Gas Ejection Valve
AssigneesUnisia Jecs Corporation, Dott Limited Company
InventorsTatsuo Tsutsui, Akira Yanagawa
Life of this patent
Estimating the term…
Abstract
A gas ejection valve includes a valve casing including first and second blocks that cooperate to define a holder groove and have a first mating face formed with an annular space, an inner peripheral seal ring disposed on the inner periphery of the valve casing to be in close contact with the outer periphery of a valve pin and being received in the holder groove, and an auxiliary seal ring received in the annular space for preventing communication between the inside of the gas container and the holder groove.
Claims20
A valve for a gas ejection apparatus with a container, comprising:
- a casing secured to an opening of the container, the casing comprising first and second blocks that cooperate to define a first groove and have a first mating face formed with a space;
- a pin movably held by the casing, the pin having a passage;
- a first seal ring disposed on an inner periphery of the casing, the first seal ring being in close contact with an outer periphery of the pin, the first seal ring being received in the first groove,
- wherein when the pin is pushed down, the passage ensures fluid communication between an outside of the container and a portion of the casing closer to an inside of the container than the first seal ring;
- and
- a second seal ring received in the space, the second seal ring preventing fluid communication between the inside of the container and the first groove.
An apparatus for ejecting gas, comprising:
- a container with an imaginary axis;
- and
- a valve hermetically mounted to the container, the valve comprising:
- a casing secured to an opening of the container, the casing comprising first and second blocks that cooperate to define a first groove and have a first mating face formed with a space;
- a pin movably held by the casing, the pin having a passage;
- a first seal ring disposed on an inner periphery of the casing, the first seal ring being in close contact with an outer periphery of the pin, the first seal ring being received in the first groove,
- wherein when the pin is pushed down, the passage ensures fluid communication between an outside of the container and a portion of the casing closer to an inside of the container than the first seal ring;
- and
- a second seal ring received in the space, the second seal ring preventing fluid communication between the inside of the container and the first groove.
A valve for a gas ejection apparatus with a container, comprising:
- a casing secured to an opening of the container, the casing comprising first, second and third blocks, the first and second blocks cooperating to define a first groove and having a first mating face, the first and third blocks having a second mating face, the second and third blocks having a third mating face, the first, second and third mating faces being formed with a space;
- a pin movably held by the casing, the pin having a passage;
- a first seal ring disposed on an inner periphery of the casing, the first seal ring being in close contact with an outer periphery of the pin, the first seal ring being received in the first groove,
- wherein when the pin is pushed down, the passage ensures fluid communication between an outside of the container and a portion of the casing closer to an inside of the container than the first seal ring;
- and
- a second seal ring received in the space, the second seal ring preventing fluid communication between the inside of the container and the first groove.
Dependencies are inferred from the claim text.