Patents Assigned to Spirax-Sargo, Limited
  • Float operated devices
    Patent number: 6174138
    Abstract: A float operated device such as a pressure powered pump has a chamber 30 in which a float 32 is movable. The float 32 has a low profile form, having an aspect ratio greater than 2. The float operates a toggle mechanism 46 comprising an input lever 34 and an output lever 48 which are pivotable about spaced pivot locations 38, 50. A spring 54 acts between the input and output levers 34 and 48 to provide the toggling action. The toggle mechanism operates a valve arrangement 62.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: January 16, 2001
    Assignee: Spirax-Sargo, Limited
    Inventor: Dean Jeffrey Stephens