Patents by Inventor William H. Hayes, Jr.

William H. Hayes, Jr. 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).

  • Pressure sensor
    Patent number: 4231376
    Abstract: A pressure sensor apparatus primarily for sensing pressure in a body cavity such as the cranium, bladder or vena cava of an animal or human comprising a housing having a bellows defining a chamber within the housing. Means is provided for communicating pressure from the body cavity to the chamber. A radioactive material is housed in the housing and at least partially surrounded by radiation shielding. The radiation shielding shields the radioactive material as a function of the pressure sensed by the flexible member and the radioactivity is sensed by a radiation detector.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: November 4, 1980
    Assignee: Hittman Corporation
    Inventors: Warren C. Lyon, William H. Hayes, Jr.
  • Pressure sensor
    Patent number: 4027661
    Abstract: A pressure sensor apparatus primarily for sensing pressure in a body cavity such as the cranium, bladder or vena cava of an animal or human comprising a housing having a bellows defining a chamber within the housing. Means is provided for communicating pressure from the body cavity to the chamber. A radioactive material is housed in the housing and at least partially surrounded by radiation shielding. The radiation shielding shields the radioactive material as a function of the pressure sensed by the flexible member and the radioactivity is sensed by a radiation detector.
    Type: Grant
    Filed: July 16, 1974
    Date of Patent: June 7, 1977
    Assignee: Hittman Corporation
    Inventors: Warren Charles Lyon, William H. Hayes, Jr.