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| Number | Title | Issue Date |
| 7416224 | Sliding ring fixing A device for fixing the sliding ring of an axial sliding ring seal for an axial rotary transmission leadthrough to a sliding ring support includes a conically tapered radial outer casing surface of the sliding ring and a holding apparatus designed as a cap nut and h... | 08/26/2008 |
| 7367783 | Rotating fluid machine A rotary valve for switching supply passages, and discharge passages of high-temperature and high-pressure steam for a rotor rotatably supported at a casing is constructed by making a fixed side valve plate and a movable side valve plate abut to each other on a slid... | 05/06/2008 |
| 7347214 | Rotary shaft sealing mechanism and liquid processing apparatus The present invention provides a rotary shaft sealing mechanism having the seal between the rotary shaft and the seal ring improved, and a liquid processing apparatus including the rotary shaft sealing mechanism. The cleaning processing apparatus 1 com... | 03/25/2008 |
| 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 |
| 7296800 | Seal device A seal device that includes a seal portion protruding from a resilient body member in a common direction with a seal lip member. The seal portion being shorter in length and having a thickness that is thinner than the lip seal member. A gap is defined between an act... | 11/20/2007 |
| 7159873 | Shaft seal The present invention relates to a seal assembly for use in a rotary machine. The seal assembly comprises a first member and a seal carrier mounted to the first member by a mounting member, a second member spaced from the first member and a seal running member posit... | 01/09/2007 |
| 7090221 | Seal device A seal contact surface of a seal lip member and a protruding lip member of an end face seal are separated from each other and frictional heat generated at the seal lip member due to sliding motion is prevented from being transferred to the end face seal for softenin... | 08/15/2006 |
| 7040627 | Cinchpac self-loading rotary shaft seal A seal assembly which is secured to a rotating shaft and which seals around the shaft. The seal assembly has molded grooves adjacent to the shaft which grasp the shaft and prevent leakage. ... | 05/09/2006 |
| 7029012 | Mechanical seal without elastomers A seal that provides sealing between a rotatable shaft and a housing has a stationary part for connection to the housing and a rotary part for rotation with the shaft. The rotary part includes a sleeve for mounting on the shaft. One end of the sleeve is provided wit... | 04/18/2006 |
| 6969071 | Face seal assembly A face seal assembly including an annular mating ring housing having a proximal end surface with a channel therein, a mating ring insert disposed in the channel, the mating ring insert including a mating ring compressed within a first band to maintain the integrity ... | 11/29/2005 |
| 6921078 | Slip ring seal Slit ring seal, especially running gear seal, consisting of an angle-shaped slip and/or opposing ring with a circumferential surface designed to accent a ring-shaped, approximately cross-sectional plate-spring shaped sealing body, where the sealing body, as needed, ... | 07/26/2005 |
| 6918592 | Face seal device A face seal device for sealing a shaft relative to a casing includes a pair of co-operating seal rings, one of said seal rings serving for non-rotational mounting on the casing and the other for common rotation with the shaft. The seal rings include bores through wh... | 07/19/2005 |
| 6905123 | Seals A gas seal for providing a seal between a pair of relatively rotatable components is provided with a stand-still seal which will seal between the components when the components are stationary, the stand-still seal having a sealing element mounted in sealing relation... | 06/14/2005 |
| 6338489 | Mechanical seal A mechanical seal including a slide ring and a counter-ring that are axially preloaded against each other along sealing surfaces through the application of spring tension. These surfaces contact each other in a manner that permits the sealing surfaces to ... | 01/15/2002 |
| 6142476 | Mechanical seal A mechanical seal having two balance diameters and balance factors established separately and freely for two fluids which are opposed at a sealing face by providing two seal packings with a seal ring. A sidewall of a packing groove is removed on the seale... | 11/07/2000 |
| 6120034 | Secondary sealing assembly for mechanical face seal A mechanical seal for providing fluid sealing between a housing and a rotatable shaft includes a gland assembly, a secondary sealing assembly, and first and second seal rings each having a seal face. The secondary sealing assembly provides fluid sealing b... | 09/19/2000 |
| 6092809 | Secondary seal for a sealing arrangement A sealing arrangement for sealing lubricating oil in and debris out of a final drive of an earth moving machine is disclosed. The sealing arrangement includes a secondary seal for use in severe environments to protect a primary oil seal. The secondary sea... | 07/25/2000 |
| 5961122 | Split mechanical face seal and method of assembly thereof A split mechanical face seal assembly for mounting around a shaft, and having two holder halves, each of the two holder halves having first and second axial ends, each first end defining a counterbore formed therein, a seal face half received in the count... | 10/05/1999 |
| 5769605 | Sealing device for a rotary shaft A sealing device for a centrifugal pump is mounted on an axle of the centrifugal pump and includes a retainer ring, a supporting ring, a rotor ring, and a fixing ring. The supporting ring includes a plurality of tongues extending outwardly and radially th... | 06/23/1998 |
| 5725219 | Mechanical face seal with elastomeric bellows unit and intermeshing drive bands Mechanical face seal has a first sealing mounted in fixed axial and rotational relationship and sealed with respect to a housing and a second sealing ring mounted in fixed rotational relationship but movable axially with respect to a shaft. The second sea... | 03/10/1998 |
| 5692756 | Refrigeration compressor and compressor seal A refrigeration compressor including a compressor housing, a compressor shaft rotatably positioned within the housing, a refrigerant positioned within the housing, a face seal operatively positioned between the housing and the shaft, and a lip seal operat... | 12/02/1997 |
| 5639098 | Adjustable seal for propeller drive shaft An adjustable sealing device for sealing between rotatable drive shaft, such as a propeller drive shaft, and the aperture in a structure, such as the hull or bulkhead of a vessel, through which the shaft passes. The device is generally rigid and is compri... | 06/17/1997 |
| 5556110 | Shroud enclosure for brittle mechanical face materials A mechanical seal assembly having a rotatable seal ring connected to the shaft and a non-rotatable seal ring connected to the housing. A cylindrical drive ring encircles the rotatable seal ring and an annular shroud is mounted to the cylindrical drive rin... | 09/17/1996 |
| 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 |
| 5505465 | Mechanical seal stud torquing system An improved cartridge mounted mechanical seal for providing a seal between a housing and a rotatable shaft is provided, including at least one radial stud which extends from the inside of the rotary sleeve of the seal through the rotary sleeve and into th... | 04/09/1996 |
| 5489105 | Sleeve for shaft seal A shaft sleeve for a mechanical seal assembly having fixed radial lugs for rotationally anchoring one seal ring on an inboard side of the sleeve and depressible anchors for rotationally anchoring a second sealing ring on an outboard side of the seal assem... | 02/06/1996 |
| 5470158 | Seal for rolling bearings An annular sealing groove is provided at an axial end of one of an outer or inner bearing ring. The seal element comprises an annular ring of an elastomeric material with a plurality of circumferentially periodic radially extending projections integrally ... | 11/28/1995 |
| 5409241 | Positive drive compensating shaft seal A compensating positive drive rotary shaft seal assembly comprises a two-part housing, each housing part including a radially directed stator surface surrounding the shaft. A collar is keyed to the shaft between the stators, and an axially shiftable rotor... | 04/25/1995 |
| 5409240 | Seal with self-lubricating contact surface A seal between a housing and a rotatable shaft is provided, comprising a first ring member generally concentric with a rotatable shaft, the first ring member being attachable to the shaft in a non-rotatable position relative to the shaft, the first ring m... | 04/25/1995 |
| 5388843 | Fluid film seal Fluid film seal for shafts rotating at high speeds with improved centering means for low unbalance of the rotating seal ring. Centering and drive means are combined and interspaced at the center portion of the outer diameter of the symmetrical rotatable s... | 02/14/1995 |
| 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 |
| 5348312 | Cassette seal A cassette seal for sealing off the gap between a bore hole and a shaft. The seal includes an inner ring which is secured to the shaft and has a groove open radially to the outside. The seal also includes an outer ring secured in the bore hole with a radi... | 09/20/1994 |
| 5332361 | Shaft seal arrangement for water pump A water pump, especially for the cooling system of a combustion engine of a car, has a housing with a space for a fluid. This space contains a pump device. The pump device is mounted on a shaft which projects form the housing. The shaft rotates while bein... | 07/26/1994 |
| 5295549 | Mechanical lock to prevent seal ring rotation An earth boring bit of the type having at least one rotatable cutter on a bearing shaft, a hydrostatic pressure compensator to balance the pressure of the lubricant with the pressure of the drilling fluid in the borehole, a metal face seal assembly of the... | 03/22/1994 |
| 5275421 | Mechanical seal stud torquing system An improved cartridge mounted mechanical seal for providing a seal between a housing and a rotatable shaft is provided, including at least one radial stud which extends from the inside of the rotary sleeve of the seal through the rotary sleeve and into th... | 01/04/1994 |
| 5263444 | Seal, and sealed T-joint A seal for the T-joint between upper and lower engine crankcase members and a crankshaft seal member has a longitudinal portion received between and engaging the upper and lower crankcase members, and a generally triangular tip formed by a shorter side an... | 11/23/1993 |
| 5199172 | Method of manufacturing a pinless retainer for a primary ring A mechanical seal for use between a housing and a rotatable shaft supported by the housing having adjacent annular primary and mating sealing rings, each ring having a generally radial sealing face and means for sealing and nonrotatably retaining the firs... | 04/06/1993 |
| 5199719 | Sealing arrangement A sealing arrangement is provided and includes a slide ring seal, and a counter ring that is accommodated in a holder that is provided with a presser sleeve via which, in an installed state, the sealing arrangement is seated with a press fit on a componen... | 04/06/1993 |
| 5192085 | Rubber drive system mechanical seal A mechanical seal particularly well suited to use in rotary equipment handling abrasive slurries. The seal comprises a split rotary face biased toward a split stationary face by a cone spring. The cone spring is encased in elastomeric material which inclu... | 03/09/1993 |
| 5188377 | Externally-mounted, stationary-design, self-aligning rotary face seal An externally-mounted, stationary-design, self-aligning, rotary face-seal is provided for securement to a rotatable shaft member extending through a housing of equipment containing a media (e.g. liquid, gas or granular solids) which is to be sealed therei... | 02/23/1993 |
