Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7413037 | Metal face seal for an earth-boring bit A metal face seal for an earth boring drill bit where the drill bit has a bit body, at least one bit leg, a bearing pin on each bit leg, and a cone rotatably mounted on each bearing pin. The metal face seal is located in the cavity formed between the interior surfac... | 08/19/2008 |
| 7370865 | Assembly including face seal sized to interference fit in housing An assembly for a tracked vehicle includes a wheel defining a wheel cavity and a face seal including a rigid sealing ring and a flexible ring disposed on the sealing ring, the flexible ring having an outermost substantially cylindrical surface defining a maximum dia... | 05/13/2008 |
| 7367739 | Two component seal A pair of pivoting parts are held together with a pin, with a first part, such as a rod end of a hydraulic actuator, positioned between two flanges of a bracket, with the flanges having surfaces mating with sides surfaces of the rod end. A seal is placed in each of ... | 05/06/2008 |
| 7293778 | Systems and methods for sealing between stators and rotors A seal is used between a housing and a shaft having an axis. The seal includes a first portion and a second portion engageable with each other and movable relative to each other. The first portion and the second portion are configured to be received in a cavity betw... | 11/13/2007 |
| 7201381 | Metallic seal The present invention is directed to a resilient, annular, metallic seal member having a generally “j” shaped cross-section. The annular, metallic seal member includes a first end portion having a first distal end, a generally curled second end portion that exte... | 04/10/2007 |
| 7188691 | Metal seal with impact-absorbing ring Disclosed is a seal assembly for dynamically sealing between rotatable members, such as employed to seal the rolling cone of a rock bit. One preferred assembly includes an energizer, first and second seal rings, and a cushioning ring having an L-shaped cross-section... | 03/13/2007 |
| 7121555 | Seal assembly and crawler-track connection structure A seal assembly has simple assembly structures, and provides secure sealing effects. A crawler-track connection structure allows the seal assembly to be easily mounted, and securely prevents overflow of a lubricant and the like to the outside. A pair of seal rings (... | 10/17/2006 |
| 7108418 | Bearing seal assembly for concrete auger mixer and method for using same An auger mixer for mixing a concrete mix includes an elongated mixer housing having a mixing chamber for mixing the concrete mix therein. A mixing auger is rotatably mounted within the mixing chamber. A bearing assembly mounts one end of the auger shaft to the mixer... | 09/19/2006 |
| 7097179 | Apparatus and method for manufacturing rubber-wrapped spiral wound gaskets A spiral wound gasket made of an elongate band with a portion of the elongate band jacketed by a resilient filler material, the jacketed elongate band wrapped in a plurality of overlapping turns to define a radially thick reinforcing member with the band in each tur... | 08/29/2006 |
| 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 |
| 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 |
| 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 |
| 6955359 | Seal assembly and crawler-track connection structure A seal assembly has simple assembly structures, and provides secure sealing effects. A crawler-track connection structure allows the seal assembly to be easily mounted, and securely prevents overflow of a lubricant and the like to the outside. A pair of seal rings (... | 10/18/2005 |
| 6951373 | Crawler belt and seal for use therein A seal (21) is constituted by an outer lip portion (22) to be held in abutting engagement with an outer link portion (9) of a crawler belt (7), an inner lip portion (23) to be held in abutting engagement with a bush (11), an... | 10/04/2005 |
| 6708980 | Mechanical sealing device Even high viscosity fluid or slurry-contained fluid is 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 with... | 03/23/2004 |
| 6472786 | Bearing protection assembly for motors A bearing protection assembly protects a motor having a rotating shaft. The motor includes a bearing carried on the shaft, having one side proximal the motor and one side distal the motor. A support member is positioned adjacent the bearing's distal side ... | 10/29/2002 |
| 6213471 | Seal assembly with stabilized seal rings Metal-to-metal face seals are commonly used between relatively rotating components to maintain a quantity of lubricating fluid within one component while keeping dirt and abrasives from entering. The positioning of the sealing faces of the seal rings is c... | 04/10/2001 |
| 6186511 | Seal assembly with an interlocking load ring A face seal assembly comprises a pair of confronting seal rings having mutually-engaging seal faces. The seal faces are maintained in sealing engagement by a pair of resilient load rings that are positioned between the seal rings and a pair of housings th... | 02/13/2001 |
| 6176491 | Sealing device In order to ensure that the working life of the sealing device is at least comparable to that of the remaining parts of the crawler track, the resilient annular element comprises a first annular portion and a second annular portion. The first annular port... | 01/23/2001 |
| 6113482 | Metal-detectable elastomeric material for piston seals and the like An elastomeric material for articles such as dynamic seals and the like is rendered detectable by conventional metal detectors through the incorporation of particles of a metallic alloy. Preferably, the resulting impregnated material contains at least 0.2... | 09/05/2000 |
| 6086069 | Metal ring seal In a metal to metal face seal assembly, a metal ring seal has a J-shaped cross-section with the hook portion of the ring seal forming an annular notch which receives and restrains a resilient load ring.... | 07/11/2000 |
| 6053506 | Slide ring seal assembly including a supporting ring having an embedded reinforcing body A slide ring seal assembly includes a slide ring having a radial slide face and a circumferential conical surface; a support ring, made of an elastic material, surrounding the slide ring and having a circumferential conical surface; an annular elastic rol... | 04/25/2000 |
| 5899459 | Track joint sealing assembly having a ceramic seal member and elastomeric spring members for sealing a track joint in a track chain A track seal assembly adapted to seal a track joint includes a track link and a first ceramic seal member. The track seal assembly further includes a first spring member positioned between the track link and the first ceramic seal member. Additionally, th... | 05/04/1999 |
| 5762343 | Slide ring seal assembly A slide ring seal assembly includes a slide ring member and a counterring member adjoining the slide ring member in axial alignment therewith. A force-exerting arrangement which axially resiliently presses the two ring members to one another includes a fi... | 06/09/1998 |
| 5642890 | Slide ring seal assembly A slide ring seal assembly includes a slide ring having a slide face for engaging a slide face of an additional slide ring and a plastic part having a conical face. An annular elastic body surrounds and engages the conical face and is adapted to be compre... | 07/01/1997 |
| 5577739 | Mechanical seal with angular sealing surface An improved mechanical seal of the type useful to form a seal between a stationary housing and a rotatable shaft having a shaft axis extending through an opening in the housing. The mechanical seal has stationary components and rotatable components. The s... | 11/26/1996 |
| 5441282 | Mechanical seal An improved mechanical seal of the type useful to form a seal between a stationary housing and a rotatable shaft. The seal comprises a rotatable seal element and a stationary seal element. There is an elastic element which forces the rotatable and station... | 08/15/1995 |
| 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 |
| 5390997 | End face sealing assembly device for track shoe coupling An end face sealing assembly device (S2) comprises a seal ring (15) having an approximately parallelogrammatic cross section so that an annular lip (15c) contacts a bushing end face (4a); a support ring (14) having an approximately L-shaped cro... | 02/21/1995 |
| 5332235 | Mechanical face seals A mechanical face seal has a first seal face member mounted in fixed rotational and axial relationship and sealed with respect to a housing, and a second seal face member mounted with respect to a shaft by means of an elastomeric bellows unit, the bellows... | 07/26/1994 |
| 5186473 | Device for sealing a gap between two relatively moving surfaces A seal unit for sealing a clearance between relatively movable first and second machine components includes a low-friction, wear-resistant sealing element having a sealing face for sealingly engaging a surface of the first machine component; a spring havi... | 02/16/1993 |
| 5096396 | Rotary apparatus having passageways to clean seal chambers Improvements are disclosed in a rotary, lobar, positive-displacement pump and in a rotary, centrifugal pump, whereby all product-contacting areas of the pumps can be effectively cleaned without disassembly, i.e., cleaned in place. Non-rotating seals seal ... | 03/17/1992 |
| 5080567 | Gerator hydraulic device having seal with steel and resilient members A seal utilizing a two part construction of a rubber resilient body and a steel sealing wear member for use in a cavity to create a seal between two parts that have relative motion in respect to each other.... | 01/14/1992 |
| 4968044 | Rotary facial seal and bearing assembly A rotary facial seal and a thrust bearing are adapted to be installed between inner and outer concentric relatively movable members, such as, the spindle housing and axle of a motor vehicle, the facial seal having an annular diaphragm made up of an inner ... | 11/06/1990 |
| 4838560 | Slide ring seal A slide ring seal for sealing a gap between a rotatable and non-rotatable machine part. The seal comprises at least one static seal ring to be attached to the non-rotatable machine part and provided with a slide ring and at least one counter ring to be fa... | 06/13/1989 |
| 4822056 | Adjustable rotary shaft seal A compensating rotary seal assembly adapted to function as a substitute for a stuffing box. The seal assembly includes end plates which may be variably oriented with respect to each other by threaded bolts extending between the plates. The bolts are adjus... | 04/18/1989 |
| 4809590 | Sealing arrangement for rotary vane-type motors A device for sealing surfaces defined between a collar of a motor shaft and a motor cover comprises a pre-stressed sealing ring mounted at the surfaces which extend at right angles relative to each other, a viscous elastic element for prestressing the sea... | 03/07/1989 |
| 4804196 | Sealing assembly for a device having a rotatable shaft To achieve increased critical speeds in turbines, pumps and other machines by limiting overhang while eliminating secondary sealing components, a face seal is provided for a rotatable shaft. The face seal includes an annular sealing ring formed of a rigid... | 02/14/1989 |
| 4759553 | Dynamic rotary face seal A seal element is positioned within an outer casing and has an anchoring portion which is sealingly secured to the periphery of a rotating shaft by a surrounding coil spring. A radial portion on the seal element extends radially outward from the anchoring... | 07/26/1988 |
