Non-interchangeable connecting valves for fuel cartridges
View Patent ↗A non-interchangeable two-component connecting valve capable of connecting a fuel supply to a fuel cell or other device is disclosed. One component of the connecting valve comprises at least one center post and one internal elastomeric seal, which opens when moved or compressed by a correctly sized and dimensioned mating tube from the other component. In one embodiment, only one valve component has one or more internal seals. In alternate embodiments, both valve components have one or more internal seals, which can open simultaneously or sequentially.
1. A valve comprising,
a valve body, a sealing member and a center post affixed to the valve body such that the center post is substantially immovable relative to the valve body,
wherein the sealing member is positioned away from a mating surface of the valve and a gap on the mating surface is provided, wherein the gap is defined between the center post and the valve body, wherein the gap is present when the valve is in a closed position,
wherein the gap is sized and dimensioned to receive a hollow tube, and
wherein when the hollow tube is pushed into the gap it moves the sealing member away from a sealing position to establish a flow path through the valve.
2. The valve of claim 1 , wherein the center post is integral to the valve body.
3. The valve of claim 1 , wherein the flow path comprises a path between the tube and the center post and between the center post and the valve body.
4. The valve of claim 1 , wherein the sealing member is selected from the group consisting of O-rings, elastomeric seals, sealing faces, washers, overmolded elastomeric portions, flat O-rings, non-flat O-rings, lip washers and elastomeric balls.
5. The valve of claim 1 , further comprising a second center post affixed to the valve body and a second sealing member positioned away from the mating surface,
wherein a second space is provided around the second center post and
wherein a second tube sized and dimensioned to enter the second space is provided to open a second flow path through the valve.
6. The valve of claim 5 , wherein the second center post is located concentrically around the center post and the second space is positioned concentrically around the space.
7. The valve of claim 1 , wherein the valve further comprises a second sealing member between the valve body and the center post, and wherein the hollow tube moves the second sealing member to establish the flow path.
8. The valve of claim 1 , wherein the hollow tube is connected to a corresponding valve and wherein the corresponding valve further comprises a valve body, a sealing member and a center post affixed to the valve body such that the center post is substantially immovable relative to the valve body of the corresponding valve.
9. The valve of claim 8 , wherein the hollow tube is integral with the valve body of the corresponding valve.
10. The valve of claim 8 , wherein the hollow tube is movable relative to the valve body of the corresponding valve component to compress the sealing member of the corresponding valve to open a flow path through the corresponding valve.
11. The valve of claim 10 , wherein the hollow tube comprises an outer protuberance adapted to engage a retainer.
12. The valve of claim 8 , wherein the corresponding valve further comprises a second hollow tube, wherein the second hollow tube is movable relative to the valve body of the corresponding valve to compress the sealing member of the corresponding valve.
13. The valve of claim 12 , wherein the second hollow tube is located concentrically around the hollow tube.
14. The valve of claim 13 , wherein the hollow tube is fixedly attached to the valve body of the corresponding valve.
15. The valve of claim 12 , wherein a support connects the hollow tube to the second hollow tube.
16. The valve of claim 15 , wherein the support comprises a web or spoke.
17. The valve of claim 12 , wherein at least one aperture is disposed on the side wall of the second hollow tube to provide a flow path therethrough.
18. The valve of claim 12 , a pair of diametrically opposite apertures is disposed on the side wall of the second hollow tube to provide a flow path therethrough.
19. The valve of claim 12 , wherein an inter-component seal is established between the in the valve and the corresponding valve.
20. The valve of claim 1 , wherein the hollow tube is connected to a corresponding valve comprising an internal seal.