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| Number | Title | Issue Date |
| 7281544 | Devices and methods for controlling the release of a substance Valves for controlling the release of a substance, include a housing having an inlet for connection to a source of the substance, an outlet, and a passage extending therebetween. The passage is enclosed by a ceramic disc and means are provided to apply an electrical... | 10/16/2007 |
| 6948515 | Carbon rupture disk assembly A rupture disk assembly for use in a pressurized fluid passageway within an application environment having a temperature operational range. The disk assembly includes a cylindrical one-piece disk consisting of unimpregnated graphite, a single bore extending partway ... | 09/27/2005 |
| 6378544 | Pressure relief device and method of using the same The present invention relates to a pressure relief device and method of using the same. The pressure relief device includes a rupture element containing an inner layer made of an nonferrous-based composition that can preferably withstand contact with corr... | 04/30/2002 |
| 6311715 | Stacked rupture disk assembly A stacked rupture disk assembly of the present invention is adapted to be positioned between flanges in a vent pipe or pressure relief port of a pressure vessel. The stacked rupture disk assembly includes a first rupture disk assembly and a second rupture... | 11/06/2001 |
| 6298869 | Reverse buckling, thermoformed, polymer rupture disk A thermoformed reverse buckling polymer rupture disk having an unsupported raised center portion including score lines cut in the polymer disk that creates a line of weakness to control the buckling pressure of the disk and forms a predetermined burst pat... | 10/09/2001 |
| 6230733 | Self-contained rupture disk cartridge A polymer rupture disk in the form of a cartridge or capsule that can be inserted in a fluid line fixture as a replaceable unit to establish a predetermined rupture pressure or safety pressure for that particular pressurized container.... | 05/15/2001 |
| 6131599 | Rupture disk controlled mechanically actuated pressure relief valve assembly Improved burst disk-type pressure responsive valve assemblies (20, 184) of the pressure relief and shutdown variety are provided which utilize frangible burst disks (30, 204) which largely determine the set point pressures for the valves. The assemblies (... | 10/17/2000 |
| 5979477 | High purity, non-contaminating, burst disk A burst disk assembly relies on a brittle material as the burst disk. Conventional manufacturing tolerances are suitable with the mounting assembly. Flatness and collinearly are achieved by an alignment adapter interfacing between an anvil and the burst d... | 11/09/1999 |
| 5865207 | Releasing means A releasing device for rocket fuel lines, arranged between a tank outlet and a shutoff valve, which releases the flow path at a defined, tank-side overpressure, with a piston-like bursting element. A disk is provided with a predetermined breaking point an... | 02/02/1999 |
| 5333844 | Non-graphite crucible for high temperature applications A multi-piece crucible for high temperature applications comprises a tubular side wall member having a lip on the inside surface and a bottom member or members forming a container for containing a melt of a material during a high temperature melt-casting ... | 08/02/1994 |
| 5279321 | Rupture disc A rupture disc of a thermoplastic material in which metal wires or carbon fibers are imbedded. According to a particular embodiment of the invention, at least one of the wires is designed as an electrical conductor through which current flows.... | 01/18/1994 |
| 5267666 | Multiple-dome, scored, rupture disc A multiple-dome, scored rupture disc presents opposing first and second disc faces, and is provided with a circular, central region and a flat annular flange surrounding the central region. An arcuate line of weakness is formed in the disc circumscribing ... | 12/07/1993 |
| 5250041 | Tubing administration set for use in peritoneal dialysis Apparatus for administering dialysis, including a separable tubing coupling (32). The tubing coupling (32) consists of a hollow cylindrical element (42, 44) insertable into the lumens of the distal and proximal regions of the fluid delivery tube (16), and... | 10/05/1993 |
| 5222862 | Turbine generator pressure relief diaphragm A pressure relief diaphragm is associated with a turbine housing and is operable to relieve excessive pressure within the turbine housing to prevent damage to turbine blades. The pressure relief diaphragm includes a safety housing having a mounting flange... | 06/29/1993 |
| 5197622 | Vent pressure relief device A device for venting dangerous pressures within a cylindrical battery. Pressure relief is provided by special score lines in a container to give way under a pressure increase prior to the pressure rising to the level that might cause an explosive conditio... | 03/30/1993 |
| 5154202 | Low forward pressure burst-high backpressure resistant rupture disc A fluid pressure relief assembly for a system operating under an elevated pressure includes a support structure having means defining a bore therethrough of desired cross-sectional configuration, the support structure being provided with a shoulder extend... | 10/13/1992 |
| 5154396 | Reinforced plastic valve A polyethylene plastic valve has a molded cylindrical body portion with an internal chamber with inlet and outlet openings. A unitary plastic plug member is rotatably positioned in the chamber. The plug member has an actuator portion formed of impact resi... | 10/13/1992 |
| 5155471 | Low pressure burst disk sensor with weakened conductive strips An ultra low pressure flow sensor consisting of a support gasket defining a flow way and having a thin, pliable membrane extending thereacross with right angle slits formed totally across the flow way portion. An electrical conductor strip is then bonded ... | 10/13/1992 |
| 5144973 | Safety valve for compressed gas cylinders A safety valve for fitting into a compressed gas cylinder to terminate gas flow from the cylinder when a primary gas valve attached to the cylinder port of the cylinder is deflected or severed. The safety valve is independently supported in the cylinder p... | 09/08/1992 |
| 5082133 | Low pressure rupture disk and assembly An improved low pressure reverse buckling rupture disk and assembly are provided. The rupture disk comprises a concave-convex reversible member having a thickness and a configuration such that said member reverses when a predetermined fluid pressure is ex... | 01/21/1992 |
| 5022424 | Tension loaded composite rupture disk A composite rupture disk includes a slit-slot, tension loaded disk having a plurality of circumferentially spaced radial slits (e.g. six in number) that terminate before reaching the disk center, thereby defining an uncut disk central portion which can be... | 06/11/1991 |
| 5012945 | Rupture disk assembly This invention is concerned with an improved safety rupture disk assembly. This rupture disk assembly, which is designed for a fluid containment vessel, comprises two main parts: a removable rupture disk, and a cover plate. The rupture disk, of course, is... | 05/07/1991 |
| 5002085 | Low pressure non-fragmenting rupture disks Low pressure, non-fragmenting rupture disks and assemblies including such disks are provided. The rupture disks are each basically comprises of a non-metallic rupture member having one or more lines of weakness formed by indentations therein which define ... | 03/26/1991 |
| 4978947 | Rupturable fluid flow indicator A rupturable fluid flow indicator and a rupture disk assembly including the indicator are provided. The indicator is comprised of a rupturable member adapted to be clamped across a fluid flow passageway having at least one opening formed therein for weake... | 12/18/1990 |
| 4907617 | Safety valve for a compression gas cylinder A safety valve device for a compression gas cylinder to shut off gas flow at the tank port of the cylinder when downstream gas flow control apparatus is structurally distrupted is set forth which includes a housing having a conduit therethrough for the pa... | 03/13/1990 |
| 4896688 | Breakaway hose coupling device A breakaway hose coupling device (10') for releasably joining the hose ends of two fluid communicating hoses and for selectively disengaging and sealing such hose ends in response to a disengaging force of a preselected value is disclosed. The coupling de... | 01/30/1990 |
| 4852602 | Riser check valve There is disclosed a check valve apparatus for use with risers in an irrigation system. The valve apparatus stops the flow of water when the respective riser is broken away from the water supply conduit. The valve apparatus has a conduit member and a valv... | 08/01/1989 |
| 4842004 | Quick-release assembly for rupture disc insert type holder and the like A quick release assembly including a pair of flanges for receiving a rupture disc insert type holder and the like therebetween in a leak-tight seal, at least one of the flanges being secured to a pressure relief conduit of a pressure system. A minimum num... | 06/27/1989 |
| 4762140 | Snap-off plug valve Disclosed is a plug valve for installation in a water supply line which will shut off flow through the line when a downstream emitting element, such as a sprinkler head, is destructively removed from the line. A fracture groove on the exterior of the valv... | 08/09/1988 |
| 4750510 | Temperature responsive pressure relief apparatus and method A fluid pressure relief apparatus of the rupturable type which ruptures at different pressures depending upon the temperature of the fluid in contact therewith. A rupture member is provided supported by a support member which is maintained in place by a m... | 06/14/1988 |
| 4744382 | Combination thermal or pressure activated relief valve A combination thermal or pressure activated relief valve is disclosed. The valve includes a housing having an inlet and an outlet formed therein. The inlet is adapted to be attached to a pressure source while the outlet is in communication with an area ha... | 05/17/1988 |
| 4682619 | Reverse-buckling rupture disk A reverse-buckling rupture disk assembly provides a cylindrical housing having a bore for conveying flow through the housing. Mounted within the housing is a frangible concave-convex disk which is connected along its peripheral edge to the housing so as t... | 07/28/1987 |
| 4612739 | Low pressure venting panel A low pressure venting panel acts to safely vent a pressure vessel, such as a bag house, from overpressure conditions. The venting panel is particularly responsive and predictable at low pressures. The panel includes a thin rupture body with a central gro... | 09/23/1986 |
| 4609005 | Tubing isolation disc valve In the representative embodiment of the invention disclosed herein, a disc valve is cooperatively arranged to include a disc member of a ductile material which is transversely positioned within an enlarged chamber in the axial bore of a tubular housing an... | 09/02/1986 |
| 4607664 | Plumbing test plug apparatus A plug to be temporarily located in a blocking manner within a pipe of a sewage pipe system of a building. The plug is to be installed within the pipe system as it is constructed. The plug is mounted within a flexible, enclosing wall, sleeve. The plug is ... | 08/26/1986 |
| 4590957 | Pressure relief device A bursting disc assembly comprises a generally tubular body provided with an external screw thread and, at one end of the body, a counterbore which forms an annular seat within the body to accommodate at least the peripheral regions of a preferably flat b... | 05/27/1986 |
| 4588101 | Safety vent for containers A safety vent for an internally pressurized fluid container is disclosed. The safety vent is provided in a wall of the container which is subject to outward deformation when the internal pressure of the container exceeds a predetermined level. The wall ha... | 05/13/1986 |
| 4580690 | Coinless pressure relief device A pressure relief device for an internally pressurized container. The device is imperforate, forms an integral part of the container surface, and has a concave annular outer area integrally joined to an inwardly protruding circular central area by an annu... | 04/08/1986 |
| 4580691 | High flow pressure relief assembly A safety pressure relief assembly of the rupture disc type guards against pressure differentials, beyond a predetermined range in a vent system, and includes a relief disc perforated to permit reverse flow without rupture, a sealing disc positioned adjace... | 04/08/1986 |
| 4512491 | Dual range rupture disc assembly A two directional rupture disc assembly is provided which serves in a fluid reactor system as a safety relief valve when a critical condition, such as predetermined pressure positive or negative, is encountered. That is, the rupture disc assembly hereof i... | 04/23/1985 |
