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| Number | Title | Issue Date |
| 7338049 | Self-cooling ferrfluid seal A self-cooling ferrofluid seal includes a housing having a housing case and an external pole piece integrally connected to the housing case where the housing case has a plurality of heat dissipating surfaces, a magnetic circuit within the housing formed in conjuncti... | 03/04/2008 |
| 7217081 | Cooling system for a seal for turbine vane shrouds A seal for sealing a seal groove in a shroud of a turbine vane. The seal may include a cooling system configured to pass cooling fluids through a cooling fluid supply port in a shroud, through a cooling system in which the cooling fluids contact the shroud and the s... | 05/15/2007 |
| 7150089 | Enhanced heat transfer for housings An apparatus that has housing for containing objects. The housing has two heat-conducting partial-boundaries having an interface between them. The apparatus also has a medium for enhancing heat transfer across the interface. ... | 12/19/2006 |
| 7052015 | Cooling arrangement for brush seal A brush seal adapted to restrict a fluid flow through a gap between a first component and a second component, comprising: a body; a brush pack secured to the body; and a passage through the body for introducing a cooling flow to the gap. The passage has a first end ... | 05/30/2006 |
| 6932351 | Packing case for cooling compressors and other machinery A packing case for cooling compressors and other machinery is disclosed. A packing case includes an opening through which a movable machinery shaft may be inserted such that the packing case is mounted on the shaft. In an exemplary embodiment, the packing case conta... | 08/23/2005 |
| 6725876 | Control valve with integrated electro-hydraulic actuator A compact fuel control valve is presented where a hydraulic manifold is used as both a valve bonnet and an actuator seat for the valve actuator. The valve body has a fuel inlet, a fuel outlet and a metering plug opening. A metering plug guide mounted within the mete... | 04/27/2004 |
| 6702300 | High temperature seal for large structural movements A high temperature sealing system is operative to seal an interface between adjacent hot structures and to minimize parasitic flow between such structures that move relative to one another in-plane or out-of-plane. The sealing system may be used to seal t... | 03/09/2004 |
| 6578851 | Gasket assembly for sealing mating surfaces A pair of substantially opposed mating surfaces are joined to each other and sealed in place by means of an electrically-conductive member which is placed in proximity to the mating surfaces. The electrically-conductive member has at least one element sec... | 06/17/2003 |
| 6503061 | Device for dissipating heat and cutting off power of a pump A heat dissipating and power cutting-off device of a pump has a heat dissipating ceramics ring fitted in a plastic member to form watertight connection in between to prevent water from flowing to a motor. The plastic member has a pivotal hole for a main b... | 01/07/2003 |
| 6478303 | Sealing ring packing A sealing ring packing (1) includes a cooled packing casing (4) that can be placed inside a stuffing box borehole (3), and holds at least one essentially annular slide ring (5) pressed against the moved component (2) to be sealed, whose outside periphery ... | 11/12/2002 |
| 6250806 | Downhole oil-sealed bearing pack assembly A downhole oil-sealed bearing pack assembly is provided for protecting bearing elements and seals. The bearing pack assembly includes a non-contact flow restrictor for reducing large differential pressures across sealing elements. The non-contact flow res... | 06/26/2001 |
| 6220814 | Turbine interstage sealing arrangement A gas turbine sealing arrangement which includes a seal housing having at least one seal in close proximity to the turbine rotor. The seal housing is preheated prior to turbine start-up to thermally move the seal housing and its seal radially away from th... | 04/24/2001 |
| 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 |
| 6142483 | Gasket assembly for sealing mating surfaces A gasket assembly for securing a pair of surfaces together wherein an electrically conductive gasket base having a central opening is provided with a pair of layers secured to opposite sides of the gasket base, with the layers being a fusible alloy, a bra... | 11/07/2000 |
| 6098992 | Vehicle compartment seals An anti-freezing seal for vehicle compartments, doors, trunks, etc. In cold climates, one of the problems is freezing shut of vehicle doors, for example, due to the moisture which accumulates on the seals during the daytime and then freezes at night. This... | 08/08/2000 |
| 6095234 | Conveyance vehicles A conveyance vehicle for the transportation of a vessel to be evacuated includes a heat sink in the form of one or more heat pipes located adjacent a seal forming part of a gripper assembly. The heat sink inhibits degradation of the seal when subjected to... | 08/01/2000 |
| 5727792 | Triple cartridge seal having one inboard and two concentric seals for chemical processing pump A chemical processing centrifugal pump is provided with a triple cartridge seal arrangement including a first seal axially spaced from a pair of concentric seals. The passageway along the pump shaft between the single seal and the radially inwardmost conc... | 03/17/1998 |
| 5718560 | Turbocompressor for non-ideal process gases An arrangement for a dry-gas sliding ring seal in a turbomachine which establishes ambient conditions in the region of the dry-gas sliding ring seals under which no fluid precipitates regardless of whether the machine is operating or not. By supplying hea... | 02/17/1998 |
| 5709389 | Shaft sealing arrangement having fluid flushing means Apparatus for providing a mechanical planar seal, as for example for use with a centrifugal pump having a rotating shaft, includes a primary seal formed of a movable first part rotatable with the shaft and a fixed second part or seat, a secondary seal axi... | 01/20/1998 |
| 5658127 | Seal element cooling in high speed mechanical face seals A mechanical face seal is provided that incorporates fluid passages through either or both of a first and a second element of the seal for directing a flow of cooling fluid to an exposed area of the second element which extends radially outward beyond the... | 08/19/1997 |
| 5639096 | Oil film cooled face seal Disclosed is an oil film cooled face seal that is comprised of an annular stator having a flat surface in rubbing contact with the flat sealing surface of a rotor. The rotor has a flange portion extending radially from a base portion. The base portion has... | 06/17/1997 |
| 5611659 | Method and a device for reducing the gap between a static part and a movable part A method and device for reducing a gap between a static part and a movable part. The device is operated at cryo temperatures. A gap is defined between the static part and the movable part. A cryo coolant channel has a coolant fluid disposed therein. The c... | 03/18/1997 |
| 5593165 | Circumferential flow channel for carbon seal runner cooling A fluid cooled seal arrangement for a gas turbine engine including a first sealing element coupled to a mechanical housing of the engine, and a second sealing element connected to a shaft rotatable within the housing. The first and second sealing elements... | 01/14/1997 |
| 5567380 | Rotary retort heat treating furnace seals The present invention provides a seal ring assembly for sealing a discharge end of a rotary retort heat treating furnace. The furnace contemplated by this invention has an outer furnace shell, a retort chamber, a rear plug, a cone casting, and a support r... | 10/22/1996 |
| 5560198 | Cooled gas turbine engine augmentor fingerseal assembly An augmentor for a gas turbine engine with a nozzle is provided having an outer casing, a liner, a stiffening ring, a plurality of fingerseals, and apparatus for fastening the stiffening ring and the fingerseals to the liner. The liner includes a pluralit... | 10/01/1996 |
| 5553867 | Triple cartridge seal having one inboard and two concentric seals for chemical processing pump A chemical processing centrifugal pump is provided with a triple cartridge seal arrangement including a single inboard seal and a pair of concentric seals located rearward (i.e. outboard) of the inboard seal, the concentric seals being closest to the pump... | 09/10/1996 |
| 5544897 | Cartridge seal having a high contact pressure seal and means for intersleeve adjustment including quench fluid delivery An improved mechanical seal of the cartridge-type providing an inboard compressed packing seal between dual shaft sleeves and the pump shaft, compressed between the shaft sleeves by action of a plurality of radially arranged set screws. A sharp edge loade... | 08/13/1996 |
| 5538275 | Ball joint seal with heat shield A rubber seal for vehicular ball joint assemblies located in the vicinity of a source of heat. The seal includes an integrally molded metal heat shield for facing the source of heat to prevent the deterioration of the seal from the heat. Such a seal with ... | 07/23/1996 |
| 5531457 | Gas turbine engine feather seal arrangement Adjacent platforms (16) have feather seals (34) in complementary slots (22). Hot grooves (40) carry cooling air across the seal and discharge it into the gap (20) between adjacent platforms. Grooves discharging from abutting surfaces are staggered and hav... | 07/02/1996 |
| 5516121 | Dry slip ring seal having independent cooling loops A dry slip ring seal for incorporation in apparatus comprising a fixed element, such as a casing, and a revolving element, such as a shaft. At least one of these elements incorporates an internal conditioning circuit enabling the circulation of conditioni... | 05/14/1996 |
| 5498007 | Double gas barrier seal A mechanical seal assembly having a deep groove pattern formed in the face of the rotating seal ring, which groove pattern includes two sets of straight angled deep grooves, the sets being angled in opposite rotational directions to provide pumping of bar... | 03/12/1996 |
| 5494299 | Temperature and pressure resistant rotating seal construction for a pump A seal construction is provided for sealing a rotating pump shaft against passage of a fluid along its central axis. The seal construction includes front and rear sealing flanges mounted coaxially to and rotatable with the pump shaft. A temperature stabil... | 02/27/1996 |
| 5484267 | Cooling device for a pump and corresponding barrier tank A centrifugal pump system including a pump having a rotating seal disposed therein, the temperature of the seal being substantially maintained at an acceptable level by circulating a temperature stabilizing liquid to and from a chamber arranged immediatel... | 01/16/1996 |
| 5472215 | Rotating high vacuum mercury seal A seal for communicating high vacuum onto rotating machinery such as a ceifuge. The seal comprises an outer pipe defining a volume to be evacuated, an inner pipe connected on one end to a vacuum source with the other end disposed within an end of the out... | 12/05/1995 |
| 5468002 | Mechanical end face seal having an improved mating ring A mechanical end face seal with a mating ring having a beveled inner diameter extending frusto-conically to the back face. Atmosphere or other fluids located outside of the housing can enter through the frusto-conical opening between the primary ring and ... | 11/21/1995 |
| 5421892 | Vertical heat treating apparatus A vertical heat treating apparatus includes a cap body, which is movable up and down, for sealing a treatment vessel that holds objects to be treated. A rotary loading device is provided with a rotary shaft which extends into a through hole provided in th... | 06/06/1995 |
| 5375852 | Rotating seal body for face type seal A rotating seal body for a face type seal having a rotor portion secured on and rotatable with a shaft and a stator portion for securement in a housing and sealing faces on each of the portions in rubbing abutment, wherein the seal has thermally conductiv... | 12/27/1994 |
| 5374208 | Ship, in particular deep draft vessel having concentric, contra-rotating propellers A ship, in particular a deep-draft vessel configured for travel on the oceans or great lakes, can have a hull with two concentrically rotating propeller shafts passing through the hull, and rotate in opposite directions to one another. The ship will gener... | 12/20/1994 |
| 5370400 | Fluid environment sealing system A sealing system for effecting a seal around a rotatable cylindrical shaft. The system is intended to be employed with a shaft which extends through a wall, such as a boat hull, into an aqueous environment. The system employs an elastomeric seal which def... | 12/06/1994 |
| 5343837 | Cylinder head sealing system and method A thermally conductive sealing system for the cylinder head joint of an internal combustion engine is disclosed comprising a spacer plate clamped in direct contact between the cylinder head and the cylinder block and a plurality of discrete fluid gaskets ... | 09/06/1994 |
