Patents Assigned to Alexander Controls Limited
  • Apparatus for controlling the flow of gas
    Patent number: 4771808
    Abstract: An electro-magnetically controlled gas valve has an armature supported by a flexible diaphragm, with the armature and diaphragm being in the magnetic flux path of the electro-magnetic coil, and the armature carrying a resilient seal for engagement with a conical seat forming part of the gas flow path through the valve.
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: September 20, 1988
    Assignee: Alexander Controls Limited
    Inventor: Keith P. Rodger