Patents Assigned to Rolock Incorporated
  • Gas density detecting apparatus
    Patent number: 3981178
    Abstract: There is disclosed an apparatus and process for detecting changes in the density of a gas wherein the gas to be measured is introduced into a closed casing at the rotary axis of a hollow disc wheel rotating within the casing. The disc wheel is provided with a plurality of radial vanes and the gas is centrifuged by the rotating disc. A Pitot tube positioned at the periphery of the disc measures the force exerted by the centrifuged gas to ascertain its mass which is then compared with a reference pressure.
    Type: Grant
    Filed: April 11, 1974
    Date of Patent: September 21, 1976
    Assignee: Rolock Incorporated
    Inventors: Lloyd R. Jones, Frederick W. Roberts, deceased