GAS VALVE SHUTOFF SEAL
First Claim
Patent Images
1. A gas valve comprising:
- a valve body;
a valve member disposed within the valve body; and
an elastomeric sealing bead situated between the valve body and the valve member;
wherein, when the gas valve is closed, an axial force that is applied to the valve member translates into a radial force at the elastomeric sealing bead.
1 Assignment
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Accused Products
Abstract
A gas valve includes a valve body and a valve member disposed within the valve body. In one illustrative embodiment, the valve body includes a valve seat that has a lower seat portion and a side seat portion. In some cases, the valve member may include a shutoff disk and an elastomeric sealing bead disposed on the shutoff disk. The valve member may be axially movable between an open position, a just-closed position in which the elastomeric sealing bead contacts the lower seat portion, and an overtravel position in which the elastomeric sealing bead contacts and exerts a radial force on the side seat portion of the valve body.
81 Citations
20 Claims
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1. A gas valve comprising:
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a valve body; a valve member disposed within the valve body; and an elastomeric sealing bead situated between the valve body and the valve member; wherein, when the gas valve is closed, an axial force that is applied to the valve member translates into a radial force at the elastomeric sealing bead. - View Dependent Claims (2, 3, 4, 5)
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6. A gas valve comprising:
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a valve body defining a valve seat, the valve seat having a lower seat portion and a side seat portion; and a valve member disposed within the valve body, the valve member comprising a shutoff disk and an elastomeric sealing bead secured relative to the shutoff disk; wherein the valve member is axially movable between an open position, a just-closed position in which the elastomeric sealing bead contacts the lower seat portion, and an overtravel position in which the elastomeric sealing bead contacts and exerts a radial force on the side seat portion. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A dual gas valve comprising:
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a valve chamber comprising an upper valve seat and a lower valve seat; a valve member disposed within the valve body, the valve member movable between an open position in which gas flow is permitted through the dual gas valve and a closed position in which gas flow is not permitted through the dual gas valve, the valve member comprising an upper shutoff disk and a lower shutoff disk; an upper elastomeric sealing bead secured relative to the upper shutoff disk and a lower elastomeric sealing bead secured relative to the lower shutoff disk wherein moving the valve member from the open position to the closed position forces the upper elastomeric sealing bead to expand radially against the upper valve seat and forces the lower elastomeric sealing bead to expand radially against the lower valve seat. - View Dependent Claims (19, 20)
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Specification