Helically Coiled Spring Patents (Class 475/241)
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Patent number: 11891900Abstract: Over-acceleration protection mechanism for ICE or turbine speed regulator with a bushing driven by the gears. The bushing, the component, the washer, the thread, are joined together. The component screws to the thread through the thread. The weights are fitted to the component through the pins and the safety clips, including the valve which is secured by the nut. The lid is screwed to the bushing by means of the screws, while the counterweights come out of the openings of the lid. The thrust bearing and the pressure spring are mounted on the component, adjusted by the screw. The device operates through the centrifugal force which forces the counterweights to rotate in its direction of rotation and to displace the valve by compressing the spring. Then the holes of the fittings communicate with each other, allowing the oil to pass through the joints and the tube and actuate the system.Type: GrantFiled: October 31, 2019Date of Patent: February 6, 2024Inventor: Lampros Sarbanis
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Patent number: 11718170Abstract: Methods and systems for a vehicle transmission are provided herein. The vehicle transmission includes an input interface configured to mechanically couple to a motive power source. The vehicle transmission further includes a first disconnect device releasably mechanically coupling a first output to a first drive axle and a second disconnect device releasably mechanically coupling a second output to a second drive axle.Type: GrantFiled: November 30, 2021Date of Patent: August 8, 2023Assignee: Dana Belgium N.V.Inventors: Kurt Cattoor, Filip D. Schacht
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Patent number: 11703123Abstract: A driveline component includes a housing, a first rotating component and a second rotating component, an actuator and a biasing component. The actuator has a body coupled to the first rotating component, the actuator drives the body relative to the second rotating component, and the body is movable between a first position in which the body is not coupled with the second rotating component and a second position in which the body is coupled with the second rotating component. The biasing component has a retainer and a spring, the retainer is in contact with a stop surface that limits movement of the retainer, the spring is fixed to the retainer on one side of the spring and the spring is contacted by the body during at least a portion of the movement of the body to provide a biasing force on the body.Type: GrantFiled: April 7, 2022Date of Patent: July 18, 2023Assignee: GKN Automotive LimitedInventor: Toshiaki Komatsu
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Patent number: 11560928Abstract: Methods and systems for a differential assembly are provided herein. In one example, a method is provided that includes operating a clutch motor coupled to a differential locking clutch to place the differential locking clutch in a locked configuration. The method further includes, after the differential locking clutch is placed in the locked configuration, reducing electric power delivered to the clutch motor at a first rate and increasing the electric power delivered to the clutch motor when it is determined that clutch disengagement is occurring based on outputs from a motor position sensor or outputs from shaft speed sensors coupled to a pair of shafts coupled to the differential locking clutch.Type: GrantFiled: April 8, 2022Date of Patent: January 24, 2023Assignee: Dana Heavy Vehicle Systems Group, LLCInventor: Perry M. Paielli
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Patent number: 11092222Abstract: A differential 1 includes a differential spider 5 and a differential housing 3. The differential spider 5 includes a bolt body 6 with four bolt sections 7a, 7b, 7c, 7d and four bevel gears 8a, 8b, 8c, 8d. The bevel gears 8a, 8b, 8c, 8d are mounted on the bolt sections 7a, 7b, 7c, 7d. The differential spider 5 is arranged in the differential housing 3. The differential housing 3 defines an axis of rotation R. The bolt body 6 includes a main differential bolt 10 including two bolt sections 7c, 7d and two differential bolts 9a, 9b, each of which includes a bolt section 7a, 7b. The main differential bolt 10 includes a locating section 11. The differential bolts 9a, 9b are accommodated in the locating section 11.Type: GrantFiled: October 4, 2017Date of Patent: August 17, 2021Assignee: ZF FRIEDRICHSHAFEN AGInventors: Martin Lang, Thomas Auer
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Patent number: 9879770Abstract: Locking differentials are described that include a first orientation and a second orientation. In the first orientation, the locking differential has a default unlocked position and must be actuated to be locked. In the second orientation, the locking differential has a default locked position and must be actuated to be unlocked. The user selects whether the locking differential is in the first orientation or the second orientation.Type: GrantFiled: April 8, 2015Date of Patent: January 30, 2018Assignee: TAP Worldwide, LLCInventors: Jason M. Miyamoto, Jacob A. Hunt
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Patent number: 9682724Abstract: A steering angle sensor, equipped for installation in a steering arrangement of a motor vehicle, is provided. The steering angle sensor comprises a rotatably mounted first gearwheel which upon actuation of the steering arrangement rotates about an axis and at least one rotatably mounted second gearwheel which is in engagement with the first gearwheel and is carried along with a rotary movement of the first gearwheel, so that with reference to a rotary movement of the second gearwheel a steering angle of the steering arrangement can be determined. The teeth of at least one of the gearwheels are tapered in axial direction along the tooth width such that a respective tooth of the one gearwheel, which is tapered along the tooth width, with wedge action can be fitted into a tooth gap of the gearwheel in engagement therewith.Type: GrantFiled: March 5, 2015Date of Patent: June 20, 2017Assignee: TAKATA AGInventors: Axel Schnieders, Markus Stollberg, Stefan Geppert, Thomas Sauerwein, Andreas Langheinrich
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Patent number: 9062750Abstract: A differential device has a clutch which is provided between at least one side gear and a differential case to limit relative rotation of the side gear and the differential case. The clutch includes one or more inner pawl discs and outer pawl discs alternately arranged in an axial direction of the side gear between an inner peripheral surface of the differential case and an outer peripheral surface of the side gear. The side gear includes a gear-side fit part extending in the axial direction to which the inner pawl disc is concave-convex fitted. The differential case includes a case-side fit parts extending in the axial direction to which the outer pawl clutch is concave-convex fitted. At least one of the gear-side fit part and the case-side fit part is formed in a spiral shape angled with respect to the axial direction.Type: GrantFiled: June 7, 2013Date of Patent: June 23, 2015Assignee: OS GIKEN CO., LTD.Inventor: Takuya Tomimatu
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Patent number: 8622868Abstract: An electronic differential lock assembly includes a shift collar that is movable in response to an electronic signal from an unlocked position where axle shaft speed differentiation under predetermined conditions is permitted to a locked position where a pair of axle shafts is fixed for rotation together. Speed differentiation is provided by a differential that includes a differential gear assembly supported within a differential case. A coil surrounds the shift collar and is selectively energized to move the shift collar from the unlocked position to the locked position. The shift collar is splined to one of the axle shafts and is selectively splined to the differential case to lock the axle shafts together. The electronic differential lock assembly includes a return spring that automatically disengages the shift collar from the differential case once the coil is no longer energized.Type: GrantFiled: January 3, 2008Date of Patent: January 7, 2014Assignee: Meritor Heavy Vehicle Systems Cameri SpAInventors: Marco Pontanari, Marco Bassi, Giovanni Bellomi, Roberto Gianone
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Patent number: 8382633Abstract: A drive axle assembly comprises a carrier member having a trunnion outwardly extending from the carrier member, an output shaft axially outwardly extending from the carrier member, a differential assembly including a differential case supported for rotation within the carrier member and a side gear rotatably mounted about the output shaft, a clutch collar non-rotatably coupled thereto and configured to selectively drivingly engage the side gear, and an annular clutch actuator for axially moving the clutch collar between a first position and a second position. The clutch collar drivingly engages the side gear in power transmitting relationship in the first position, while the clutch collar is disengaged from the side gear in the second position.Type: GrantFiled: July 9, 2012Date of Patent: February 26, 2013Assignee: Dana Automotive Systems Group, LLCInventors: Kenneth Cooper, James Krisher
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Patent number: 7988585Abstract: Disclosed is a kit which enables the rapid conversion of an open differential gear assembly in a golf cart to a limited slip differential gear assembly by replacing the side gears with side gears containing an integrated clutch surface that engage a double wound spring loaded case containing an integrated clutch surface that transmits power away from the slipping wheel and to the wheel having traction.Type: GrantFiled: August 22, 2007Date of Patent: August 2, 2011Assignee: Nivel Parts and Manufacturing Co., LLCInventor: Oran Jacob Isaac-Lowry
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Publication number: 20100022345Abstract: A drive assembly and method of braking the assembly is disclosed. The assembly has a first clutch pack that selectively brakes a driven shaft. The braking torque is transmitted to a second clutch pack in a differential where it can be distributed equally or unequally between two axle half shafts.Type: ApplicationFiled: July 24, 2008Publication date: January 28, 2010Inventors: HOWARD REASER, Michael F. Ryan, Benjamin D. Peverly
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Patent number: 7264569Abstract: A locking differential having a collar member (35) fixed to rotate with the gear case (11), but free to move axially, and cooperating with a first sidegear (19) to define interdigitated lock members (41,43) operable, when the collar member is locked (FIG. 1), to prevent rotation of the first sidegear relative to the gear case (11). A spring (61) is disposed between the collar member and the gear case, to bias the collar member toward unlocked (FIG. 3). A plurality of actuation members (47) is provided, each having a first end (49) in engagement with the collar member, and a second end (51) in engagement with a ramp plate (53). When the actuating means is in the actuated condition, the ramp plate rotates relative to the gear case, and the actuation members ramp-up on the ramp plate and move the collar member from unlocked to locked.Type: GrantFiled: January 14, 2005Date of Patent: September 4, 2007Assignee: Eaton CorporationInventor: Matthew G. Fox
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Patent number: 7048668Abstract: A differential with an improved locking mechanism is provided. The differential includes first and second clutch members in the form of a differential case having a first set of teeth and a an axle shaft mounted clutch collar having a second set of teeth. A yoke urges the clutch into an out of engagement and is supported on a pivot shaft. The yoke is selectively urged in one direction by an actuator acting on a lever on the pivot shaft. The lever is coupled to the yoke by a spring. The yoke is urged in an opposite direction by one or more return springs mounted on the same pivot shaft. The compact nature of the locking mechanism and the balance of forces provided by the springs and actuator provide an inexpensive and reliable locking mechanism.Type: GrantFiled: November 16, 2004Date of Patent: May 23, 2006Assignee: Dana CorporationInventors: Charles R. Busch, Howard Reaser
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Patent number: 6835155Abstract: A differential with an improved locking mechanism is provided. The differential includes first and second clutch members in the form of a differential case having a first set of teeth and a an axle shaft mounted clutch collar having a second set of teeth. A yoke urges the clutch into an out of engagement and is supported on a pivot shaft. The yoke is selectively urged in one direction by an actuator acting on a lever on the pivot shaft. The lever is coupled to the yoke by a spring. The yoke is urged in an opposite direction by one or more return springs mounted on the same pivot shaft. The compact nature of the locking mechanism and the balance of forces provided by the springs and actuator provide an inexpensive and reliable locking mechanism.Type: GrantFiled: December 11, 2002Date of Patent: December 28, 2004Assignee: Dana CorporationInventors: Charles R. Busch, Howard Reaser
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Patent number: 6524211Abstract: A differential gear that can switch from differential movement state to limited differential movement has: a pair of pressure rings 12 in a differential case 11 able to move in the direction of the axles but unable to rotate relatively; clutches 16 on opposite sides of the pressure rings 12 that limit differential movement between the left and right axles 1 by limiting the relative rotation of the differential case 11 and side gears 15; the pressure rings 12 are urged so as to decrease the clearance 17 between the pressure rings 12 but the clearance is increased by relative rotation torque between the pinion shaft 13 and differential case 11 in a differential state.Type: GrantFiled: April 4, 2001Date of Patent: February 25, 2003Assignee: OS Giken Co., Ltd.Inventor: Masaharu Okazaki
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Patent number: 6083134Abstract: A locking differential gear mechanism of the type which can operate in either a manual mode or an automatic mode. The mechanism includes a gear case (11), and differential gearing including a side gear (23). The side gear (23) includes a flange portion (43) having a set of gear teeth (45), and adjacent thereto is a locking member (47), also having a set of gear teeth (49), disposed to engage the gear teeth on the flange portion. A ball ramp actuator is disposed adjacent the locking member (47), which is preferably integral with an inner actuating plate (57). There is an outer actuating plate (59), preferably disposed outside the gear case (11), and a set of cam balls (73) operable with the actuating plates (57,59) to cause ramp-up, and engagement of the gear teeth (45,49). An electromagnetic coil assembly (75) is disposed adjacent the ball ramp actuator, and is operable to retard rotation of the outer actuating plate (59), and initiate ramp-up, in response to an electrical input signal.Type: GrantFiled: February 18, 1999Date of Patent: July 4, 2000Assignee: Eaton CorporationInventor: David P. Godlew
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Patent number: 5759129Abstract: A locking differential is provided for selectably locking a first axle to a second axle. The locking differential utilizes a dog clutch assembly characterized by two interlocking clutch members positioned between the differential side gears on opposing sides of the differential pinion shaft. The interlocking clutch members have face splines thereon for engaging corresponding face splines formed on the side gears. An actuating mechanism can be selectably activated to force the two interlocking members into engagement with the side gears.Type: GrantFiled: November 22, 1996Date of Patent: June 2, 1998Assignee: Vehicle Technologies, Inc.Inventors: John H. Zentmyer, Mark V. Tyson
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Patent number: 5741199Abstract: A limited slip differential having a housing with a recess provided in a radial surface of the housing adjacent a clutch pack disposed between the housing and side gear of the differential. A biasing member is provided in the recess to induce frictional engagement of the clutch.Type: GrantFiled: February 6, 1996Date of Patent: April 21, 1998Assignee: Ford Global Technologies, Inc.Inventors: John H. Tanser, George Korol, John P. Walsh
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Patent number: 5342255Abstract: A drive axle differential has the shift fork for the differential locking curvic clutch collar slidably received over a push-rod and registered against a flange on the push-rod. The push-rod has one end slidably received in a bore in the differential carrier and the other end threadedly engaging an air pressure power piston. A slot is provided in the threaded end of the push-rod for an adjustment tool and a locking screw is threaded against the push-rod after adjustment. The piston cover containing the air pressure control signal port then attached to the differential carrier.Type: GrantFiled: November 16, 1992Date of Patent: August 30, 1994Assignee: Eaton CorporationInventors: Steven G. Slesinski, Bruce A. Muselin
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Patent number: 5312307Abstract: A system for selective direct connection of a shaft to a differential casing includes a frictional coupling that is engaged prior to direct connection of the shaft to the casing. The frictional coupling ensures that the shaft is rotating at a speed which approximates the speed of the casing prior to direct connection. The frictional coupling thus reduces any jarring from the direct connection of the shaft to the casing, thereby reducing the stress on the system.Type: GrantFiled: December 30, 1992Date of Patent: May 17, 1994Assignee: Dana CorporationInventor: Howard W. Reaser
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Patent number: 5273499Abstract: In a clutch (6) for locking a differential gear for a vehicle, a movable half (60) of the clutch (6) is pushed indirectly via a sliding sleeve (70) and intermediate members (77) in an engaging direction. Then the sliding sleeve (70), with a locking surface (74), retains the intermediate members (77) firmly in a locking position between a bearing surface (64) of the movable half (60) and an axially stationary retaining surface (4). Flanks (52, 62) of clutch teeth (51, 61) of an axially stationary half (50) and of the movable half (60) form in the axle direction a deflection angle (55). The bearing surface (64) and the retaining surface (4) form a wedge angle (65). The locking surface (74) of the sliding sleeve (70) is inclined in an axial direction forming a small releasing angle (75). To open the clutch (6), the sliding sleeve (70) is pulled away. A torque produces through the deflection angle (55) an axial deflection force which then disengages the clutch (6).Type: GrantFiled: December 19, 1991Date of Patent: December 28, 1993Assignee: Zahnradfabrik Friedrichshafen AGInventors: Reinhard Friedl, Harald Wendl, Max Schuster
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Patent number: 5087228Abstract: A device to oppose a difference in relative rotational velocity between two rotatable shafts includes a set of primary braking elements arranged to rotate with one of the shafts and a set of secondary braking elements arranged to rotate with the other shaft, whereby both sets of braking elements are moved into engagement with one another from a free running position in order to oppose the difference in rotational velocity between the two shafts. One of the shafts carries a rotatable unit having a circular surface which is slightly displaced from a 90 degree angle from the drive shafts. This unit is connected for rotation with one set of the braking elements and is movable sideways relative to the other set of braking elements connected to the other shaft.Type: GrantFiled: December 6, 1989Date of Patent: February 11, 1992Inventor: Sigvard Johansson
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Patent number: 4955853Abstract: A differential gear unit for the drive axles of motor vehicles has a positive differential lock comprising a jaw clutch plate which is connected non-rotatably but movable axially with the differential case and which works in conjunction with a jaw clutch counterplate which is mounted non-rotatably and axially immobile on a differential gear drive shaft. The jaw clutch plate also serves as an armature for an electromagnet shaped as a ring magnet, which can be switched on and off manually. The jaw clutch plate is released from the jaw clutch counterplate by the preloaded spring means when the ring magnet is switched off. The electric circuit for controlling the ring magnet includes an electronic control unit developed as a velocity sensor which allows switching on of the ring magnet only below a predetermined velocity limit of the vehicle. Above this velocity limit the ring magnet switches off automatically.Type: GrantFiled: March 9, 1989Date of Patent: September 11, 1990Assignee: General Motors CorporationInventor: Paul Bausch
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Patent number: 4939953Abstract: A limited slip differential includes four pinions formed of straight bevel gears and a pair of side gears formed of straight bevel gears. A pressure angle of a first surface of each of a plurality of teeth provided on each pinion is formed larger than that of a second surface thereof and pressure angles of third and fourth surfaces of each of a plurality of teeth provided on each side gear are respectively equal to the pressure angels of the first and second surfaces.Type: GrantFiled: December 8, 1988Date of Patent: July 10, 1990Assignee: Toyota Jidosha Kabushiki KaishaInventor: Yasuyoshi Yasui