurement of a gas sample in one compact integrated unit.
    Type: Application
    Filed: May 7, 2001
    Publication date: March 14, 2002
    Inventor: Wallace Trochesset
  • Integrated valve design for gas chromatograph
    Patent number: 6227034
    Abstract: A gas chromatograph with multiple valves is disclosed. An embodiment of the multi-valve gas chromatograph includes multiple valves and multiple thermal conductivity detectors (TCD's). This allows separation and measurement of a gas sample in one compact integrated unit. Other features may also be present. For example, a first heating zone may include a band heater placed around the multi-valve block to heat the carrier gas and to keep the multi-valve block at a desired temperature. A second heating zone may include a spool and a cartridge heater to heat the columns through which the gas sample flows. Two sets of screws, one through the top of the multi-valve and one through the bottom, may be included to simplify maintenance of the multi-valve system. Insulation defining an oven can be placed around the assembly to stabilize the temperature of the multi-valve assembly.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: May 8, 2001
    Assignee: Daniel Industries, Inc.
    Inventor: Wallace Trochesset