Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2007-11-27
2007-11-27
Fox, John (Department: 3753)
Fluid handling
Systems
Multi-way valve unit
C137S590000, C137S614180, C251S182000
Reexamination Certificate
active
11173047
ABSTRACT:
A multi-position fuel valve includes a main body having an enclosed chamber with a number of inlet ports and an outlet port and associated seats in the chamber. Disposed inside the chamber is a revolving rotor that is connected to a selector handle located outside the chamber. The rotor provides a possible passageway between each of the inlet ports and the outlet port. The handle can rotate a maximum 180 degrees, and the valve has a pair of inlet sections and three-positions with an “off” position approximately midway between the other two positions. A pair of balls are positioned in the rotor and lodge in the plurality of seats or elsewhere in the chamber. When this occurs a certain portion of the passageway is cut off meaning there is no fluid flow from at least one of inlet ports through the outlet port. A compression spring with opposing ends bearing against the balls maintains the balls lodged in the seats, and releasably fixes the position of the rotor and handle. The valve further has a number of swiveling extension sections connected to the ports for inlet or outlet hoses, such that the valve can be mounted remote from the fuel supply and/or carburetor and connecting hosed routed in most any direction.
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Cohen Daniel
Golan Iian Z.
Fox John
Lauson Robert J.
Lauson & Schewe LLP
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