Valve

Claim 2

A valve comprising, a body having a valve seat, a valve member cooperable with said seat and movable in both directions between open and closed positions to control flow through said valve seat, spaced internal grooves in the body with their adjacent walls converging outwardly of the groove, land means in the body intermediate said grooves, spaced dog means carried by the valve member and resiliently biased to alternately engage one of said spaced grooves and land means and position the valve member alternately in open or closed positions, said dog means when engaged with said groove expanding to a first selected diameter and when engaged with said land means contracting to a selected lesser second diameter, an actuator having a circumferential actuator flange thereon having a radial outer dimension between said first and second selected diameters, said spaced dog means having confronting shoulders engageable by said flange on said actuator member when a dog is in engagement with said land means to shift the valve member with reciprocation of the actuator member, each of said dog means releasing said actuator member flange as a dog means enters its cooperating groove permitting the actuator flange to move beyond the dog means while the other of said dog means remains retracted for engagement by said actuator member flange when reciprocated in the opposite direction.

Claim 3

A valve comprising, a body having a valve seat, a valve member cooperable with said seat and movable in both directions between open and closed positions to control flow through said valve seat, spaced internal grooves in the body with their adjacent side walls converging outwardly of the groove, land means in the body intermediate said grooves, spaced dog means carried by the valve member and resiliently biased to alternately engage one of said spaced grooves and land means and position the valve member alternatively in open or closed positions, said dog means when engaged with said groove expanding to a first selected diameter and when engaged with said land means contracted to a selected lesser second diameter, said spaced dog means having confronting shoulders engageable by a flange on an actuator member having a circumferential flange thereon having a radial outer dimension between said first and second selected diameters when a dog means is in engagement with said land means to shift the valve member with reciprocation of the actuator member, each of said dog means releasing said actuator member flange as a dog means enters its cooperating groove permitting the actuator flange to move beyond the dog means while the other of said dog means remains retracted for engagement by said actuator member flange when reciprocated in the opposite direction.

Claim 4

A valve comprising, a body having a valve seat, a valve member cooperable with said seat and movable in both directions between open and closed positions to control flow through said valve seat, spaced internal grooves in the body with their adjacent side walls converging outwardly of the groove, land means in the body intermediate said grooves, spaced dog means carried by the valve member and resiliently biased to alternately engage one of said spaced grooves and land means and position the valve member alternatively in open or closed positions, said dog means when engaged with said groove expanding to a first selected diameter and when engaged with said land means contracted to a selected lesser second diameter, said spaced dog means having confronting shoulders engageable by a flange on an actuator member having a circumferential flange thereon having a radial outer dimension between said first and second selected diameters when a dog means is in engagement with said land means to shift the valve member with reciprocation of the actuator member, each of said dog means releasing said actuator member flange as a dog means enters its cooperating groove permitting the actuator flange to move beyond the dog means while the other of said dog means remains retracted for engagement by said actuator member flange when reciprocated in the opposite direction.

Claim 5

A valve comprising, a body having a valve seat, a sleeve valve member cooperable with said seat and movable between open and closed positions to control flow through said valve seat, seal means on the exterior of said valve member, a valve shutter around the valve member, spaced grooves in the body, spaced dog means carried by the valve member and resiliently biased to alternately cooperate with one of said spaced grooves and position the valve member alternatively in open or closed positions, said spaced dog means having confronting shoulders engageable by a flange on an actuator member when a dog means is retracted to shift the valve member with reciprocation of the actuator member, each of said dog means releasing said actuator member as a dog means enters its cooperating groove, and cooperating lugs and shoulder means on the body and shutter and valve member latching the shutter to the body as the valve member moves toward open position until the seal means is within the shutter and then latching the shutter to the valve member, said lugs and shoulder means also latching the shutter to the valve member as it moves toward closed position until the shutter is closed and then latching the shutter to the body.

Claim 6

A valve comprising, a body having a valve seat, a sleeve valve member cooperable with said seat and movable between open and closed positions to control flow through said valve seat, seal means on the exterior of said valve member, a valve shutter around the valve member, spaced grooves in the body, spaced dog means carried by the valve member and resiliently biased to alternately cooperate with one of said spaced grooves and position the valve member alternatively in open or closed positions, said spaced dog means having confronting shoulders engageable by a flange on an actuator member when a dog means is retracted to shift the valve member with reciprocation of the actuator member, each of said dog means releasing said actuator member as a dog means enters its cooperating groove, and cooperating lugs and shoulder means on the body and shutter and valve member latching the shutter to the body as the valve member moves toward open position until the seal means is within the shutter and then latching the shutter to the valve member, said lugs and shoulder means also latching the shutter to the valve member as it moves toward closed position until the shutter is closed and then latching the shutter to the body.

Claim 7

A sleeve valve comprising, a tubular body having a valve seat therein, port means extending through the wall of the tubular body, a tubular sleeve valve member in said body cooperable with said seat and movable between open and closed positions to control flow through said ports, seal means on the exterior of the valve member, spaced grooves in the bore through the tubular body, a pair of spaced collets carried by said valve member and providing dog means resiliently urged outwardly to alternately cooperate with one of said spaced grooves and position the valve member alternately in open or closed positions, said spaced dog means having confronting internal shoulders engageable by a flange on an actuator member when a dog means is retracted to shift the valve member with reciprocation of the actuator member, each of said dog means releasing said actuator member as a dog means enters its cooperating groove, a valve shutter around the valve member, and cooperating lugs and shoulder means on the body and shutter and valve member latching the shutter to the body as the valve member moves toward open position until the seal means is within the shutter and then latching the shutter to the valve member, said lugs and shoulder means also latching the shutter to the valve member as it moves toward closed position until the shutter is closed and then latching the shutter to the body.

Claim 8

A sleeve valve comprising, a tubular body having a valve seat therein, port means extending through the wall of the tubular body, a tubular sleeve valve member in said body cooperable with said seat and movable between open and closed positions to control flow through said ports, seal means on the exterior of the valve member, spaced grooves in the bore through the tubular body, a pair of spaced collets carried by said valve member and providing dog means resiliently urged outwardly to alternately cooperate with one of said spaced grooves and position the valve member alternately in open or closed positions, said spaced dog means having confronting internal shoulders engageable by a flange on an actuator member when a dog means is retracted to shift the valve member with reciprocation of the actuator member, each of said dog means releasing said actuator member as a dog means enters its cooperating groove, a valve shutter around the valve member, and cooperating lugs and shoulder means on the body and shutter and valve member latching the shutter to the body as the valve member moves toward open position until the seal means is within the shutter and then latching the shutter to the valve member, said lugs and shoulder means also latching the shutter to the valve member as it moves toward closed position until the shutter is closed and then latching the shutter to the body.

Claim 9

A valve comprising, a body having a valve seat therein, a sleeve valve member in said body cooperable with said seat and movable between open and closed positions to control flow through said valve seat, seal means on the exterior of the valve member, a valve shutter around the valve member, spaced grooves in the body with a land therebetween, spaced dog means carried by the valve member and movable laterally to alternately engage one of said spaced grooves and the land therebetween to vary the lateral position of the spaced dog means, means urging said dog means into said grooves, said spaced dog means having confronting shoulders engageable by a flange on an actuator member when a dog means is engaged by said land to shift the valve member with reciprocation of the actuator member, each of said dog means releasing said actuator member as a dog means enters its cooperating groove, cooperating lugs and shoulder means on the body and shutter and valve member latching the shutter to the body as the valve member moves toward open position until the seal means is within the shutter and then latching the shutter to the valve member, said lugs and shoulder means also latching the shutter to the valve member as it moves toward closed position until the shutter is closed and then latching the shutter to the body.

Claim 10

A valve comprising, a body having a valve seat therein, a sleeve valve member in said body cooperable with said seat and movable between open and closed positions to control flow through said valve seat, seal means on the exterior of the valve member, a valve shutter around the valve member, spaced grooves in the body with a land therebetween, spaced dog means carried by the valve member and movable laterally to alternately engage one of said spaced grooves and the land therebetween to vary the lateral position of the spaced dog means, means urging said dog means into said grooves, said spaced dog means having confronting shoulders engageable by a flange on an actuator member when a dog means is engaged by said land to shift the valve member with reciprocation of the actuator member, each of said dog means releasing said actuator member as a dog means enters its cooperating groove, cooperating lugs and shoulder means on the body and shutter and valve member latching the shutter to the body as the valve member moves toward open position until the seal means is within the shutter and then latching the shutter to the valve member, said lugs and shoulder means also latching the shutter to the valve member as it moves toward closed position until the shutter is closed and then latching the shutter to the body.