Patents by Inventor Jonathan S. Levin

Jonathan S. Levin 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).

  • Flow controller
    Patent number: 4178974
    Abstract: Fluid is forced from a reservoir into an evacuated chamber by forcing a plunger into the reservoir. When it is desired accurately to stop the flow of the fluid, the plunger is withdrawn and concurrently the pressure in the reservoir is reduced to that of the evacuated chamber by means of vacuum pump connected to the reservoir.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: December 18, 1979
    Assignee: RCA Corporation
    Inventor: Jonathan S. Levin