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| Number | Title | Issue Date |
| 8096561 | Flange gasket Ring-shaped flange gasket produced from a rubbery-elastic material, said flange gasket comprising two rings (2, 3), each having a ring-shaped reinforcing insert (9, 10), said rings being formed in a wedge-shaped manner transversely relative to the ring... | 01/17/2012 |
| 7217452 | Elastomer-bonded sheet material and process for its production The invention relates to an elastomer-bonded sheet material encompassing vulcanized elastomer content and content composed of at least one filler bonded therein, where the vulcanized elastomer content encompasses, based on the entire elastomer content, from about 25... | 05/15/2007 |
| 5997008 | Sealing ring A sealing ring, for use in establishing a fluid-tight connection between the facing ends of tubular members which are to be braced axially with respect to one another, comprises a thin sheet-metal ring provided with a corrugation which defines an effectiv... | 12/07/1999 |
| 5795518 | Process for producing sealing rings from expandable graphite Expanded graphite sealing rings having particles of PTFE captured at least in a surface layer are disclosed. The sealing rings are produced by impregnating porous rings, cut from a sheet of low density expanded graphite, with a PTFE dispersion and then co... | 08/18/1998 |
| 5671929 | Lenticular sealing ring with alternating graphite and metal lamellae A lenticular sealing ring comprises alternately arranged lamellae (1) made of expanded graphite and metal lamellae (2). The density of the graphite lamellae (1) increases from the inside toward the outside of the sealing ring. The layering is configured s... | 09/30/1997 |
| 5544898 | Sealing ring for a shut-off valve having a multi-ply structure A shut-off valve includes a housing defining a flow channel and a bore for receiving a rotary actuator, a valve member, and first and second seal rings. The first seal ring cooperates with the valve member to close and seal the flow channel. The second se... | 08/13/1996 |
| 5452904 | Stuffing-box packing A stuffing-box packing for establishing a seal between a housing bore and a rotatable shaft which has at least one packing ring comprising expanded graphite and a pair of disc-shaped stripper elements which are comprised of a suitable plastic or metal. To... | 09/26/1995 |
| 5381818 | Shut-off valve and sealing ring A shut-off valve includes a housing defining a flow channel and a bore for receiving a rotary actuator, a valve member, and first and second seal rings. The first seal ring cooperates with the valve member to close and seal the flow channel. The second se... | 01/17/1995 |
| 5149055 | Shut-off valve A piston type of shut-off valve with a sealing ring made of expanded graphite. A plurality of ring-shaped lamellae are each stamped from a foil of expanded graphite and then joined to form a sealing ring. A peripheral edge surface of the sealing ring, rat... | 09/22/1992 |
| 4690413 | Gaskets A kit of gaskets comprises at least one piece (10) of gasket forming material, preferably of the "dry joint" grade, which piece includes gasket parts (1) and packaging parts (2). Cuts (4) separate the gasket parts (1) from the packaging parts (2). The cut... | 09/01/1987 |
| 4546790 | Fluid valve The fluid valve comprises an integral housing made of forged steel, the housing having tubular end portions as fluid inlet and outlet, respectively, conical transition zones having a cone angle of at least 30°, and a central enlargement joined by said tr... | 10/15/1985 |
| 4512190 | Magnetically operated liquid level indicator A liquid level indicator includes a magnetized float and a plurality of magnetized indicator elements which are pivoted by the float magnet and which have distinguishable opposite surfaces to provide the liquid level indication, the indicator elements bei... | 04/23/1985 |
| 4395050 | Sealing arrangement specifically for shut off devices A sealing arrangement specifically for shut off devices is disclosed. A shut off device has two annular metallic sealing members of which one is a rigid body and the other is a thin-walled elastically deformable body. One of the sealing members features a... | 07/26/1983 |
| 4284098 | Valves for controlling or preventing fluid flow A valve for controlling or preventing fluid flow has a shut-off element controllably movable in an axial direction between a first position corresponding to a fully open condition of the valve and a second position corresponding to a fully closed conditio... | 08/18/1981 |
| 4221234 | Closure valves for use in coaxial flow systems A double-acting closure valve for use in a coaxial flow system consists of an inner pipe having an inner wall surface including surface portions which are profiled so as to provide a pair of inner valve seats spaced apart axially from one another, an inne... | 09/09/1980 |
| 4194390 | Method of and apparatus for ascertaining the state of aggregation of a medium A method of ascertaining the state of aggregation of a medium, whereby the flow of the medium is directed to a first of a series of two or more coaxially arranged nozzle means, further the initial pressure of said medium ahead of said series of nozzle mea... | 03/25/1980 |
| 4112965 | Shutoff element A shutoff element comprising a substantially tubular-shaped outer housing and an axially symmetrical inner housing connected by means of rib-like carriers or supports with the outer housing. The axially symmetrical inner housing serves for receiving at le... | 09/12/1978 |
| 4105187 | Sealing system for shutoff units A sealing system for a shutoff unit comprising two substantially ring-shaped sealing elements, one of which is tightly connected with the housing or with the blocking element of the shutoff unit and the other is either tightly connected with the blocking ... | 08/08/1978 |
| 3945390 | Sealing system for shutoff elements A sealing system for a shutoff element having two substantially ring-shaped sealing elements forming at least two substantially ring-shaped sealing lines. A given one of the sealing elements is constructed as a thin-wall body which is elastically deformab... | 03/23/1976 |
