Patents Assigned to John J. Gianfrancesco
  • Multi-functional valve
    Patent number: 5107896
    Abstract: A multi-functional valve has a combined safety, bypass, shut-off and inservice capability. The multi-functional valve is modified to attach directly to the cylinder of an exchange unit of water treatment. This multi-functional valve has a base member and a head portion. The base member fits onto the exchange cylinder. The head portion of the multi-functional valve includes a water receiving section capable of being tapped directly into the waterline. Mounted to the head section is a lever arm to move the valve to the desired position.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: April 28, 1992
    Assignee: John J. Gianfrancesco
    Inventor: Frank J. Otto