Patents by Inventor Robert R. Kooiman

Robert R. Kooiman 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 with a substantially flat overpressure stop for the measuring diaphragm
    Patent number: 4572000
    Abstract: A transducer for sensing pressure has a first and a second pressure chamber for sensing pressure and a center stop which has two substantially flat faces, each face cooperating with an associated sensor diaphragm which forms the first and the second pressure chamber. The two chambers are fluidically coupled together. Each of the diaphragms is responsive to a pressure P1 or P2 respectively and the transducer is easily configured to sense differential, gage or absolute pressure. When the pressure to be sensed exceeds a predetermined value the affected sensing diaphragm is supported by the respective substantial flat face of the center stop.
    Type: Grant
    Filed: December 9, 1983
    Date of Patent: February 25, 1986
    Assignee: Rosemount Inc.
    Inventor: Robert R. Kooiman