Automatic refill device having fluidically operated control

Claim 2

A fluid valve mechanism comprising in combination: A. a control chamber having, a. a first outlet leg, b. a second outlet leg, c. a primary fluid inlet, and d. a control fluid port; and B. a valve chamber having, a. a first inlet at one end, said valve chamber inlet being in communication with said control chamber second outlet leg, b. valve chamber outlet at the other end, c. a second inlet intermediate said first valve chamber inlet and said valve chamber outlet, said second valve chamber inlet being in communication with said control chamber first outlet leg, d. first valve means in said valve chamber, said valve means being responsive to flow through said first valve chamber outlet, to move toward said valve chamber outlet at said other end, thereby closing said valve chamber outlet, and being biased in the closed position by fluid in both said first outlet leg and said second outlet leg.

Claim 3

The structure of claim 1, wherein said first valve means is a ball valve having a seat at said first outlet.

Claim 4

The structure of claim 1, wherein said control port is positioned proximate said primary fluid inlet.

Claim 5

The structure of claim 1, wherein said valve chamber comprises a restraining means for restricting the movement of said first valve means between a first closed position, in sealing engagement with said first valve chamber outlet and a second position, proximate said first valve chamber inlet.

Claim 6

The structure of claim 1, wherein said valve chamber comprises a restraining means for restricting the movement of said first valve means between a first closed position, in sealing engagement with said first valve chamber outlet and a second position, proximate said first valve chamber inlet.

Claim 7

The structure of claim 1, further comprising a second valve means for controlling the flow through said control fluid port.

Claim 8

The structure of claim 6, wherein said second valve means is a ball valve.

Claim 9

The structure of claim 7, further comprising a second valve chamber housing said second valve means, said chamber having an inlet passage at one end and as outlet passage at the other end, and a ball valve seat at said inlet end.

Claim 10

The structure of claim 8, further comprising a flexible conduit connected to said inlet end of said second valve chamber.

Claim 11

A fluidic valve mechanism comprising in combination: A. a control chamber having, a. first flow passage means b. second flow passage means, said Second flow passage means diverging from said first flow passage means c. primary fluid inlet d. control fluid port e. primary fluid outlet, said second flow means providing fluid communication between said primary fluid inlet and said primary fluid outlet, and said first flow passage means is positioned between said primary fluid inlet and said primary fluid outlet. B. a valve chamber, said valve chamber being positioned between said primary fluid outlet and both said first flow passage means and said second flow passage means and having a. a first end, said first end being intermediate said first flow means and said primary fluid outlet b. a second end, said second end being intermediate said second flow means and said primary fluid outlet c. first valve means, said first valve means permitting flow from said primary fluid inlet through said second flow passage means and out said primary fluid outlet when positioned at said first end and being movable from said first end to said second end in response to flow through said first flow passage means of said control chamber to close said primary fluid outlet, thereby terminating all fluid flow.

Claim 12

A fluidic valve mechanism comprising in combination: A. a control chamber having, a. first flow passage means b. second flow passage means, said Second flow passage means diverging from said first flow passage means c. primary fluid inlet d. control fluid port e. primary fluid outlet, said second flow means providing fluid communication between said primary fluid inlet and said primary fluid outlet, and said first flow passage means is positioned between said primary fluid inlet and said primary fluid outlet. B. a valve chamber, said valve chamber being positioned between said primary fluid outlet and both said first flow passage means and said second flow passage means and having a. a first end, said first end being intermediate said first flow means and said primary fluid outlet b. a second end, said second end being intermediate said second flow means and said primary fluid outlet c. first valve means, said first valve means permitting flow from said primary fluid inlet through said second flow passage means and out said primary fluid outlet when positioned at said first end and being movable from said first end to said second end in response to flow through said first flow passage means of said control chamber to close said primary fluid outlet, thereby terminating all fluid flow.

Claim 13

The structure of claim 10, wherein said first valve means is a ball valve having a seat at said first outlet.

Claim 14

The structure of claim 10, wherein said control port is positioned proximate said primary fluid inlet.

Claim 15

The structure of claim 10, wherein said valve chamber first end is upstream of the downstream end of said second flow passage means and said valve chamber second end is downstream of the downstream end of said second flow passage means.

Claim 16

The structure of claim 10, further comprising a second valve means for controlling the flow through said control fluid port.

Claim 17

The structure of claim 14, wherein said second valve means is a ball valve.

Claim 18

The structure of claim 15, further comprising a second valve chamber housing said second valve means, said chamber having an inlet passage at one end and an outlet passage at the other end, and a ball valve seat at said inlet end.