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| Number | Title | Issue Date |
| 7464940 | High temperature spring seals A composite seal for sealing in high temperature applications includes an inner spring for controlling the sealing load or the spring rate, and an outer jacket for providing a sealing surface. In one embodiment, the inner spring, which be made from cast blade alloys... | 12/16/2008 |
| 7334800 | Seal for a gas turbine engine having improved flexibility A seal extending between adjacent slots of a gas turbine engine is disclosed. The seal comprises a plurality of generally planar members fixed together along a central axis. The outer member further comprises rounded ends that encompass the second and plurality of t... | 02/26/2008 |
| 7252293 | Two-part gasket for pipe-to-pipe connections A gasket for pipe-to-pipe connections, which is closely received within a rectangular-shaped annular groove in the bell end of a pipe, and provides a compressive, fluid-tight seal with the spigot end of another pipe. The gasket includes a two-part body having a subs... | 08/07/2007 |
| 7246800 | Sealing mechanism for sealing a vacuum chamber A sealing mechanism comprises a support member forming part of the semiconductor producing apparatus which has a vacuum chamber, a rotation shaft rotatably received in the support member, and at least three seal rings axially spaced apart from each other between the... | 07/24/2007 |
| 7217090 | Seals A seal for a rotating machine is designed to be operable when set and cured in situ and one seal arrangement includes a washer having a beveled face and a nut having a beveled face axially spaced therefrom and mounted in a housing, the one seal arrangement is mounte... | 05/15/2007 |
| 7159857 | Multi spring ring A mechanical spring energized sealing device comprising in combination an elastomeric jacket and variety of resilient metallic springs inserted inside one uniform jacket casing, there are variety of energizer springs which are used for different needs in marketplace... | 01/09/2007 |
| 7152864 | Seal assembly It is disclosed a seal assembly (5) which comprises a layered structure. It consists of a first layer (9, 12) of a base material, a second layer (10) of thermal insulating material on top of the base material and a third layer (11, 12) of... | 12/26/2006 |
| 7131648 | Seal construction including a compressible spring mechanism for bearing preload A seal assembly adapted for use in creating a seal between an axially extending shaft and a support member. The seal assembly defines an axial passage through which the shaft extends, wherein a bearing assembly is mounted to the support member and includes a station... | 11/07/2006 |
| 7128323 | Seal device Primary objective of the present invention is to provide a seal device wherein the seal surfaces of the device are always brought into close contact against the side walls of the mounting slot regardless of fluid conditions. The seal device has two seal portions loc... | 10/31/2006 |
| 7111821 | Control valve, in particular plug valve with sealing system The present invention relates to a plug valve comprising a valve body and a shutter that can be actuated, in the form of a segment of a sphere provided with a mobile shaft in rotation and/or translation, said valve also comprising a double-barrier sealing system at ... | 09/26/2006 |
| 7111833 | Dual disc spring A dual spring includes a pair of conically-shaped spring sections, which are joined at a common fulcrum. One of the spring sections is disposed radially inward from the fulcrum and the other of the spring sections is disposed radially outward from the fulcrum. Both ... | 09/26/2006 |
| 7093837 | Turbine spring clip seal An improved turbine spring clip seal for directing gases to be mixed with fuel in a combustor basket. The turbine spring clip seal is composed of inner and outer housings and a center sealing member disposed between the inner and outer housings. The center sealing m... | 08/22/2006 |
| 7093820 | Over center high deflection pressure energizing low leakage seal A low leakage seal for separating two environments and contacting a component surface is provided. The seal includes a base and an annular rib. The annular rib is coupled to and extends from the base. The annular rib includes at least one contact surface configured ... | 08/22/2006 |
| 7090222 | Shaft sealing assembly for vacuum processing apparatus Herein disclosed is a shaft sealing apparatus which comprises a vacuum casing formed with a vacuum chamber, a driving shaft having an outer cylindrical surface and movably extending in the vacuum chamber of the vacuum casing, and a sealing ring in the form of an ann... | 08/15/2006 |
| 7090224 | Seal device Primary objective of the present invention is to effect a seal against assembly clearances formed between components which admit flows of high temperature fluids or are subjected to vibrations. The seal device is comprised of a supporting member which has a first se... | 08/15/2006 |
| 7040628 | Large diameter polytetrafluoroethylene or like seals A large-diameter PTFE seal. The lip of the seal is made from a long strip of PTFE bound together at the ends with the aid of a patching tape to form a closed loop. The loop is then flanged and placed between an inner and an outer case, together with a rubber-like ga... | 05/09/2006 |
| 7004452 | Valve seal assemblies and methods A method of sealing a valve engaging member to a valve body about a borehole and structure thereof. Two seal members disposed on either side of the valve engaging member include a seat member adjacent the valve engaging member and a pocket insert adjacent the seat m... | 02/28/2006 |
| 6834863 | Ball joint seal A ball joint includes a socket and a stud having a ball end portion received in the socket and a shank projecting from the socket. An annular seal has an intermediate portion extending between first and second end portions. The second end portion of the seal has an ... | 12/28/2004 |
| 6663109 | Rotating fluid seal A rotating seal assembly, comprising: a first member having a circular hole passing therethrough; a second member having a circular shape, the second member being positioned such that an annular gap is present between the first and second members; a conta... | 12/16/2003 |
| 6527274 | Turbine rotor-stator leaf seal and related method A seal assembly for installation between rotating and stationary components of a machine includes a first plurality of leaf spring segments secured to the stationary component in a circumferential array surrounding the rotating component, the leaf spring ... | 03/04/2003 |
| 6419236 | Springclip ring This invention describes a seal ring which is consisted of a spiral spring wire acting as an expander device where in turn is inserted inside a C and or U shaped jacket made of a softer material such as elastomer or teflon in such a manner that forces the... | 07/16/2002 |
| 6224322 | Seal assembly for centrifugal pumps with barrier ring In a centrifugal pump, a barrier ring in the form of a dynamic seal member is interposed between relatively rotating, generally circular wall portions which undergo relative axial movement to vary the width of a gap between the wall portions, the seal mem... | 05/01/2001 |
| 6091175 | Self-centering rotor bearing assembly for submersible pump motors The invention provides a submersible pumping system which includes a motor containing self-centering rotor bearing assemblies. Each rotor bearing assembly in accordance with the present invention includes a sleeve, a journal, and at least two seals. The j... | 07/18/2000 |
| 6065756 | Flex seal for gas turbine expansion joints An expansion joint seal between a gas turbine exhaust duct and an axially adjacent exhaust ductwork comprising plural layers of axially adjacent layers of flexible seal plates, each layer comprising a plurality of arcuate segments which together form a 36... | 05/23/2000 |
| 5421591 | Sealing arrangement The invention concerns a sealing arrangement for use in steered axles of vehicles employed in agriculture and/or the building trade. The sealing arrangement (24) consists of separate seals (46, 47) which are assembled into a sealing set (48) by way of a s... | 06/06/1995 |
| 5163692 | One-piece composite lip seal A composite one-piece dynamic lip seal forms a dynamic ring seal between static and dynamic surfaces in a variety of applications requiring fluid sealing. The lip seal body is generally U-shaped in cross section and is principally made from a soft elastom... | 11/17/1992 |
| 4961588 | Radial seal A heat resistent seal having a plurality of finger-like members (14) which press against the outer peripheral surface (23) of a rotating cylinder (16). The seal includes several seal sections (10), each comprising a thin spring steel plate (22) having a l... | 10/09/1990 |
| 4811961 | Seal for rotating cylinders such as kilns and the like A seal for use in sealing an annular opening between a stationary member and a rotating cylinder telescopically arranged with the stationary member, the seal comprising a series of partially overlapping members circumscribing the cylinder adjacent the sta... | 03/14/1989 |
| 4789166 | Rotary shaft wave seal A seal for use about a rotatable shaft comprises an annular cylindrical elastic sealing element having a radially inwardly extending flange defining a sealing lip at its radially innermost edge. An axially undulatory wave spring molded internally of the f... | 12/06/1988 |
| 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 |
| 4585239 | Channeled ring seals with spring rings A ring seal primarily for sealing static mating faces comprises an annular jacket (1), which may be made of low friction plastics material, having a channel of part-elliptical radial profile. Within the channel there is accommodated an energizing spring (... | 04/29/1986 |
| 4585238 | Channeled ring seals with spring rings A ring seal of the kind comprising an annular jacket (1) of relatively yieldable material with a channel containing an energizing spring to impart resilience thereto, is characterized in that the channel is of substantially part-elliptical profile and con... | 04/29/1986 |
| 4508356 | Modified C-shaped mechanical spring seal A mechanical spring seal comprising in combination an elastomeric jacket and a resilient spring insert having modified and matching C-shaped cross-sectional configurations. The major portion of the length of the spring follows a relatively straight path b... | 04/02/1985 |
| 4504068 | Shaft sealing ring In a shaft sealing ring including a stiffening ring having an angular profile, a lip ring with a sealing lip, an intermediate ring in the nature of a diaphragm connecting the lip ring to the stiffening ring and an elastic contact pressure element arranged... | 03/12/1985 |
| 4138032 | Full secondary seal, wiper type, for a floating roof tank In a vertical cylindrical liquid storage tank having a circular floating roof, an improved sealing means including an elastomeric composite strip impermeable to vapor connected at its inner edge by an essentially vapor tight joint to the roof edge and ext... | 02/06/1979 |
| 4133542 | Spring seal A seal comprising a spring having an enlarged diameter base mounted in the heel of a seal casing to enable flared arms extending forwardly from the base to freely exert by cantilever action an outwardly directed spring bias against the casing while the sp... | 01/09/1979 |
| 4042248 | High pressure shaft seals A shaft seal structure located in the annular space between a pump housing and a relatively rotatable shaft. The seal includes an outer cup member, a plurality of intermediate plastic washers, an inner spring disc member and an assembly retainer. The cup ... | 08/16/1977 |
| 4022948 | Resiliently coated metallic finger seals The resiliently coated metallic finger seal described herein is formed of two metallic seal members being fixed together at one end with fingers projecting rearwardly therefrom. The fingers on each member are offset so that the slits of each metallic seal... | 05/10/1977 |
