Patents by Inventor Mark A. Lutz

Mark A. Lutz 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: 8099856
    Abstract: A crimping system for a fill tube of an industrial process transmitter system comprises a collar, a fill tube and crimp jaws. The collar comprises a passageway for receiving the fill tube, and a seat surrounding the passageway. The fill tube extends through the passageway and seat of the collar. The crimp jaws are positioned within the seat to surround the fill tube, and are inserted into the seat to crimp the fill tube.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: January 24, 2012
    Assignee: Rosemount Inc.
    Inventor: Mark A. Lutz
  • Publication number: 20090165424
    Abstract: A crimping system for a fill tube of an industrial process transmitter system comprises a collar, a fill tube and crimp jaws. The collar comprises a passageway for receiving the fill tube, and a seat surrounding the passageway. The fill tube extends through the passageway and seat of the collar. The crimp jaws are positioned within the seat to surround the fill tube, and are inserted into the seat to crimp the fill tube.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Applicant: Rosemount Inc.
    Inventor: Mark A. Lutz
  • Patent number: 6520020
    Abstract: A pressure sensor integrally formed in the shape of a beam around a central channel. The beam has an integral blind end that is pressurized by the fluid. The beam has an opposite end that is shaped to provide a stepped corner with a gap opening at the base of the stepped corner, where the gap and isolated from the fluid. A sensing film in the channel adjacent the blind end has an electrical parameter that varies with pressure and electrical leads that extend from the channel and out the gap. A seal fills the gap around the leads and the seal fills a portion of the stepped corner. The sensor is preferably formed by direct bonding of single crystal alumina layers. Applications include industrial pressure transmitters, aerospace and turbine engine pressure sensing.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: February 18, 2003
    Assignee: Rosemount Inc.
    Inventors: Mark A. Lutz, Roger Frick, Fred C. Sittler, Adrian C. Toy
  • Patent number: 6516671
    Abstract: A sensor has an electrical interconnect grown in a cavity between first and second layers that are bonded together. Electrically conductive grain growth material is selectively deposited on at least one of two electrically conductive film interconnect regions that face one another across the cavity. The grain growth material is then grown upon predetermined conditions to form the electrical interconnect between the two interconnect regions. A sensor element deposited in the cavity is electrically coupled between the layers by the interconnect. The grain growth material can be tantalum that is heated after the layers are bonded to grow grains that interconnect the electrically conductive films.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: February 11, 2003
    Assignee: Rosemount Inc.
    Inventors: Mark G. Romo, Stanley E. Rud, Jr., Mark A. Lutz, Fred C. Sittler, Adrian C. Toy
  • Publication number: 20030010131
    Abstract: A sensor has an electrical interconnect grown in a cavity between first and second layers that are bonded together. Electrically conductive grain growth material is selectively deposited on at least one of two electrically conductive film interconnect regions that face one another across the cavity. The grain growth material is then grown upon predetermined conditions to form the electrical interconnect between the two interconnect regions. A sensor element deposited in the cavity is electrically coupled between the layers by the interconnect. The grain growth material can be tantalum that is heated after the layers are bonded to grow grains that interconnect the electrically conductive films.
    Type: Application
    Filed: January 5, 2001
    Publication date: January 16, 2003
    Inventors: Mark G. Romo, Stanley E. Rud, Mark A. Lutz, Fred C. Sittler, Adrian C. Toy
  • Patent number: 6425290
    Abstract: A pressure sensor is provided for measuring a pressure difference between two fluids which does not require isolation fluid. The pressure sensor includes a diaphragm support member having an outer periphery and diaphragms coupled thereto. Movement of the diaphragms are the movement of a moveable member. The movement can be sensed to determine the applied differential pressure. The coupling member is joined to the outer periphery with a web. The web is recessed from opposed outwardly facing surfaces of the outer periphery, and first and second diaphragms disposed on opposite sides of the diaphragm support member. Each diaphragm is joined to the outer periphery and to the coupling member.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: July 30, 2002
    Assignee: Rosemount Inc.
    Inventors: Charles R. Willcox, Mark A. Lutz, Mark G. Romo, Stanley E. Rud, Jr.
  • Publication number: 20010032515
    Abstract: A pressure sensor is provided for measuring a pressure difference between two fluids which does not require isolation fluid. The pressure sensor includes a diaphragm support member having an outer periphery and diaphragms coupled thereto. Movement of the diaphragms are the movement of a moveable member. The movement can be sensed to determine the applied differential pressure. The coupling member is joined to the outer periphery with a web. The web is recessed from opposed outwardly facing surfaces of the outer periphery, and first and second diaphragms disposed on opposite sides of the diaphragm support member. Each diaphragm is joined to the outer periphery and to the coupling member.
    Type: Application
    Filed: February 9, 2001
    Publication date: October 25, 2001
    Inventors: Charles R. Willcox, Mark A. Lutz, Mark G. Romo, Stanley E. Rud
  • Patent number: 5333504
    Abstract: A low range pressure sensor includes a base plate of brittle material, and a diaphragm plate mounted on the base plate and sealed around a periphery to the base plate. Pressures are introduced to cause the diaphragm to deflect toward the base plate, and the deflection of the diaphragm is sensed through strain gauges to provide an indication of the pressure. The diaphragm is provided with a plurality of individual support posts on a side facing the base plate, so that when the diaphragm is deflected toward the base plate under high overpressures the support posts will support the diaphragm against movement to avoid failure or breakage of the diaphragm. The number of support posts can be varied as desired.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: August 2, 1994
    Assignee: Rosemount Inc.
    Inventors: Mark A. Lutz, William B. Krueger