Patents Assigned to Societe Anonyme Mecafrance
  • 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