Reciprocal valve and actuator

Claim 2

A valve comprising a cap, the cap having an open-ended bore; and at least one aperture formed in the wall of said bore, a valve member movable inside said bore, said valve member comprising a central body portion having a diameter less than the diameter of the bore, a seal at each end of the central body portion, the valve member being adapted to be located in the cap wherein the aperture in the cap is located between the two seals on the central body portion, said seals closely engaging the inside surface of the bore of the cap, said valve member being capable of being moved inwardly of said bore away from the open end thereof so that said aperture is open to the open end of the cap, means to move said valve member between open and closed positions of the valve, and means on the cap engaging and tending to deflect a portion of one of the seals to avoid contact with the edges of the aperture.

Claim 3

The valve of claim 1 including a closed end formed on the inner end of said bore in said cap the means to move said valve member between the opened and closed positions of the valve comprising a frame, a rod on said frame, said rod being movable relative to said frame and extending therefrom, the central body portion of the valve member being hollow and the rod extending through the same to bottom on the closed end of the cap and means associated with said rod for engaging and moving said valve member to a position wherein one end of the valve member is adjacent the closed end of the cap.

Claim 4

The valve of claim 2 including separate means associated with said rod for moving said valve member in a reverse direction to close the valve upon retraction of the rod.

Claim 5

The valve of claim 3 including a connection for a source of fluid under pressure to lead said fluid into the cap and through the aperture therein.

Claim 6

The combination of a valve for a tank, with means for opening and closing the valve including means for injecting fluid material into said tank through said valve, said valve comprising a cap in said tank, said cap having a bore formed with a closed end interiorly of the tank and being open at the periphery of the tank, apertures in the wall of said bore communicating with the interior of said tank, a movable member in the bore of said cap, said movable member comprising a generally cylindrical hollow body portion having a flange at each end, said flanges being spaced on said body portion such that when the member is in the valve closed position the apertures are located between said flanges the peripheries of both flanges engaging the interior of the bore so as to close said apertures to the atmosphere, said movable member being adapted to be pushed inwardly of said cap so that one of said flanges clears said apertures and allows the same to communicate with the atmosphere, the means for opening and closing the valve including means for moving said movable member between positions where said apertures are opened or selectively closed, and means causing gas under pressure to flow into said tank through said apertures when the member is inward of the cap in a position where said flanGe clears the apertures.

Claim 7

The combination of a valve for a tank, with means for opening and closing the valve including means for injecting fluid material into said tank through said valve, said valve comprising a cap in said tank, said cap having a bore formed with a closed end interiorly of the tank and being open at the periphery of the tank, apertures in the wall of said bore communicating with the interior of said tank, a movable member in the bore of said cap, said movable member comprising a generally cylindrical hollow body portion having a flange at each end, said flanges being spaced on said body portion such that when the member is in the valve closed position the apertures are located between said flanges the peripheries of both flanges engaging the interior of the bore so as to close said apertures to the atmosphere, said movable member being adapted to be pushed inwardly of said cap so that one of said flanges clears said apertures and allows the same to communicate with the atmosphere, the means for opening and closing the valve including means for moving said movable member between positions where said apertures are opened or selectively closed, and means causing gas under pressure to flow into said tank through said apertures when the member is inward of the cap in a position where said flanGe clears the apertures.

Claim 8

The combination of claim 5 wherein the means for moving said movable member includes a rod, interengaging means on the rod and the movable member comprising an inwardly directed ridge in the member, expanding means on the rod, and means causing engagement of said expanding means with said ridge when expanded with respect to said rod such that the member may be pulled from the closed end of the cap to the closed position of the valve with respect to said apertures.