Patents by Inventor Johann Holst

Johann Holst 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 and apparatus for measuring peak pressure in fluids
    Patent number: 3943768
    Abstract: The pressure of a fluid is applied to an elongated resiliently yieldable element in direction transverse to the elongation thereof, so as to obtain a yielding of the element which is proportional to the fluid pressure. The degree of deflection is measured with an indicator device, and the indicator of the indicator device is arrested at the point at which it indicates maximum deflection. An apparatus for carrying out the method is also disclosed.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: March 16, 1976
    Assignee: H. Maihak AG
    Inventors: Johann Holst, Horst Rusbuldt