Longitudinally Movable Patents (Class 142/15)
  • Patent number: 9222593
    Abstract: A solenoid actuated pilot valve includes a pilot valve housing defining a pilot valve chamber and a solenoid. The solenoid includes and end cap connected to the pilot valve housing, a reciprocable plunger, and a piston having a shaft with a first end connected to and end of the plunger and a second end connected to a piston head. The end cap has a bore through which the shaft of the piston reciprocates and a first port separate from the bore. A first seal on a first side of the piston head is provided for sealing a first end of the first port. A second seal on a second side of the piston head is provided for sealing a first end of a second port in the pilot valve housing.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: December 29, 2015
    Assignee: Hunter Industries, Inc.
    Inventor: Michael L. Clark