Patents by Inventor Gerald E. Wall

Gerald E. Wall 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).

  • Adjustable valve assembly
    Patent number: 4428396
    Abstract: A valve assembly has an elongated tubular body having a fluid passageway axially therethrough providing first and second end ports with a floating valve seat and an engageable poppet disposed in the fluid passageway of the body between the ports thereof and spring means disposed on the body for yieldably biasing the valve seat into engagement with the poppet and other spring means disposed in the body for yieldably biasing the poppet into engagement with the valve seat; a central abutment is disposed in the body between and engageable by the floating valve seat and poppet for restricting the movement of each of the floating valve seat and poppet toward the other thereof under the influence of both spring means.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: January 31, 1984
    Assignee: City Tank Corporation
    Inventor: Gerald E. Wall