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| Number | Title | Issue Date |
| 7393434 | Method and device for stabilizing unseamed loops A method of stabilizing the seam loops of a papermaking fabric or other industrial fabric until the fabric is ready to be installed and seamed on a machine. Stabilizing the loops prevents torque imbalance and other forces from distorting the loop alignment over time... | 07/01/2008 |
| 7370864 | Balanced mechanical seal assembly A mechanical seal for providing a fluid-tight seal between a rotating shaft and a stationary housing comprises a first pair of seal members for sealing and separating a process fluid from a barrier fluid and a shuttle. The first pair of seal members comprises a firs... | 05/13/2008 |
| 7347423 | Arrangement in connection with mechanical seal An arrangement in connection with a mechanical seal includes at least two sliding surfaces pressing against each other, which are arranged to seal a gap between a rotating and a non-rotating machining part, and mechanism for providing a sealing fluid flow cooling th... | 03/25/2008 |
| 7311307 | Seal seat assembly with specialized features A seal seat assembly utilizes a positive mechanical drive between a seal seat and the bore of a pump component, which in turn is mounted to and driven by the shaft by means of a positive mechanical engagement therebetween. The grommet accommodates the positive mecha... | 12/25/2007 |
| 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 |
| 7252291 | Mechanical seal having a single-piece, perforated mating ring A mechanical seal (e.g., single mechanical seals, double mechanical seals, tandem mechanical seals, bellows, pusher mechanical seals, and all types of rotating and reciprocating machines) with reduced contact surface temperature, reduced contact surface wear, or inc... | 08/07/2007 |
| 7210687 | Shaft seal assembly A primary technical goal of this shaft seal device is to decrease the pressure of a sealant at a communication passage between a fluid chamber and a first seal portion, to further reduce the pressure by a floating ring, to make the first seal portion pressure-proof ... | 05/01/2007 |
| 7207751 | Gun drill guide and gun drill guide assembly A gun drill guide is disclosed comprising a cylinder body member of a resilient polymer material having a central opening extending therethrough, a radially extending flange means at one end thereof to engage the end face of a bearing assembly and an annular groove ... | 04/24/2007 |
| 7182346 | Multistage oil seal against different cutting fluids for a machine tool motor A multistage oil seal (4) includes a plurality of lips (7a, 7b, 7c) in a plurality of stages disposed around a motor shaft (1) of a machine tool along the axis of the motor shaft to protect internal members of ... | 02/27/2007 |
| 7174990 | Tangential stress reduction system in a loudspeaker suspension The invention is a suspension element having an outer edge and an inner edge. The suspension element, such as a spider or surround, varies in shape along at least a portion of the suspension element to help relieve both the radial and tangential stress placed on the... | 02/13/2007 |
| 7144015 | Modular gas seals cartridge A tandem gas seal assembly is described for sealing between the rotor and the casing of a rotary machine. The assembly comprises two sealing stages 10, 12 mounted axially adjacent to one another on the machine rotor. In the invention, wherein the two stages | 12/05/2006 |
| 7093836 | Seal device A seal device includes a first resilient seal ring having a first resilient seal portion and first and second seal portions; and a second resilient seal ring. The first resilient seal portion urges a first seal surface of the first seal ring against the second seal ... | 08/22/2006 |
| 7055826 | Seal and bearing assembly A seal and bearing assembly for use in rotating machinery of the type having a rotor which turns within a stationary housing. The rotor and housing define a seal cavity therein in which the seal and bearing assembly is positioned. The assembly comprises a first bear... | 06/06/2006 |
| 7004473 | Mechanical seal device A primary object of the present invention is to achieve a high sealing performance, to collect hazardous gas contained in a sealed process fluid, and to realize an easy disposition of a mechanical seal device. A typical configuration is that the end face of a shaft ... | 02/28/2006 |
| 6976681 | Slide ring seal assembly including a radial, rotation preventing arrangement A slide ring seal assembly includes a slide ring having an axially extending annular leg. The leg has radially outer and radially inner circumferential surfaces and a free axial end. A plurality of circumferentially spaced recesses are provided in leg at the free ax... | 12/20/2005 |
| 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 |
| 6962339 | Bellows type mechanical seal A sealing system for sealing one end of a rotating shaft from fluids. The sealing system includes a resilient bellows element connected at each end to a thrust plate. The bellows acts like a compression spring forcing the thrust plates against respective sealing ele... | 11/08/2005 |
| 6935633 | Shaft sealing device having a positioning ring and a retaining ring thereof A shaft sealing device includes a shaft tube, a main body, a fixed sealing ring, a positioning ring and a retaining ring. The shaft tube is provided with an outer flange and a rotary ring mounted thereto. The main body has an axial hole for supporting the shaft tube... | 08/30/2005 |
| 6932567 | Method and apparatus for controlling fluid leakage through gas turbine engines A method for controlling fluid leakage between a first pressure region and a second pressure region within a gas turbine engine using a first sealing member and a second sealing member. The first sealing member is movably coupled to a portion of the gas turbine engi... | 08/23/2005 |
| 6932348 | Mechanical sealing device Even high viscosity fluid or slurry-contained fluid can be securely sealed without deficiency of a liquid sealing device. The sealing liquid device includes an annular packing made of rubber-like elastic material, the annular packing having a secured section fitted ... | 08/23/2005 |
| 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 |
| 6918594 | Face seal assembly with composite stator A composite face seal has an annular seal rotor and an annular seal stator, both having a metal base portion and a radially extending flange. The flange has first and second axially facing surfaces. A first ceramic ring may be mounted to the first surface of the fla... | 07/19/2005 |
| 6916022 | Shaft seal A sealing assembly for extending around a rotating shaft for preventing the transmission of fluids along the shaft, in which a sealing element is biased towards the rotary sealing part; and a pusher sleeve extends between the sealing element and a housing. ... | 07/12/2005 |
| 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 |
| 6902168 | Sliding element A primary objective of the present invention is to decrease the friction coefficient of the sliding face of a sliding element and to improve its seal performance. The sliding element disposes a plurality of elongate dimples in the outer circumferential region and th... | 06/07/2005 |
| 6848689 | Shaft seal A shaft seal in which a rotary sealing part is mounted coaxially with the sealing element and forms therewith a contactless primary seal between opposed faces of the sealing element and rotary sealing part to substantially prevent fluid flow across the primary seal ... | 02/01/2005 |
| 6817840 | Shaft seal, in particular for an axial piston displacement compressor The invention relates to a subassembly, consisting of a drive shaft (12), a housing (10) with a through-bore (19), through which the drive shaft projects out of the housing and an axial mechanical seal consisting of a rotating seal ring (22 | 11/16/2004 |
| 6814355 | Mechanical split seal A split seal component includes two seal face segments in two holder halves and a method of assembly and installation. Each seal face segment has a primary sealing surface and a section extending axially from each primary sealing surface The holder halves are adapte... | 11/09/2004 |
| 6805357 | Bellows face seal assembly A seal head assembly includes a case. A ferrule is seated against the case. A spring is seated at one end against the ferrule. A spring seat receives a second end of the spring. The retainer ring has a band and a plurality of tabs, wherein the band engages the sprin... | 10/19/2004 |
| 6698669 | Pivot flow joint for high-pressure flow devices A pivot flow joint for high-pressure fluid-flow devices of the type including a rotating flow member connected to a non-rotating flow member. The pivot flow joint includes first and second axially-aligned seal bushings secured to the non-rotating and rota... | 03/02/2004 |
| 6688601 | Mechanical seal A mechanical seal includes a fixed ring, a rotating ring and a shaft sleeve. The fixed ring is connected in a sealed state to a housing. The rotating ring has a slide part and an engaging part. The slide part faces and slidably contacts with the fixed rin... | 02/10/2004 |
| 6685192 | Tandem seal A pair of primary and secondary mechanical seals are arranged tandem in an axial direction around a rotating shaft in a space between the rotating shaft and a housing having a shaft sealing part. The center or intermediate liquid is sealed into a center r... | 02/03/2004 |
| 6676131 | Sealing ring for a centrifugal separator Sealing ring (1) for a centrifugal separator with an axially open annular groove (7) for the sealing ring in a first rotor part (2) and a relative to the first rotor part (2) axially movable second rotor part (3), against which the sealing ring (1) sealin... | 01/13/2004 |
| 6672591 | Drive pins in a mechanical seal A mechanical seal provides a sealing between a rotatable shaft and a housing. The seal has a stationary part for connection to the housing and a rotary part for rotation with the shaft. Mating sealing faces are carried by the stationary and rotary parts a... | 01/06/2004 |
| 6655695 | Face seal assembly with composite rotor A composite face seal having an annular seal rotor with a metal base portion and a radially extending flange. The flange having first and second axially facing surfaces. A first ceramic ring is mounted to the first surface of the flange by a first braze j... | 12/02/2003 |
| 6655693 | Non-contacting gas compressor seal A non-contacting gas compressor seal assembly is disclosed with an intermediate buffer chamber. The process gas is corrosive or otherwise hazardous and is contained from entering the atmosphere by pumping the barrier gas toward the process fluid. The inbo... | 12/02/2003 |
| 6616144 | Mechanical seal with embedded lubrication A mechanical seal for providing a seal around the drive shaft of a variable displacement swash plate type compressor used in an air conditioning system for a vehicle comprising a rotating bearing surface, an associated stationary bearing surface and a lub... | 09/09/2003 |
| 6616145 | Face seal device for high rotational speeds A face seal device for use with components rotating at a high rotational speed includes a non-rotating face seal ring (5) and a rotary face seal ring (11) mounted in a loose fit on and rotatable together with the rotary component. The rotary face seal rin... | 09/09/2003 |
| 6601854 | Shaft seal A shaft seal in which a rotary dealing part is mounted coaxially with a sealing element and forms therewith a primary seal between opposed faces of the sealing element and the rotary sealing part to substantially prevent fluid flow across the primary seal... | 08/05/2003 |
| 6592365 | Seal for oven circulating fan A multiple-piece seal is used for a cure oven circulating fan. The seal may be readily positioned along the length of the shaft to control the small clearance between the rotating seal and the oven such that there is no contact between the seal and the ov... | 07/15/2003 |
