Patents by Inventor Robert A. Rothstein

Robert A. Rothstein 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).

  • Variable displacement peristaltic pump
    Patent number: 4547136
    Abstract: A variable displacement peristaltic pump includes an stator carrying a flexible resilient tube, and a spoke-like array of pinch rollers for cooperation with the flexible tube. The rollers extend radially of the axis of a driven rotor, the stator and tube extending tangent to the axis of rotation of the rotor and being adjustable radially of the rotor axis, thus providing for adjustment and calibration of the pump output.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: October 15, 1985
    Assignee: Manostat Corporation
    Inventor: Robert A. Rothstein