Torque Transmitted Via Plural Circumferentially Spaced Friction Elements Patents (Class 464/41)
  • Patent number: 9376139
    Abstract: The invention relates to a ball screw (20) comprising a ball nut (21), a roller bearing (22) and a belt pulley (23) arranged on the roller bearing (22). The ball nut (21) is arranged in the roller bearing (22) such that there is no reduction in tension between that of the belt pulley (23) and an assisting engine arranged to the side of the ball screw (20).
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: June 28, 2016
    Assignee: ThyssenKrupp Presta AG
    Inventor: Gergely Laszlo
  • Patent number: 9222521
    Abstract: A torque limiting tolerance ring that is configured to be installed between an inner component and an outer component is disclosed. The torque limiting tolerance ring can include a generally cylindrical body that can have a sidewall. The sidewall can include an unformed section and a plurality of projections can extend from the unformed section of the sidewall. The projections can be configured to engage the inner component or the outer component. During use, the torque limiting tolerance ring can move from an engaged configuration, in which the inner component is statically coupled to the outer component, to a disengaged configuration, in which the inner component is disengaged from the outer component.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: December 29, 2015
    Inventors: Benjamin Nias, Andrew Robert Slayne, James Pennsiriwongse, Paul Haines, Llewelyn Pickering, Stuart Kelly, Simon Alan Hughes
  • Patent number: 8777760
    Abstract: The device for torque transmission between a drive pulley (1) and a shaft (2) comprises a coupling flange (4) rotationally driven by the pulley and a hub fitted at the shaft end and rotationally joined to the shaft, with torque limitation means fitted between the coupling flange (4) and the hub (3), characterized in that the torque limitation means comprise a friction ring (28) comprising a plurality of projecting elastic portions in friction contact with a surface of the coupling flange (4) and/or of the hub (3).
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: July 15, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Laurent Varnoux, Romuald Lescorail
  • Publication number: 20140187336
    Abstract: A torque limiting assembly is disclosed and can include a generally cylindrical bearing and a tolerance ring disposed around the generally cylindrical bearing. The torque limiting assembly is configured to be installed between and rotatably couple an inner and an outer component. The torque limiting assembly is configured to rotate with respect to at least one of the inner and outer components when a threshold torque, T, is exceeded.
    Type: Application
    Filed: December 18, 2013
    Publication date: July 3, 2014
    Applicant: Saint-Gobain Performance Plastics Corporation
    Inventor: Timothy J. Hagan
  • Patent number: 8313384
    Abstract: A transmission device includes a holder, a pivot shaft, and an elastic member. The holder defines a receiving hole. The pivot shaft is received in the receiving hole. The elastic member is received in the receiving hole, fixed to the holder, and tightly enfolds the pivot shaft. When torques applied to the holder or the pivot shaft are larger than a predetermined value, the elastic member is deformed such that the pivot shaft rotates relative to the holder.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: November 20, 2012
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Gai Precision Industry Co., Ltd.
    Inventors: Song-Ling Yang, Jin-Shi Lai
  • Patent number: 8062136
    Abstract: An agricultural machine, comprises a frame, two or more processing members, which are movably attached to the frame, and a drive device which is configured to drive the processing members. The drive device comprises a main drive shaft, two drive sections connected to the main drive shaft, which drive sections are each configured to drive one or more of the two or more processing members, wherein each drive section comprises a drive shaft. The drive device further comprises a protective device which enables a certain angular rotation between the two drive shafts in the case of an overload of one of the two drive shafts, and a coupling brake device which is configured to effect, at the angular rotation between the two drive shafts, a coupling between the other drive shaft and a part of the agricultural machine that is not co-rotatable with the two drive shafts.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: November 22, 2011
    Assignee: Lely Patent N.V.
    Inventor: Alfonsus Jacobus Van Den Engel
  • Publication number: 20110269554
    Abstract: A power transmission device which transmits power between a first member and a second member, the first member has a hollow portion, the first member and the second member are fitted to each other by interference fitting by setting the external diameter of the second member so as to have a slightly larger size than the internal diameter of the hollow portion of the first member, and the surface of at least one of an inner periphery of the hollow portion of the first member and an outer periphery of the second member is subjected to a surface treatment in which slipping occurs when an excessive torque exceeding a predetermined value is applied, and the slipping stops and the original torque transmission to be performed in the power transmission device is performed again between the first member and the second member when the excessive torque is eliminated.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 3, 2011
    Inventors: Kiyoji MINEGISHI, Yuji YANO, You TSURUMI, Shun ABE
  • Publication number: 20110150673
    Abstract: The device for torque transmission between a drive pulley (1) and a shaft (2) comprises a coupling flange (4) rotationally driven by the pulley and a hub fitted at the shaft end and rotationally joined to the shaft, with torque limitation means fitted between the coupling flange (4) and the hub (3), characterized in that the torque limitation means comprise a friction ring (28) comprising a plurality of projecting elastic portions in friction contact with a surface of the coupling flange (4) and/or of the hub (3).
    Type: Application
    Filed: June 5, 2009
    Publication date: June 23, 2011
    Inventors: Laurent Varnoux, Romuald Lescorail
  • Publication number: 20110042160
    Abstract: An off-road vehicle is disclosed which comprises a driveline assembly unit operative Iy connecting the propeller shaft to the front or rear wheel assemblies. The driveline assembly unit includes a main housing, a slip clutch torque limiting mechanism, and a wet brake clutch assembly. The slip clutch torque limiting mechanism and the wet brake clutch assembly being housed within the main housing and are coaxial with the propeller shaft of the off-road vehicle. A driveline unit is also disclosed that combines torque limiting and brake functions.
    Type: Application
    Filed: January 31, 2008
    Publication date: February 24, 2011
    Inventor: Ronald Schapf
  • Patent number: 7846029
    Abstract: A torque limiter may include a first member provided with a circumferential face, a second member provided with a base plate part and a cylindrical drum part which is extended from the base plate part so as to surround the circumferential face of the first member, and an urging member for urging the cylindrical drum part of the second member to the circumferential face of the first member. The cylindrical drum part is formed with a plurality of cutout parts to be divided into a plurality of elastic plate parts. The cutout part is extended from a tip end of the cylindrical drum part to a middle position in a radial direction of the base plate part and the elastic plate part is formed of the cylindrical drum part and the base plate part.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: December 7, 2010
    Assignee: Nidec Sankyo Corporation
    Inventors: Takuya Higashitani, Hideaki Ito, Kazunori Nishikawa
  • Publication number: 20100285888
    Abstract: An impeller mounting apparatus and method have an elongated cylindrical shaft, a hub having a central aperture therethrough larger than the outer diameter of the shaft, with at least one first channel disposed on an inner circumference of the hub, having an end opening with a first diameter larger than the shaft, and at least one first elastomeric ring having a central circumference less than the outer circumference of the shaft, and adapted to fit over the shaft and inside the channel, thereby becoming outwardly expanded into the channel, the elastomeric ring further having a first ear that projects along the shaft adjacent the end opening, wherein the first ear is dimensioned so that upon expansion the ear does not completely fill the end opening.
    Type: Application
    Filed: May 5, 2009
    Publication date: November 11, 2010
    Applicant: SPX Corporation
    Inventors: Daniel Phillip Newton LEE, Matthew J. Lunt
  • Patent number: 7801657
    Abstract: A control system for a vehicle having first and second wheels is provided that includes a differential apparatus adapted to distribute torque between the first and second wheels and a traction controller for controlling operation of the differential apparatus from vehicle launch up to a predetermined vehicle speed. The traction controller is configured to engage the differential apparatus in a first operating state according to at least one vehicle operating parameter indicative of a low traction operating condition and to further control engagement of the differential apparatus in a second vehicle operating state during the low traction operating condition according to a difference between an actual vehicle yaw rate and a predetermined target vehicle yaw rate. The control system also includes a stability controller for controlling engagement of the differential apparatus at or above the predetermined vehicle speed.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: September 21, 2010
    Assignee: Eaton Corporation
    Inventors: Damrongrit Piyabongkarn, Jae Y. Lew, John A. Grogg, Robert J. Kyle
  • Publication number: 20100184519
    Abstract: A torque limiter includes a shaft member 1, a cylinder member 2, and a traction oil. The shaft member 1 has an outer circumferential surface 20, and the cylinder member 2 has an inner circumferential surface 21 which is to be frictionally coupled to the outer circumferential surface 20 of the shaft member 1 during torque transmission. The traction oil is interposed between the outer circumferential surface 20 of the shaft member 1 and the inner circumferential surface 21 of the cylinder member 2.
    Type: Application
    Filed: March 29, 2007
    Publication date: July 22, 2010
    Inventors: Kazushige Ootsuka, Akihide Nagayama
  • Patent number: 7533842
    Abstract: A clutch 100 of the present webbing retractor has a gear wheel 116 and spring claws 182, and has peripheral direction load receiving portions 120 at the gear wheel 116, and load from the spring claws 182 is applied along a peripheral direction via the peripheral direction load receiving portions 120. Therefore, compactness and weight reduction of the clutch 100 can be aimed for. Further, the clutch 100 has a ring 176, and the ring 176 integrally has a cover portion 178 holding respective clutch structural members at predetermined assembly positions, and the spring claws 182, and is held integrally with a rotor 124 by elastic forces of the spring claws 182. In this way, the respective clutch structural members can be temporarily held (sub-assembled) integrally.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: May 19, 2009
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Takuhiro Saito, Katsuki Asagiri, Shinji Mori, Tomonori Kimura
  • Patent number: 7434490
    Abstract: In a turning drive apparatus (10) for turning a movable portion (3) of a model (1) by transmitting power from a drive source to the movable portion (3) through a gear train (11), a pair of gears (16, 17) included in the gear train (11) are coupled concentrically with each other through a common slip plate (18). A friction transmitting portion (30) is arranged by combining at least any one (17) of the gears with the slip plate (18) so that it makes a slip motion to the slip plate (18) in a circumferential direction.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: October 14, 2008
    Assignee: Konami Corporation
    Inventor: Ryoji Hayashi
  • Patent number: 7367891
    Abstract: A torque limiting device includes a base configured to reside in a fixed position relative to a drive unit, an input shaft assembly configured to receive a torque load from the drive unit, and an output shaft assembly which is capable of rotating about an axis. The torque limiting device further includes detent members disposed adjacent to the input shaft assembly and the output shaft assembly. The detent members are configured to transition the torque limiting device between (i) a drive state in which the input shaft assembly rotates the output shaft assembly about the axis and (ii) a tripped state in which the input shaft assembly does not rotate the output shaft assembly about the axis depending on forces provided to the detent members, by the input shaft assembly, in respective radial directions away from the axis and toward the base.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: May 6, 2008
    Assignee: HR Textron, Inc.
    Inventor: Kwan-Ho Bae
  • Patent number: 7121948
    Abstract: A sliding clutch for torsion-limiting force transmission between a reel and a rotating part includes two bearing members disposed concentrically within one another. One of the bearing elements is formed by a circular bearing sleeve which is radially resiliently deformable transverse to its rotational axis. The bearing sleeve and the opposing bearing member abut each other in the region of a circular joint and the force transmission is effected by frictional slaving in the region of the joint. With a view to improving the frictional slaving, a tensioning element is provided on the side of the bearing sleeve opposite the side adjacent the bearing member such that the tensioning element presses against the bearing sleeve to bias the bearing sleeve against the opposing bearing member.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: October 17, 2006
    Assignee: Societe BIC
    Inventors: Winfried Huthmacher, Roland Schneider
  • Patent number: 6910969
    Abstract: A power transmission apparatus includes a pulley connected to a driving source and receiving a rotational force, at least one damper installed on the pulley, and a cover plate including a hub connecting the pulley and a compressor, a fixed plate coupled to an upper surface of the hub, and a plurality of deformation members independently installed on an outer circumferential surface of the fixed plate, wherein, when an overload is applied to the compressor, the deformation members are deformed and a coupling relationship with the damper is released so that power transmission from the driving source is cut off.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: June 28, 2005
    Assignee: Halla Climate Control Corporation
    Inventor: Eun Gi Son
  • Patent number: 6886434
    Abstract: A wrench includes a drive member for driving a fastener, a retainer securely engaged with the drive member to move therewith, and a casing having a compartment for accommodating the retainer. The casing includes a retaining section defining a retaining space for retaining the retainer in place. When a rotational force applied to the casing is smaller than an engaging force between the retaining section of the casing and a retaining device that is attached between the retaining section and the retainer, the retainer and the rod are turned to thereby turn the fastener. When a rotational force applied to the casing is greater than the engaging force, the casing slides while the retainer and the rod are not turned. The drive member is releasably engaged with the retainer, allowing the wrench to be used with various types of drive members for driving various types of fasteners.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: May 3, 2005
    Inventor: Bobby Hu
  • Publication number: 20040127294
    Abstract: A power transmission includes a first rotating member having one or more first concave portions formed on an inner circumferential surface of the first rotating member. The power transmission also includes a second rotating member having one or more second concave portions formed on an outer circumferential surface of the second rotating member. Moreover, the power transmission includes a holding member positioned within the second concave portion, and a connecting member slidably held by the holding member. Specifically, when an amount of torque transmitted to the first rotating member is less than or equal to a predetermined amount of torque a particular portion of the connecting member is in contact with a wall of the first concave portion to prevent a rotation of the first rotating member with respect to the second rotating member.
    Type: Application
    Filed: December 16, 2003
    Publication date: July 1, 2004
    Inventors: Takahiro Ohta, Masazumi Ishikawa, Hideyuki Gonda
  • Patent number: 6470993
    Abstract: An electronic power steering apparatus according to the present invention uses hypoid gears having a larger gear on a steering assisting motor side and a smaller gear on a pinion shaft side as a transmission device for transmitting a rotational force of the motor to the pinion shaft or a column shaft, thereby reducing a shaft-to-shaft distance required between the motor and the pinion shaft. Further, rack teeth, which have a pressure angle that reduces toward both of the ends of a moving stroke of a rack shaft, are formed on the rack shaft that engages the pinion gear so that an insufficient steering assisting force is supplemented at the stroke ends, that is, at a large steering range; thus, it is possible to miniaturize the motor. Therefore, it becomes possible to reduce a space occupied by the motor on the periphery of the column shaft or the pinion shaft, and consequently to allow easy installation inside the automobile room or the engine room.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: October 29, 2002
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Akinobu Matsuda, Masayuki Watanabe, Terukazu Nakajima, Kaname Joshita
  • Patent number: 6378678
    Abstract: A twin mass flywheel assembly in the form of a twin mass flywheel (12), a clutch cover (11) attached to the flywheel, a clutch driven plate (19), a clutch pressure plate (14), and spring means (18) supported from the cover to clamp the driven plate between the flywheel and pressure plate to transmit torque through the assembly. The driven plate (19) includes a central hub portion (24) and an outer friction portion (25) supported from the hub portion via a slipping clutch which may be in the form of a tolerance ring (32) which allows relative rotation between these portions at torque levels above a predetermined torque thus protecting the assembly and associated driveline from damage due to high level but short duration torsional loading.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: April 30, 2002
    Assignee: Automotive Products UK, LTD
    Inventors: Bradley Armitage, Adam Johnson Lambert, Anthony John Curtis
  • Patent number: 6378679
    Abstract: The invention concerns a clutch (10), comprising a clutch disk (22) connected with a first shaft (A) and a brake device (17) connected with a second shaft (B). By means of the brake cylinder (19) of the brake device (17), the brake pad (18) can be coupled into engagement with the clutch disk (22), in which case a movement of rotation between the shafts (A and B) is prevented. In the solution of equipment, between the shaft (A) and the shaft (B), there is a support bearing (21), which supports the movement of rotation between the shafts (A and B) when the clutch is supposed to slip. According to the invention, in the pressure line (59), there is a holding pressure maintained by means of accumulators (100), which holding pressure determines the torque at which the clutch slips.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: April 30, 2002
    Assignee: Suokone Oy
    Inventors: Jouni Karjalainen, Eero Juppi
  • Patent number: 6309303
    Abstract: A clutch device is adapted to fit onto a drive shaft of a standard water pressure cavity machine. The clutch device has a clutch body with a shaft receiving aperture at one end of the clutch body and a spring assembly at the other end of the clutch body. Reciprocating jaws are held in position by the spring assembly.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: October 30, 2001
    Inventor: Glen A. Vodicka
  • Patent number: 6109898
    Abstract: A scroll compressor having a compressor housing and an orbiting scroll member is provided with an annular plate between the housing and orbiting scroll member. The plate having an axial aperture provided therethrough, the plate abutting one of said housing and said orbiting scroll member. A pin projects through the aperture of the plate and is engaged with the member abutting the plate. A projection is provided on the pin for preventing axial displacement of said pin relative to said plate axially away from the abutting member.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: August 29, 2000
    Assignee: Ford Global Technologies, Inc.
    Inventor: Eric William Scarlett
  • Patent number: 5791579
    Abstract: An overload prevention clutch assembly features input and output members connected by a coupling member, which is resiliently deformable under the control of threaded fasteners to vary the torque which may be transmitted between the input and output members across the coupling member. The fasteners serve to mount the coupling member on the output member, whereupon the coupling and output members cooperate to mount the input member in assembled relationship therewith.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: August 11, 1998
    Assignee: Columbus McKinnon Corporation
    Inventors: Julian J. Raphael, Neil S. Pennington
  • Patent number: 5746298
    Abstract: A miniature, adjustable torque limiting screwdriver includes an elongated hollow handle internally threaded at one end. A torque-limiting mechanism is disposed within the handle and includes a rigid shaft having a hex inner end and a plurality of flexible resilient fingers engageable with the hex. An adjusting collar encircles and engages the fingers and is threadedly engaged with the handle for axial movement to adjust the force with which the fingers grip the hex end of the shaft. The outer end of the shaft sockets a driver shank. When the handle is rotated it rotates the shank up to a predetermined torque, at which point the flexible and resilient torque members slip with respect to the drive surface portions of the shaft to prevent further torque application.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: May 5, 1998
    Assignee: Snap-on Technologies, Inc.
    Inventors: Bert Krivec, Thomas B. Petruzzi, John A. Braun
  • Patent number: 5690313
    Abstract: A noiseless valve includes a leading spiral spindle (4) having a thread (8) at one end by which it is screwed into a spiral (8') of a piston holder (10). The piston holder (10) has a cylindrical shape and is placed into a valve body (1). The leading spiral spindle is secured by the key (13) in axial direction. A piston (12) is attached to an upper part (12) of the holder (10). The piston (16) has an edge rim with two teeth (18) cooperating with grooves (22) furnished on posts (21) of a rubber seal holder (19). The rubber seal holder (19) is attached to the valve body (1) at an end where the piston (16) stands out. The piston (16) is pressed against a rubber seal (23) placed in the rubber seal holder when the valve is closed. Two spiral teeth (6', 10'), disposed diametrically opposed and mutually shifted by, are provided on a bottom head surface of the piston holder (10) and on a rim (6) of the leading spiral spindle (4).
    Type: Grant
    Filed: June 28, 1995
    Date of Patent: November 25, 1997
    Inventors: Predrag Pesovic, Namanja Pesovic, Vojin Pesovic
  • Patent number: 5068673
    Abstract: A clutch for telescopic antenna including a disk shape clutch element and a shallow, cylindrical clutch element facing each other. The cylindrical clutch element is provide with a recess on its inner wall, and the disk shape clutch element is provided with a pair of sliding contacts which are urged in the radial directions and can come into contact with the inner wall surface of the cylindrical clutch element. An engagement ball provided in one of the sliding contacts can engage with the recess of the second element, securing the coupling of the two clutch elements.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: November 26, 1991
    Assignee: Harada Kogyo Kabushiki Kaisha
    Inventor: Misao Kimura
  • Patent number: 5060909
    Abstract: The invention relates to a shut-off valve comprising a valve housing (12), a valve piston with valve cone (22) arranged up-stream of an associated valve seat (20), and a piston holder (16) axially movable within the valve housing (14) by means of a spindle (58) and accommodating said valve piston. To prevent overtightening of the valve piston, the piston holder (16) is connected to the valve housing (14) in the manner of a slip clutch. In addition, the outlet port (146) of the shut-off valve can be closed by a non-return valve.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: October 29, 1991
    Inventor: Miodrag Stanic
  • Patent number: 4429291
    Abstract: The present television fine tuning is constructed so that an initial rotation establishes the fine tuning state and that a continued rotation of the fine tuning shaft performs the fine tuning. For this purpose the present tuner comprises a fine tuning driving member, a rotation transmitting idler member, a plate spring for supporting the idler member and a fine tuning adjustment element. The driving member includes a fine tuning shaft, a slide gear and a slip clutch concentrically mounted on the front of the chassis around a channel selector shaft supported by the chassis. The slip clutch has a plastic collar loosely mounted around the selector shaft, and a metallic sheet member located in a gap formed between the inner surface of the plastic collar and the outer surface of the selector shaft.
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: January 31, 1984
    Assignee: NEC Kansai, Ltd.
    Inventor: Kaoru Tenjin
  • Patent number: 4416643
    Abstract: A planar drive mechanism comprises a sprocket wheel for a planar chain and a drive shaft for rotating the sprocket wheel. The sprocket wheel has a secondary rim portion for driving the chain and the drive shaft has a primary rim. A clutch mechanism is connected between the primary and secondary rims which comprises a circular groove of trapazoidal cross section formed in the secondary rim which receives a plurality of friction segments connected to the primary rim. Each friction segment is carried by a coupling bolt which is slidably mounted in radially extending bores in the primary rim aligned with the circular groove. The coupling bolts and friction heads while functioning as a unit can be made of two separate materials, the coupling bolt made of material to give it strength and the friction segments made of material to give it wear resistance.
    Type: Grant
    Filed: February 5, 1981
    Date of Patent: November 22, 1983
    Assignee: Halbach & Braun
    Inventors: Ernst Braun, Gert Braun
  • Patent number: 4406232
    Abstract: A clutch mechanism for use in an automatic steering system is disclosed. The clutch mechanism allows an operator to manually override the automatic steering mechanism by use of the conventional steering gear. It also prevents damage to the automatic steering mechanism, which might be produced by large displacements in a steering gear feedback mechanism. Both angular and linear displacement dissipation devices are described.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: September 27, 1983
    Assignee: Pathfinder Systems, Inc.
    Inventors: Mark E. Fasse, Herbert C. Glesmann
  • Patent number: 4401426
    Abstract: A torque limiting clutch having at least two friction surfaces placed under pressure by pre-compressed helical springs employed for eliminating adjustment and compensating for wear of said clutch during use.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: August 30, 1983
    Assignee: Power Transmssion Technology, Inc.
    Inventor: David C. Heidenreich
  • Patent number: 4389203
    Abstract: An overload clutch for a winch or the like offering a rolling or compression resistance between the rope drum and the rope drum power axle.The rope drum is connected at one flange to the power axle via an ancillary compensation member in the form of an inwardly running drum body or shaft. Placed between the rope drum and the ancillary compensation member are a plurality of rollers, made of an elastic material, and assembled together in the form of a roller cage. The rollers, which are oval in cross-section, are bonded to roller axles and are separated from each other by spacer rods. The interaction of the rollers with the rope drum and the ancillary compensation member is responsible for a non-positive driving connection between the rope drum and the power axle.
    Type: Grant
    Filed: November 3, 1980
    Date of Patent: June 21, 1983
    Assignee: Industrietechnik Kalenborn GmbH
    Inventor: Wilhelm Duntzen
  • Patent number: 4338798
    Abstract: Apparatus for limiting the amount of torque to a driven shaft having a tool for applying power to a workpiece is continuously adjustable throughout a predetermined range. A housing defines a cylindrical chamber open at one end having an adjustable plate disposed therein. First and second shafts enter the housing through opposite ends and have first and second disks attached thereto within the housing. Disks are frictionally coupled by a force generated by a spring disposed about the first shaft between the adjustable plate and the first disk. When the preselected limit of torque is exceeded the disks slip with respect to one another thus, limiting the amount of torque delivered by the apparatus. Adjustment of the plate selectively increases or decreases the compression of the spring and thus, alters the maximal amount of torque that can be delivered. An alternative embodiment is disclosed for incorporating the apparatus within the housing of a power tool such as a drill motor.
    Type: Grant
    Filed: June 5, 1980
    Date of Patent: July 13, 1982
    Inventor: Russell A. Gilman
  • Patent number: 4338064
    Abstract: An improved clutch assembly for use between a propeller and a propeller drive shaft. A bushing preferably in the form of an internally splined tube is adapted to fit over the splined output end of a drive shaft. One or more longitudinally raised ridges extend along a portion of the tube exterior. At least one radial flange extends at least partially around the tube exterior, spaced from one end of the tube. At least one elastomeric cushion, having the configuration of a radial tube section, engages the exterior wall of the tube between ridges. The diameter of this assembly is such as to allow insertion into a propeller bore with a tight friction fit between the cushion and the interior wall of the bore.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: July 6, 1982
    Inventor: Fred Carmel
  • Patent number: 4330029
    Abstract: Disclosed is a novel mounting structure for a rotatable heat exchanger, sometimes known as a heat recovery wheel. The mounting structure includes a hub portion on at least one side of the wheel and axially aligned therewith with at least three radially movable shoes situated within the bore of the wheel and coupled to the hub portion. A torsion bar is connected to the hub which applies equal radial forces to each of the shoes whereby the shoes are biased against the wheel at the periphery of the bore and equally displaced from the axis of the wheel. The aforementioned arrangement provides a mounting which is self centering and yet which permits differential radial expansion of a metal hub with respect to a ceramic wheel.
    Type: Grant
    Filed: November 10, 1980
    Date of Patent: May 18, 1982
    Assignee: Corning Glass Works
    Inventors: Burton A. Noll, Richard P. Suhey