Patents by Inventor by Stanley A. Weise, executor

by Stanley A. Weise, executor 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).

  • Non-flowing pressure responsive pilot valve
    Patent number: 4609008
    Abstract: A non-flowing pilot valve (16) for a control valve (C) in a main flow line (F) having a body (27) with an inlet fluid chamber (76), an outlet fluid chamber (106) and an intermediate fluid chamber (104) between the inlet fluid chamber (76) and the outlet fluid chamber (106). Diaphragm (34) in the fluid inlet chamber (76) is secured to a piston slidable body (40) extending within intermediate fluid chamber (104) and having a valve seat (88) thereon between inlet fluid chamber (76) and intermediate fluid chamber (104). A second fixed valve seat (64) is provided within the body (40) between the intermediate fluid chamber (104) and the outlet fluid chamber (106). A valve spool (92) has a pair of O-ring seals (94, 96) thereabout adapted to seal against the valve seats (88, 64).
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: September 2, 1986
    Assignee: Anderson-Greenwood USA, Inc.
    Inventors: William L. Anderson, Jr., Michael D. McNeely, Irvin B. Weise, deceased, by Stanley A. Weise, executor