Patents by Inventor Alexander J. Esseniyi

Alexander J. Esseniyi 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).

  • Air shift conversion apparatus for manual valves
    Patent number: 4585024
    Abstract: An air actuator device is provided for manually operable hydraulic valves having a valve spool moving in a bore in a valve housing in the form of an actuator housing adapted for attachment on the valve housing and having a bore carrying a piston coaxially engageable with the spool end, spaced openings in the actuator housing communicating with the bore therein to introduce air to act on opposite sides of the piston and resilient means on at least one side of the piston normally urging the piston and spool to a closed position.
    Type: Grant
    Filed: August 28, 1984
    Date of Patent: April 29, 1986
    Assignee: Commercial Shearing, Inc.
    Inventor: Alexander J. Esseniyi