Patents by Inventor Michael Terry Riggs

Michael Terry Riggs 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).

  • Method for fabricating a pressure-wave sensor with a leveling support element
    Patent number: 6629343
    Abstract: A method for fabricating a pressure-waveform sensor with a leveling support element. One embodiment provides a pressure-waveform sensor having a housing, a support element, and a piezoelectric element having a first end secured between the support element and the housing, and a second end in a cantilevered orientation. The support element and the piezoelectric element together form a plurality of support regions to level the piezoelectric element and relative to the housing. In some embodiments, the support element includes a ring having three slots spaced apart on one face of the ring, or one or more support regions formed with a shim having a thickness equal to a thickness of the piezoelectric device, or support regions that are integral to the support element. Another aspect provides a method for fabricating a pressure-waveform sensor.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: October 7, 2003
    Assignee: Hypertension Diagnostics, Inc.
    Inventors: Charles F. Chesney, Michael Terry Riggs, Charles A. Lemaire
  • Pressure-wave sensor with a leveling support element
    Patent number: 6585659
    Abstract: A method and an apparatus for fabricating a pressure-waveform sensor with a leveling support element. One embodiment provides a pressure-waveform sensor having a housing, a support element, and a piezoelectric element having a first end secured between the support element and the housing, and a second end in a cantilevered orientation. The support element and the piezoelectric element together form a plurality of support regions to level the piezoelectric element and relative to the housing. In some embodiments, the support element includes a ring having three slots spaced apart on one face of the ring, or one or more support regions formed with a shim having a thickness equal to a thickness of the piezoelectric device, or support regions that are integral to the support element. Another aspect provides a method for fabricating a pressure-waveform sensor.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: July 1, 2003
    Assignee: Hypertension Diagnostics, Inc.
    Inventors: Charles F. Chesney, Michael Terry Riggs, Charles A. Lemaire
  • Method and apparatus for fabricating a pressure-wave sensor with a leveling support element
    Patent number: 6331161
    Abstract: A method and an apparatus for fabricating a pressure-waveform sensor with a leveling support element. One embodiment provides a pressure-waveform sensor having a housing, a support element, and a piezoelectric element having a first end secured between the support element and the housing, and a second end in a cantilevered orientation. The support element and the piezoelectric element together form a plurality of support regions to level the piezoelectric element and relative to the housing. In some embodiments, the support element includes a ring having three slots spaced apart on one face of the ring, or one or more support regions formed with a shim having a thickness equal to a thickness of the piezoelectric device, or support regions that are integral to the support element. Another aspect provides a method for fabricating a pressure-waveform sensor.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: December 18, 2001
    Assignee: Hypertension Diagnostics, Inc
    Inventors: Charles F. Chesney, Michael Terry Riggs, Charles A. Lemaire