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| Number | Title | Issue Date |
| 8337315 | Propeller shaft A propeller shaft includes a first shaft and a second shaft. The first shaft has a torque transmission face in which a plurality of fine grooves extending in a first direction (face width direction) is formed. The second spline shaft is coupled to the first spline s... | 12/25/2012 |
| 8262484 | Telescopic shaft for vehicle steering shaft and grease composition for lubricating telescopic shaft A telescopic shaft for vehicle steering installed in a vehicle steering shaft. A male shaft and a female shaft are non-rotatably and slidably fitted to each other and an outer peripheral portion of the male shaft and an inner peripheral portion of the female shaft c... | 09/11/2012 |
| 8167727 | High speed gear coupler The coupling apparatus includes a gear shaft, including a sun gear at one shaft end for connecting to a reduction gear box. The sun gear drives a planetary gear train inside the gearbox. The coupling apparatus has outer splines on the gear shaft other end that mesh ... | 05/01/2012 |
| 8066573 | Tubular member having multiple sized splines A driveshaft assembly includes a tubular slip member having a first spline member having a plurality of splines formed thereon having a first tolerance and a second spline member having a plurality of spline sections. The plurality of spline sections includes a plur... | 11/29/2011 |
| 7771281 | Gear coupling In a conventional gear coupling, since an end cover is attached to a sleeve, lubricant has sometimes leaked out through the joint between the sleeve and the end cover. A gear coupling includes: a pinion having external teeth, and fixed to a first rotary shaft; a sle... | 08/10/2010 |
| 7491127 | Spline with lubricant retention feature for use in torque limiter A torque limiter for use on an aircraft comprises a drive shaft having a toothed outer portion, an output shaft, and a spline having an aperture therethrough for receiving the toothed portion. The spline is configured to rotationally couple the drive shaft to the ou... | 02/17/2009 |
| 7485044 | Shaft assembly and method of manufacture thereof A shaft assembly comprises an annular hub with a shaft extending therefrom. The hub and the shaft are integrally formed from a single forging, thereby reducing stress concentration locations within the assembly. The hub includes a circumferential wall having a wall ... | 02/03/2009 |
| 7354216 | Grease seal cup to retain lubrication for life extension in existing splined joint A grease seal cup for a splined joint between a drive shaft and a driven shaft comprises a cylindrical portion adapted to form a seal with the outer surface of the drive shaft and a seal with a sealing member, such as a spanner nut, of the driven shaft. The grease s... | 04/08/2008 |
| 7337643 | Rolling mill drive with a coupling and decoupling device A rolling mill drive with at least one drive spindle arranged between a drive unit and a driven roll and terminating in a spindle head connected detachably to the neck of the roll. A coupling and decoupling device is arranged between the neck of the roll and the spi... | 03/04/2008 |
| 7261636 | Drive A drive in an agricultural machinery driveline has a drive housing (1), which forms an interior (18), and is at least partially filled with lubricant. A first shaft (4) is rotatably supported in the drive housing (1) around a longitudinal... | 08/28/2007 |
| 7152708 | Propshaft with improved crash-worthiness A frangible telescopic propeller shaft includes an elongated hollow cylindrical body, a reduced diameter intermediate portion along a length of the body, and at least one spin-formed transition area between the intermediate portion and the body. The transition area ... | 12/26/2006 |
| 7108058 | Packing assembly for rotary drilling swivels and pumps having rotating shafts A packing assembly for use with a rotary drilling swivel having a cylindrical wash pipe comprising a housing assembly including a packing gland forming a sealing assembly chamber around the wash pipe, the packing gland including an injection port in open communicati... | 09/19/2006 |
| 7052398 | Pressure regulator assembly for use with a slip joint in a driveshaft assembly A slip joint includes a structure that prevents a negative pressure situation from occurring within a sealed lubricant chamber during operation thereof. The slip joint includes a male splined member having a plurality of external splines formed thereon that cooperat... | 05/30/2006 |
| 6997811 | Sealed flexible motor coupling A hermetic seal functions as a closure between opposite ends of the coupling by combining a metal sleeve and an elastomer sleeve extension. The metal sleeve is sealingly attached to the outer surface of one end of the coupling and the elastomer sleeve, sealingly att... | 02/14/2006 |
| 6863613 | Sealed axially displaceable slip joint A slip joint includes first and second shafts that are connected for concurrent rotational movement and for relative axial movement, such as by respective pluralities of axially extending spline. A seal can is secured to the first shaft and extends about a portion o... | 03/08/2005 |
| 6722990 | Pressure regulator assembly for use with a slip joint in a driveshaft assembly A slip joint includes a structure that prevents a negative pressure situation from occurring within a sealed lubricant chamber during operation thereof. The slip joint includes a male splined member having a plurality of external splines formed thereon that cooperat... | 04/20/2004 |
| 6196922 | Universal joint coupling in particular arranged on a universal joint shaft of an eccentric worm machine The universal joint coupling comprises a housing (20) in which a torque transmitting pair of coupling members is arranged between two axial force transmitting pairs of coupling members (22, 24), each of which includes a spherical cup (22) and a ball segme... | 03/06/2001 |
| 6161954 | Mud mixing machine and coupler An apparatus for mixing powdered or premixed drywall joint compound and water to form a joint compound mixture or slurry includes a portable container rig with a container, pumping components, and mixing components on a dolly. A mixing element rests withi... | 12/19/2000 |
| 5979207 | Rolling mill drive with gear-type joint spindles and with a device for circulatory lubrication A rolling mill drive with gear-type joint spindles arranged between driveable rolls and the gear units of the driveable rolls and equipped with a device for circulatory or pressure lubrication of the gear units. Each spindle has a grooved oil supply ring ... | 11/09/1999 |
| 5960757 | Controlling apparatus for varying a rotational or angular phase between two rotational shafts A shoe housing 3 is connected to and rotatable together with an input shaft. A vane rotor 9 is connected to an output shaft and accommodated in shoe housing 3 so as to cause a rotation within a predetermined angle with respect to shoe housing 3. Vane roto... | 10/05/1999 |
| 5716276 | Yoke shaft for a vehicular driveshaft assembly A vehicular driveshaft assembly includes a first universal joint connected to an aluminum yoke shaft having an externally splined hollow body. A first open end of an aluminum sleeve receives the splined body of the yoke shaft. Internal splines of the slee... | 02/10/1998 |
| 5687612 | Power transmitting apparatus for vehicle A power transmitting apparatus for use in a transportation vehicle includes a motor shaft of a vehicle-driving motor, an input shaft operatively connecting with the motor shaft, output shafts provided in parallel with the input shaft to be connected with ... | 11/18/1997 |
| 5679076 | Flexible gear coupling A flexible gear coupling which stirs the enclosed lubricant to extend the life of the lubricant. A stirring device is made of elastic material and has a first part which is fixed either to a sleeve or a pinion and a movable part which is moved by centrifu... | 10/21/1997 |
| 5655968 | Driveshaft with sealed slip joint seal A slip joint for a driveshaft having first and second universal joint yokes includes a first shaft extending rearwardly of the first yoke and rotatable therewith and a second shaft extending rearwardly of the second universal joint yoke and rotatable ther... | 08/12/1997 |
| 5647597 | Retractable seal for oil-filled rotating machine A rotating machine has a splined primary shaft rotatably mounted in an opening of an oil-filled housing and a primary seal carried by the housing for sealing with a mating secondary splined shaft upon insertion of the secondary shaft into the housing open... | 07/15/1997 |
| 5605337 | Pivoting seal for oil-filled rotating machine A rotating machine has a splined primary shaft rotatably mounted in an opening of an oil-filled housing and a primary seal carried by the housing for sealingly engaging with a mating splined secondary shaft upon insertion of the secondary shaft into the h... | 02/25/1997 |
| 5366399 | Marine stern drive with lubricated and semi-sealed engine output coupler A marine stern drive has an engine output coupler driven to rotate about an axis with a hub that has an axial opening. The forward end of the axial opening is splined and the rearward end is non-splined. The axial opening receives an output driveshaft. Th... | 11/22/1994 |
| 5230658 | Driveshaft with slip joint seal A slip joint seal for a driveshaft is between two universal joint yokes. A male splined shaft rotates with a first yoke and a female splined shaft rotates with a second yoke, with the two being mechanically engaged for slidable but nonrotational movement ... | 07/27/1993 |
| 5135060 | Articulated coupling for use with a downhole drilling apparatus A downhole drilling apparatus which includes a drive train having a downhole motor device and a coupling for permitting bending of the drive shaft to accommodate directional drilling. The coupling includes two distinct portions. The first portion transmit... | 08/04/1992 |
| 5119905 | Accessory drive spline lubrication system for a turbine engine reduction gear box An accessory drive spline lubrication system for a turbine engine reduction gearbox prevents the continuing loss of engine oil resulting from an ineffective seal between an engine drive shaft and an accessory driven shaft. The spline area is provided with... | 06/09/1992 |
| 5067357 | Coaxial type starter device A coaxial type starter device comprises an overrunning clutch device having a clutch inner member and a pinion shaft with a pinion at an end, the pinion shaft being inserted in the clutch inner member so as to be engageble therewith by helical splines for... | 11/26/1991 |
| 4990121 | Rolling mill drive having a spindle with curved toothing A rolling mill drive with axially slidable spindles arranged between drive shafts and drive rolls, particularly between driven necks of pinions and drive necks of rolls. The spindle heads of each spindle are each provided with a wobbler with a curved toot... | 02/05/1991 |
| 4976655 | Connecting rod assembly for downhole drilling A connecting rod assembly used in downhole drilling that has an articulated coupling secured to each end of a rigid connecting rod. This assembly connects via the articulated couplings, to axially misaligned shafts and transfers both rotational and axial ... | 12/11/1990 |
| 4913671 | Marine drive with lubricated output coupler A marine stern drive (10) has an engine output coupler with a coupler hub (56) having an axially splined opening (58) receiving the forward splined end (28) of the output drive shaft (24). The coupler hub has a pair of axial channel passages (60, 62) ther... | 04/03/1990 |
| 4909773 | Swivel coupling Two pairs of axial force transmitting coupling members (22, 24) and one pair of torque transmitting coupling members (26, 28) are arranged inside a housing (20). An annular cavity (42) each is formed in the housing (20) between each of the two pairs of ax... | 03/20/1990 |
| 4904214 | Marine stern drive with lubricated and sealed output coupler A marine stern drive (10) has an engine output coupler (60) driven to rotate about an axis and having a hub (70) with a splined axial opening (72) therein which is open-ended at the front and rear. A splined output driveshaft (78) is received in the splin... | 02/27/1990 |
| 4819755 | Telescoping drive shaft having lubricating passage A telescoping drive shaft comprising a first drive shaft element which telescopingly receives a second drive shaft element which is provided with lubricating passages. Lubricating grease held in the first drive shaft element can be directed through the lu... | 04/11/1989 |
| 4771864 | Lubricated spline joint A lubricating spline joint for providing a viscous damping function includes a first member defining an internal spline, a second member defining an external spline engaged therewith, a seal ring between the members at one end of the splines, and a radial... | 09/20/1988 |
| 4650441 | Flexible gear coupling inspection port An inspection port to permit inspection of internal gears in a flexible coupling of the type used to connect rotating shafts in machinery.... | 03/17/1987 |
| 4614254 | Braking system incorporating at least one sliding brake disc The braking system incorporates at least one brake disc disc (26 36) mounted so as to slide axially on a hub (22) along key mechanisms (30, 32). According to the invention the braking system incorporates an integral device for forced greasing (60) of the ... | 09/30/1986 |
