Patents by Inventor William A. Hagins

William A. Hagins 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).

  • Pyroelectric calorimeter
    Patent number: 5030012
    Abstract: A pyroelectric calorimeter including a detector having a support member with a tapered through-hole therein, a first polyester film positioned on said support member, across said through-hole, an aluminum foil member located on an opposite side of said polyester film from said support member, a pyroelectric film located on an opposite side of said aluminum foil member from said first polyester film, at least one additional polyester film located on an opposite side of said pyroelectric film from said aluminum foil member, two pyroelectrical leads connected to opposite sides of said pyroelectric film, a support for the detector and electrical circuitry for receiving a signal produced from the detector and for generating an output signal therefrom.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: July 9, 1991
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: William A. Hagins, Shuko Yoshikami
  • Pyroelectric calorimeter
    Patent number: 4940896
    Abstract: A pyroelectric detector comprises a support member having a tapered through-hole therein, a first polyester film positioned on said support member, across said through-hole, an aluminum foil member located on an opposite side of said polyester film from said support member, a pyroelectric film located on an opposite side of said aluminum foil member from said first polyester film, at least one additional polyester film located on an opposite side of said pyroelectric film from said aluminum foil member, and two pyroelectrical leads connected to opposite sides of said pyroelectric film.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: July 10, 1990
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: William A. Hagins, Shuko Yoshikami