Dual position valve

Claim 2

In a valve, a valve body having an inlet port and an outlet port, a poppet adapted to seat on either of said ports when aligned therewith, actuator means comprising a rod attached at one of its ends in articulated manner to an actuator piston and its other end pivotally attached to the poppet to move it selectively from onto and away from said ports, journal means associated with the poppet, a face on said poppet adapted to seat independently on each of said ports comprising a segment of a sphere the center of which is located below the axis of rotation of the journal means but lies in the same vertical plane therewith when the valve is seated on the inlet port, and means for relocating the central axis of the journal means and thus aligning the poppet with the outlet port.

Claim 3

The invention set forth in claim 1 with the pivotal attachment to the poppet comprising a pin in an elongated hole, whereby the pin is free to move off the dead center position should that occur.

Claim 4

In a valve, a valve body having an inlet port and an outlet port, a poppet adapted to seat on either of said ports when aligned therewith, actuator means associated with the poppet to move it selectively from onto and away from said ports, journal means associated with the poppet, a face on said poppet adapted to seat independently on each of said ports comprising a segment of a sphere the center of which is located below the axis of rotation of the journal means but lies in the same vertical plane therewith when the valve is seated on the inlet port, and means for relocating the central axis of the journal means including a bushing rotatably mounted in the body and eccentrically supporting the journal means, locking means preventing rotation of the bushing in the body during movement of the poPpet from a position closing the inlet port to a fully open position, means freeing the locking means to allow rotation of the bushing during a period of movement of the poppet from the fully open position to a position closing the outlet port while simultaneously locking the journal means to the bushing, means to cause rotation of the bushing during the same period and means to stop the rotation thereof upon the closing of the outlet, whereby the axis of the journal means is relocated and brought into such alignment that the face of the poppet seats correctly on the outlet port.

Claim 5

In a valve, a valve body having an inlet port and an outlet port, a poppet adapted to seat on either of said ports when aligned therewith, actuator means associated with the poppet to move it selectively from onto and away from said ports, journal means associated with the poppet, a face on said poppet adapted to seat independently on each of said ports comprising a segment of a sphere the center of which is located below the axis of rotation of the journal means but lies in the same vertical plane therewith when the valve is seated on the inlet port, and means for relocating the central axis of the journal means including a bushing rotatably mounted in the body and eccentrically supporting the journal means, locking means preventing rotation of the bushing in the body during movement of the poPpet from a position closing the inlet port to a fully open position, means freeing the locking means to allow rotation of the bushing during a period of movement of the poppet from the fully open position to a position closing the outlet port while simultaneously locking the journal means to the bushing, means to cause rotation of the bushing during the same period and means to stop the rotation thereof upon the closing of the outlet, whereby the axis of the journal means is relocated and brought into such alignment that the face of the poppet seats correctly on the outlet port.

Claim 6

The invention set forth in claim 3 with stop means including a pin fastened in the body and a shoulder on said bushing against which said pin strikes.

Claim 7

The invention set forth in claim 3 with the rotation of the bushing limited to 90*.

Claim 8

The invention set forth in claim 3 with the locking means comprising a free ball slidable in a cylindrical aperture in the periphery of the bushing, the aperture terminating at one end at the body and at the other end at the journal means recess means in the body and means in the journal to partially and alternatively receive the ball, and the ball being larger in diameter than the length of the aperture but smaller than the receiving depth of the recess plus the length of the aperture, whereby when the bushing is prevented from rotation in the body by the ball extending into the body recess, the journal is free to rotate in the bushing and when the journal is prevented from rotation in the bushing the bushing is free to rotate in the body.

Claim 9

The invention set forth in claim 6 with a drive pin fixedly attached to the journal means, an arcuate opening of 90* in the bushing through which the pin is adapted to pass, and a wall at each end of said opening adapted to be struck by said pin, whereby the bushing remains stationary until an end wall of said opening is in contact with and is urged to move by said pin.

Claim 10

The invention set forth in claim 4 with an arcuate opening in said bushing through which a stop pin fixedly attached to the body is adapted to pass, and a wall at each end of said second opening adapted to be struck by said pin, whereby the bushing can rotate only between the end walls until one or the other is struck by the pin.