Patents by Inventor Daniel P. Maurer

Daniel P. Maurer 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).

  • Control device for a valve with a spiral spring
    Patent number: 5213183
    Abstract: Control device for a valve provided with a spiral spring whose release brings about rotation of the drive shaft of the stopper of the valve. Rotation of the auxiliary shaft of the control device is dependent upon a shock absorbing device, wherein rotation of the auxiliary shaft drives a rotating piston arranged in a sealed housing containing a viscous fluid.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: May 25, 1993
    Assignee: Societe Anonyme Mecafrance
    Inventor: Daniel P. Maurer