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| Number | Title | Issue Date |
| 7287756 | Film riding shaft seal The invention is a film-riding seal for a pump shaft that is resistant to the deposition of iron oxides such as hematite and goethite on the confronting, spaced apart, seal surfaces. The seal generally comprises a ceramic runner mounted on the pump shaft and an adja... | 10/30/2007 |
| 7258942 | Multilayer compressive seal for sealing in high temperature devices A mica based compressive seal has been developed exhibiting superior thermal cycle stability when compared to other compressive seals known in the art. The seal is composed of compliant glass or metal interlayers and a sealing (gasket) member layer composed of mica ... | 08/21/2007 |
| 6494465 | Seals for hydraulic assemblies A seal for hydraulic assemblies operating at high temperatures having adaptations (19, 20, 49, 50) for low pressures sealing and configured to move across the gap to be sealed at higher pressures with an angled base on a slope (23, 44) or a cup shape (73,... | 12/17/2002 |
| 6494675 | Flow machine for a fluid with a radial sealing gap between stator parts and a rotor Self-supporting wear rings (1a, 1b) for fluid flow machines are arranged at a radial sealing gap (18) to a rotor (9), and have an outer jacket surface (3) provided with a wear surface (2). The wear rings (1a, 1b), which are fixed in the axial direction, c... | 12/17/2002 |
| 6402156 | Glass-ceramic seals for ceramic membrane chemical reactor application Glass-ceramic sealants for ceramic membrane reactors, ceramic membrane sealed to holders or substrates and methods of making seals between two ceramic materials or between a ceramic and a metal or metal alloy are provided. These sealants combine silicate ... | 06/11/2002 |
| 6325385 | Piston ring A piston ring has a diamond-like carbon film formed in a thickness of 0.5 to 30 micrometers over an under film on the upper and lower surfaces. The under film is directly formed on the surfaces, or formed on a hard surface treatment layer consisting of a ... | 12/04/2001 |
| 6273432 | Sealing element for sensors A seal for a sensor element of a gas sensor for determining the oxygen content in exhaust gases of internal combustion engines. The seal includes at least one sealing element that is inserted into a longitudinal bore of a housing and that includes a mixtu... | 08/14/2001 |
| 6250643 | Damper plate and method for producing thereof There are disclosed a damper plate for a rotary machine and a method for producing thereof which makes it possible to produce a honeycomb-type damper plate with accurate dimensions and reasonable cost. In the method for producing a damper plate for sealin... | 06/26/2001 |
| 6214523 | Pattern formation by removal of paste material A method for serializing ceramic substrates in which a laser is used to remove unfired paste material from an unfired ceramic substrate. The paste material is removed by exposing the unwanted paste material to laser radiation in a programmed sequence of x... | 04/10/2001 |
| 6206377 | Seal arrangement for a sensing element of a gas sensor A seal arrangement for a sensing element of a gas sensor, in particular for determining the oxygen content in exhaust gases of internal combustion engines, includes a packet made up of several seal elements, packed one on top of another, which immobilize ... | 03/27/2001 |
| 6200086 | Thermal barrier for use in a mechanical seal assembly A mechanical seal assembly is adapted for use with a shaft supported by a bearing, the mechanical seal assembly being located near the bearing. The mechanical seal assembly includes a rotating member attached to the shaft and stationary member engaging th... | 03/13/2001 |
| 6105969 | Track joint sealing assembly for sealing a track joint in a track chain A track seal assembly (174) adapted to seal a track joint (172) includes a track link and a ceramic seal member (186). The track seal further includes an elastomeric member (176) positioned between the track link and the ceramic seal member (186). The tra... | 08/22/2000 |
| 6083371 | Sealing device for gas sensor A gas sensor including a sealing arrangement for sensing exhaust gases of internal combustion engines includes a housing for the sealing arrangement having a longitudinal bore; a planar sensor element secured in the longitudinal bore of the housing; a spr... | 07/04/2000 |
| 6070911 | Clamp-type pipe joint A clamp-type isolating pipe joint is disclosed, which can connect pipes by providing insulation between them, is easy to assemble and disassemble, has high reliability and allows easy replacement of parts and is inexpensive to manufacture and install. The... | 06/06/2000 |
| 6062569 | Fiber reinforced ceramic matrix composite piston ring A heat-resistant, thermally stable, ductile piston ring for an internal combustion engine having a structure comprised at least partially of fiber reinforced ceramic matrix composite (FRCMC) material. The FRCMC material includes a polymer-derived ceramic ... | 05/16/2000 |
| 6045885 | High pressure, high temperature gasket A gasket for high pressure, high temperature apparatus is disclosed which is of a generally frusto-conical shape. The smaller diameter portion of the gasket is made primarily from low friction material and the larger diameter portion of the gasket is made... | 04/04/2000 |
| 6020072 | Tribo-system A tribo-system comprises a first structural component part and a second structural component part which are in dry frictional contact with one another, each through a surface layer. For this purpose, the surface layer of the first structural component par... | 02/01/2000 |
| 5976695 | Thermally sprayable powder materials having an alloyed metal phase and a solid lubricant ceramic phase and abradable seal assemblies manufactured therefrom Thermally sprayable powders for the formation of abradable seals and abradable seals formed by thermally spraying the powders include an alloyed metal phase material and a solid lubricant ceramic phase material. The alloyed metal phase material includes a... | 11/02/1999 |
| 5942092 | Sensor A sensor device, particularly for determining the oxygen content in exhaust gases of internal combustion engines, having a sensor element that is surrounded gas-tight by a seal and fixed in a housing. The seal (19) is inserted as a pre-sintered, deformabl... | 08/24/1999 |
| 5852854 | Plug for closing any opening and method of manufacturing this plug The invention relates to an obturating stopper plug as well as to a method of manufacture of this stopper plug. The stopper plug for obturating any opening (2) and comprising a bead of heat-fusible adhesive (7) deposited upon the said stopper plug is char... | 12/29/1998 |
| 5795454 | Seal for a sensor element of a gas sensor A seal for a sensor element of a gas sensor for determining the oxygen content in gases including exhaust gases of an internal combustion engine, which seal seals the sensor element in a longitudinal bore of a housing, the seal including a sealing stack w... | 08/18/1998 |
| 5547203 | Segmented ceramic inlay piston ring A piston ring comprises a generally annular ring body with a series of slots spaced circumferentially about an outer periphery of the ring body, each of the slots extending radially inwardly from the outer periphery. A hinge point is formed between adjace... | 08/20/1996 |
| 5316072 | Sealing members for use in gas preheater A sealing member for use in a gas preheater is adapted to seal a gap between an outer peripheral portion of a rotor and a housing in the gas preheater or a gap between a side face of the rotor and a radial sealing member. At least a part of said sealing m... | 05/31/1994 |
| 5304031 | Outer air seal for a gas turbine engine An uncooled turbine outer air is comprised of a combination of monolithic ceramics with high temperature capability and oxidation and creep resistance, and a fiber reinforced ceramic composite with high fracture toughness. In a preferred embodiment of the... | 04/19/1994 |
| 5172921 | Sealing device A sealing device for sealing between two cylindrical members including a sealing ring and at least one other element arranged in a sealing groove in one of the members. The sealing ring is pre-stressed in its circumference and urged against the other memb... | 12/22/1992 |
| 5145011 | Sealing members for use in gas preheater A sealing member for use in a gas preheater is adapted to seal a gap between an outer peripheral portion of a rotor and a housing in the gas preheater or a gap between a side face of the rotor and a radial sealing member. At least a part of said sealing m... | 09/08/1992 |
| 5064204 | Analyzer sealing member A sealing member used in a portable or on-line analyzer, to achieve a tight seal between a sample and the analyzer in order to perform the analysis in a desired gas atmosphere. The sealing member is a semi-labyrinth sealing member manufactured of metal, e... | 11/12/1991 |
| 5053093 | Process for producing sliding bodies containing hollow chambers In a process for producing ceramic sliding bodies containing hollow chambers from a green solid parent body and a green film body containing hollow chambers, the green film body and the green solid parent body are laminated together, the organic constitue... | 10/01/1991 |
| 4983468 | Metallic slide members to be used with ceramic slide members and sliding assemblies using the same A metallic slide member is disclosed which is advantageously used in combination with an opponent ceramic slide member. The metallic slide member is capable of forming a metal coat lubricating layer on a sliding surface of the ceramic slid member through ... | 01/08/1991 |
| 4946737 | Gasket composition having expanded microspheres A gasket is described which contains microspheres which expand inside the gasket sheet material after the gasket sheet is formed. Such gaskets are especially useful to provide a seal against fluid leaks at significantly lower pressures due to the presence... | 08/07/1990 |
| 4946655 | Seal system for a process vessel A seal system for a circular perforated grid floor in a walled process vessel is disclosed, wherein air is passed upwardly through the perforations in the grid floor into catalyst bed, and by-passing of air through a gap between the grid floor and the wal... | 08/07/1990 |
| 4936269 | Method and apparatus for reduced oil consumption and oil deterioration in reciprocating engines A method and apparatus for reducing oil consumption and oil deterioration in a reciprocating engine. The engine is provided with ceramic rings and ceramic cylinder linings. Minimal oil lubricant is adsorbed on the surface layer of the rings and liners to ... | 06/26/1990 |
| 4884820 | Wear resistant, abrasive laser-engraved ceramic or metallic carbide surfaces for rotary labyrinth seal members A rotary gas seal in which a first member, e.g., a tip, cooperates with a second member to inhibit gas flow therebetween, the improvement wherein, the tip is provided with a ceramic or metallic coating bonded thereto, the surface of the coating having a p... | 12/05/1989 |
| 4809990 | Brush seals of ceramic material for thermal turbomachines A brush seal for use in thermal turbomachines comprising bristles which consist of oxidic or non-oxidic ceramic fiber.... | 03/07/1989 |
| 4645217 | Finger seal assembly A finger seal assembly for use between a stationary member and a movable member is formed of two overlapping metallic members having a solid portion at one end and having fingers at the other end, a layer of high temperature resistant cloth being position... | 02/24/1987 |
| 4600202 | Flexible brush-type seal with layered moving sealing surface A brush-type seal between machine components in relative motion one with respect to the other, of which at least one member rotates, in which the strands or bristles consist of composite fibers designed for good thermal conductivity in at least portions o... | 07/15/1986 |
| 4594053 | Housing for a fluid flow or jet engine A coolable housing wall for hot gas fluid flow engines, especially for a gas turbine of the air jet type, is provided on its radially inwardly facing surface with a carrier for a single cover layer forming a running-in coating. The cover layer is applied ... | 06/10/1986 |
| 4522415 | Piston ring for an internal combustion engine A piston ring (1) made of ceramic materials for an internal combustion engine comprising a body made by sintering of partially stabilized zirconium oxide (PSZ) which has a porosity | 06/11/1985 |
| 4521496 | Stress relieved metal/ceramic abradable seals Metal/ceramic abradable seals of the type used in jet aircraft are improved by using a substrate which is able to deform during cooling from the brazing temperature and then rendering the substrate rigid after the cool down.... | 06/04/1985 |
| 4463959 | Composite gasket including rings of refractory sheet material and knitted wire mesh A composite gasket includes two spaced rings of refractory sheet material and a ring of knitted wire mesh. The knitted wire mesh extends into the space between the refractory rings and radially outward from the outside diameter of the refractory rings.... | 08/07/1984 |
