Pressure vessel
First Claim
1. A pressure vessel having an excess pressure release device which comprises an outlet from the pressure vessel, a sealing member closing said outlet, and a pressure release member to which force derived from the pressure in the vessel is transmitted via said sealing member and which is arranged to break when said pressure exceeds a predetermined level so that said pressure may be released through said outlet, wherein said sealing member comprises a flexible membrane arranged across said outlet and secured at its perimeter, and said pressure release member is a disc formed of brittle material and is captive in a space defined by said flexible membrane and an abutment and displaceable in said space.
4 Assignments
0 Petitions
Accused Products
Abstract
A pressure vessel has an excess pressure release device comprising a passage between the interior and the exterior of the pressure vessel, a bursting disc seated in the passage, and a flexible membrane mounted adjacent to the disc between the interior of the vessel and the disc so as to seal the passage and hold the disc captive without the disc being clamped. The excess pressure release device may be used in connection with any pressure vessel requiring an excess pressure release device of the bursting-disc type. The device is particularly suitable for use in the dispensing valve of a home carbonation apparatus.
109 Citations
7 Claims
- 1. A pressure vessel having an excess pressure release device which comprises an outlet from the pressure vessel, a sealing member closing said outlet, and a pressure release member to which force derived from the pressure in the vessel is transmitted via said sealing member and which is arranged to break when said pressure exceeds a predetermined level so that said pressure may be released through said outlet, wherein said sealing member comprises a flexible membrane arranged across said outlet and secured at its perimeter, and said pressure release member is a disc formed of brittle material and is captive in a space defined by said flexible membrane and an abutment and displaceable in said space.
- 5. A pressure vessel having an excess pressure release device which comprises an outlet from the pressure vessel, a sealing member closing said outlet, and a pressure release member to which force derived from the pressure in the vessel is transmitted via said sealing member and which is arranged to break when said pressure exceeds a predetermined level so that said pressure may be released through said outlet, wherein said vessel includes an outlet valve for discharging liquid from said vessel, said outlet, said sealing member and said pressure release member being provided in said outlet valve, and wherein the outlet valve comprises a hollow sleeve slidable in an aperture in a wall of the pressure vessel, the sleeve having a head arranged to seat on the inner face of the wall and at least one aperture to permit fluid flow from the vessel into the hollow sleeve when the head is spaced from the wall, the head having said outlet therethrough, and the sealing member comprising a resilient cap for the head.
Specification