Threaded Actuator Patents (Class 403/370)
  • Patent number: 5474403
    Abstract: A mounting device for anchoring a machine element having a tapered bore coaxially upon a rotary shaft. The device fits between the interior tapered bore of the machine element and the cylindrical surface of the shaft and is effective to position the element at any desired position longitudinally of the shaft and at any angular position circumferentially of the shaft. The device has inner and outer segmented sleeves, the mating surfaces of which are similarly tapered so that relative axial displacement of the sleeves effects expansion and contraction of the interior bore and external surface of the combined elements. Rotation of an internally threaded nut at one end of the device effects the relative axial displacement of the inner and outer sleeves to afford expansion and contraction of the outer sleeve without straining the material of the sleeve or the nut.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: December 12, 1995
    Assignee: Fenner, Inc.
    Inventor: A. Ronald Hetrich
  • Patent number: 5474387
    Abstract: A bicycle pedal crank bearing system has a hollow axle within which expandable cone shaped discs are flattened so as to expand radially outward and expand the axle into locking engagement with a thrust sleeve surrounding the axle. Since the thrust sleeve can not move axially relative to the bearing, the axle is likewise axially positioned, but is still free to rotate. The chain path is, thus, easily aligned and access to the bearings for maintenance is made easier.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: December 12, 1995
    Assignee: King Cycle Group
    Inventor: Christopher D. King
  • Patent number: 5458427
    Abstract: The present invention concerns telescopic tubular assemblies comprising a plurality of successive tubular sections sliding one inside the other between a retracted position and a deployed position. One non-limiting example of such assemblies is a ski stick.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: October 17, 1995
    Inventor: Ludger Simond
  • Patent number: 5454165
    Abstract: A lightweight renewable hand-held tool that may be easily renewed in the field including a tool head having a tapered shaft, an expandable sleeve, a hollow handle, and a movement assembly for moving the expandable sleeve back and forth along the tapered shaft in response to a rotation of the hollow handle. The expandable sleeve includes a tapered interior that slidably mates with the tapered shaft. Consequently, rotation of the hollow handle adjustably expands the expandable sleeve, forming a tight fit between the tapered shaft and the interior of the hollow handle. The preferred movement assembly is a threaded nut that engages a threaded stud located at a lower end of the tapered shaft. An antirotation fastener is preferably used to prevent the hollow handle from thereafter rotating during use of the tool.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: October 3, 1995
    Assignee: Harrow Products, Inc.
    Inventors: Alex Thompson, William E. Gagner
  • Patent number: 5442973
    Abstract: A locking mechanism comprises a bicycle fork tube which is rotatably received in a bicycle head tube. This fork tube has a plurality of elongate slots at its tubular wall below the top end portion. A stem member has a collar thereof which is removably enveloped around the top end portion of the bicycle fork tube. A tubular housing containing an actuating block and wedge members is removably received by the fork tube for retaining the stem member to the fork tube thereof.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: August 22, 1995
    Assignee: Hsin Lung Accessories Co., Ltd.
    Inventor: Jim Liao
  • Patent number: 5425225
    Abstract: A telescopic extensible rod, suited to be used as extension in agricultural pneumatic tools for picking fruit from trees or of cutting off branches of trees, is formed by two coaxial tubular elements, i.e. a first tubular element and a second tubular element that slides inside the first tubular element. A pneumatic actuator can be connected to the free end of the second tubular element. A coupling is mounted between the tubular elements to removably lock their reciprocal sliding. Two coaxial pipes, a first pipe and a second pipe, are located inside the tubular elements, the second pipe being designed to slide inside the first one while keeping the seal because of the presence of a sleeve mounted between the pipes and inside the first pipe. The free ends of the pipes are in fluid-dynamic connection respectively with a compressed fluid delivery and with the pneumatic actuator.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: June 20, 1995
    Assignee: M.A.I.BO. S.r.l.
    Inventor: Drusiani Franco
  • Patent number: 5419650
    Abstract: A pipe fastening device including a split sleeve main tubular body with an upper and a lower internal tapered surface. A lower fixing member at the end of the pipe having a frusto-conically shaped body matching the lower tapered inner surface of the tubular body. An upper movable member also having a frusto-conically shaped body matching the upper inner tapered surface at the top of the tubular body. A bolt from an installation member passes through the fixing member and is fixed in the movable member so that tightening of the bolt draws the movable member toward the fixing member. The tapered surfaces cause the tubular body sleeve to expand for securing the tubular body in the pipe. The fixing member and the movable member have protuberant parts received in the groove of the split sleeve tubular body.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: May 30, 1995
    Assignee: Hoshino Gakki Co., Ltd.
    Inventor: Yoshiki Hoshino
  • Patent number: 5411232
    Abstract: A union for sensor mounting assemblies has a body with a stem extending from the body to a terminal end. The stem is received within a boom and has an inclined surface extending from the terminal end toward the body. The stem includes a cam provided with a cam surface slidably abutting the inclined surface, so that the cam slides along the inclined surface between an open position and a closed or locked position. The stem and the cam have aligned, opposing, flattened sides defining a cross section for each of the stem and the cam as a truncated circular arc section. A draw member or bolt interconnects the cam and the stem extends generally parallel to the inclined and cam surfaces. In the open position, the stem and cam of the union may be received in or withdrawn from a cavity in a support boom. In the locked position, the union is rigidly connected with the support boom.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: May 2, 1995
    Inventor: Donald L. Hufford
  • Patent number: 5407047
    Abstract: In order to secure the flywheel (5) of a motor vehicle friction clutch (3) to the output end of a crankshaft (23) of an internal combustion engine, it is proposed that the flywheel (5) is fastened to the output end of the crankshaft (23) by means of an axially detachable centric clamping arrangement (21). The flywheel (5) is hereby supported on a pipe end (37) of the crankshaft (23). Conical expansion elements (45), which may be axially displaced by means of a centric screw element (43) to generate radial clamping forces, are inserted into the centric cavity formed by the pipe end (37). The screw element (43) is structured in such a way that it may be screwed through the hub (27) of a clutch disc (9) of the friction clutch onto the crankshaft (23) by means of a screw attachment tool (51). The friction clutch (3) may thus be preassembled together with the flywheel (5) to form a structural unit before it is secured to the crankshaft (23) .
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: April 18, 1995
    Assignee: Fichtel & Sachs AG
    Inventors: Reinhold Weidinger, Reiner Weisenberger
  • Patent number: 5374136
    Abstract: The bracket (12) is bolted loosely to the attachment arm (14) of a dental chair to establish a preliminary orientation of the bracket relative to the attachment arm. The bracket is then levelled with adjustment screws (40) which bear against a surface on the attachment arm to establish a level orientation. The bolt fastening the bracket to the attachment arm is then tightened to fix the level orientation.
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: December 20, 1994
    Assignee: A-Dec. Inc.
    Inventor: Pierre LaPlante
  • Patent number: 5373636
    Abstract: Device for removing a bearing assembly from a shaft including a tapered adapter for securing a bearing assembly to a shaft that includes a radial opening therethrough extending along the length thereof and further defines a groove extending about at least a portion of the circumference of the adapter and being located proximate the large end of the adapter. The device also includes a removal ring with a holding lip for mating with the groove extending about the circumference of the tapered adapter and is provided so as to apply a separating force between the bearing assembly and the removal ring for releasing a bearing assembly from a shaft.
    Type: Grant
    Filed: October 7, 1992
    Date of Patent: December 20, 1994
    Assignee: Reliance Electric Industrial Company
    Inventor: Howard M. Martinie
  • Patent number: 5374145
    Abstract: The invention relates to devices for anchoring one part (P) relative to another (M) comprising a nut (4) and a conical ring (5), the base (1) of the part to be anchored (P) made up of first part (2) around which said nut (4) passes and a second truncated cone shaped part (3) receiving the conical ring (5), a hole (6) in the anchoring part (M) receiving the base (1) and its conical ring (5), the bottom of said hole (6) being provided with spring washers (9).
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: December 20, 1994
    Assignee: Jeumont-Schneider Industrie
    Inventors: Yves Mairesse, Yves Debleser
  • Patent number: 5370472
    Abstract: The cone-type clamping arrangement is arranged in the intermediate space between the external circumference of a shaft and the internal circumference of the bore of an external member. It comprises a double-cone member, a cone ring arranged on the first cone surface of the double-cone member, and, arranged on the second cone surface of the double-cone member, a cone member which has an axial extension with cylindrical internal circumferential surface, which extension overlaps the cylindrical external circumferential surface of the cone ring and forms an overlap. During clamping, friction only occurs on three surface pairs. During loosening, the cone ring is supported, with a radial circumferential projection, on the flank of a circumferential groove of the double-cone member.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: December 6, 1994
    Inventor: Ralph Muellenberg
  • Patent number: 5343777
    Abstract: This invention is directed to an improved eccentric crank assembly for a reciprocating piston type air compressor. The eccentric crank assembly includes an eccentric plate, a compressor shaft, and an eccentric shaft. The eccentric plate is provided with a pair of parallel overlapping openings formed therethrough. The compressor shaft includes one end provided with a flat angled surface, and the eccentric shaft includes one end provided with a corresponding flat angled surface. The angled surface ends of the shafts are disposed within the openings of the plate. When the eccentric shaft is moved away from the compressor shaft, the angled flat surfaces force the shafts radially apart and into engagement with the openings of the eccentric plate, thereby locking the shafts and the eccentric plate together.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: September 6, 1994
    Assignee: DeVilbiss Air Power Company
    Inventors: Mark W. Wood, Brian M. Steurer
  • Patent number: 5341736
    Abstract: In cooperating cylinders, in particular cylinders of a printing mechanism which are in a drive connection via gear wheels and form a feed gap, at least one of the gear wheels is formed by a toothed rim and a wheel body which are connected with one another in a positive engagement via an overload coupling.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: August 30, 1994
    Assignee: Man Roland Druckmaschinen AG
    Inventors: Manfred Makosch, Klaus T. Reichel
  • Patent number: 5331864
    Abstract: A bicycle headset includes a head tube engaged on a steerer tube, a lower bowl engaged in an upper portion of the head tube, a bearing engaged on the lower bowl, a sleeve engaged on the steerer tube, an upper bowl engaged on the bearing and engaged on the sleeve. A ring extends through the sleeve and couples the upper bowl and the steerer tube together such that the upper bowl and the sleeve and the steerer tube rotate in concert. A tapered surface is formed in the sleeve and the upper bowl so that the sleeve is forced radially inward by the upper bowl.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: July 26, 1994
    Inventor: Yi-Chen Chi
  • Patent number: 5332245
    Abstract: In bicycles that have the front fork and handle bars attached to a steering tube that rotates within a frame mounted head tube, a bearing system wherein a compression ring slides over and about the steering tube to trap the bearing against the head tube. Lock nuts surround the tapered compression ring so that when they are threaded together they squeeze the ring against the steering tube. Threads or barbs on the inside of the ring dig into the steering tube to resist movement away from the bearing and allow the ring to be moved against the bearing and establish a proper bearing end load. Further tightening of the lock nuts holds the ring permanently in place.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: July 26, 1994
    Inventor: Christopher D. King
  • Patent number: 5330284
    Abstract: A device for mounting and/or dismounting a bearing on a shaft incorporating a tapered clamping sleeve between bearing and shaft and an arrangement for mutual axial displacement of the bearing and clamping sleeve in at least one axial direction, which arrangement incorporates at least one wedge-pointed screw arranged, when being screwed in towards the shaft to cause a mutual displacement in axial direction between the clamping sleeve and the bearing by wedge action. The bearing is situated in a surrounding sleeve-shaped member significant axial space beside the bearing at least on one side. The arrangement for displacement of bearing incorporates at least one radial flange, axially affixed to the clamping sleeve. The wedge-pointed screw is arranged to be screwed in substantially radially through holes in the bearing housing, for exerting the axial wedge force between the flange and an inner race ring of the bearings.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: July 19, 1994
    Assignee: SKF Mekan AB
    Inventor: Stig Persson
  • Patent number: 5327610
    Abstract: A releasable clamp for the interior of an elongated tube, for use in telescopic tube arrangements and the like. The clamp comprises an outwardly expandable split ring having open ends and sides of cylindrical configuration, the sides of the split ring expanding outwardly to frictionally engage the interior surfaces of the tube when in expanded position, the split ring slidably movable longitudinally within the tube when the sides of the split ring are in unexpanded position. Wedges are provided, co-operating with the open ends of the split ring to bear against the ends of the split ring to force the sides of the split ring outwardly to expand it, tube engaging position. This releasable clamp may be used, for example, in an adjustable length handle for an appliance such as a floor polisher.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: July 12, 1994
    Assignee: Dustbane Products Limited/Les Produits Dustbane Limitee
    Inventor: David G. Smith
  • Patent number: 5318374
    Abstract: A composite tube structure is disclosed in which the end of the composite tube is either flared out at the end or is tapered in at the end and the flared or tapered portion is accurately formed to its final dimension so as to require no machining to size. An end assembly is applied to the end of the tube which has inner and outer portions fitting precisely into the inner and outer surfaces of the end of the tube. The inner and outer end pieces are drawn axially together to secure the tube in the end assembly between the inner and outer portions under a predetermined radial stress. The tube is secured to the end assembly without the use of pins or other fasteners which require severing the fiber strands of the tube.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: June 7, 1994
    Assignee: The Boeing Company
    Inventor: William E. Rumberger
  • Patent number: 5306096
    Abstract: A rotary assembly for attachment to a rotary shaft includes a rotary body; and a bore hole extending in the rotary body from one end thereof for coaxially receiving a rotary shaft. The bore hole has a longitudinal axis coinciding with a rotary axis of the shaft when received in the bore hole. A parting split defining a clearance extends in the rotary body from one end thereof. The parting split extends in a plane which contains the longitudinal axis. A slot extends in the rotary body from the parting split on either side of the bore hole. The slot defines a dividing plane which traverses the longitudinal axis and which divides the rotary body into first and second axially adjoining body parts. The bore hole extends consecutively in the first and second body parts, and the bore hole which extends in the first body part is circumferentially closed. Two clamping wings are defined in the second body part by the parting split, the slot and the bore hole extending in the second body part.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: April 26, 1994
    Assignee: Sig Schweizerische Industrie-Gesellschaft
    Inventors: Heinz J. Tuns, Hermann Murbach
  • Patent number: 5306272
    Abstract: A device for axially advancing a surgical instrument into the brain of a patient includes an advancer that is engageable with the gooseneck of a surgical apparatus. The is axially telescoping, and the advancer can selectively grip the surgical instrument. Accordingly, the surgical instrument can be gripped by the advancer and the advancer telescoped to advance the instrument into the brain along a predetermined path.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: April 26, 1994
    Assignee: Neuro Navigational Corporation
    Inventors: Donald Cohen, John Aoki
  • Patent number: 5302046
    Abstract: A clamping mechanism for frictionally securing together two radially adjacent concentric components of a gear drive wherein an annular clamping disc having concentric inner and outer peripheral edges and a substantially conically shaped convex portion between the edges is partially disposed in an annular recess in one of the gear drive components. Force applying means, such as tensioning bolts, cooperate with circumferentially spaced apertures in the convex portion of the clamping disc and threaded bores in the component to urge the peripheral edges of the clamping disc into frictional engagement with wall portions of the annular recess and with a concentric surface of the radially adjacent gear drive component.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: April 12, 1994
    Assignee: Man Roland Druckmashinen AG
    Inventor: Josef Mathes
  • Patent number: 5286133
    Abstract: A joint for a vehicle steering linkage comprises a housing and a ball stud. The housing has a socket which contains the ball end of the ball stud, and has a sleeve which receives the end of a tie rod. The sleeve has an external, first clamping surface which is inclined with respect to the axis of the sleeve. The joint further comprises a clamp which clamps the tie rod in the sleeve. The clamp includes a clamping member and a threaded nut. The clamping member has a second clamping surface, and is free of a thread for engaging the thread on the tie rod. The threaded nut moves the clamping member relative to the sleeve and the tie rod, and moves the second clamping surface in sliding contact with the first clamping surface.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: February 15, 1994
    Assignee: TRW Inc.
    Inventor: Ruey E. Wood
  • Patent number: 5269622
    Abstract: A taper clamping unit includes a tightening assembly having first and second taper rings, one of which is mounted on a cylindrical bushing. The cylindrical bushing has an end flange which extends opposite projecting portions of a plurality of screws which are used to connect, tighten, and untighten the first and second taper rings to each other. When the screws are loosened, the projections bear against the end flange such that the first and second taper rings are loosened from each other and when the screws are tightened, the projections bear against the first taper ring thereby tightening the first and second taper rings with respect to each other.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: December 14, 1993
    Inventor: Ralph Mullenberg
  • Patent number: 5267480
    Abstract: A telescoping steering column has a tube and a shaft. The shaft has a slide portion at one end and a midregion adjacent the slide portion. The slide portion and at least a portion of the midregion are received in sliding engagement in the tube. The tube has a crimp which is formed about a portion of the midregion and slidably engages the midregion. Rotational torque is transmitted between the shaft and the tube through the midregion and crimp. Further, the slide portion of the shaft abuts the crimp and is blocked from passing through the crimp. Finally, a slide lock is provided to fix the position of the shaft relative to the tube in a locked position and whereby the shaft slides relative to the tube in an unlocked position.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: December 7, 1993
    Assignee: Douglas Autotech Corporation
    Inventor: Joseph A. Krizan
  • Patent number: 5263802
    Abstract: A pin (101) for alignment of two elements (1, 3) each comprising at least one orifice (2, 4) to be positioned coaxially with each other, the first element (1) being stationary and the second element (3) being radially displaceable. The alignment pin comprises a cage (11) having a diameter smaller than the diameter of the orifices (2, 4) of the two elements (1, 3) and intended to be placed in these orifices (2, 4). The cage (11) comprises radial expansion blocks (13) for centering the pin (10) in the orifice (2) of the first stationary element (1) forming a reference and for displacement of the second element (3) in relation to the first element (1). The pin is used for centering a cover on a nuclear reactor vessel.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: November 23, 1993
    Assignee: Framatome
    Inventors: Philippe Fichot, Jean-Pierre Roinjard
  • Patent number: 5244133
    Abstract: A bicycle carrier for mounting to a trailer hitch on an automobile or the like, has a carrier frame for carrying one or more cycles, and a coupling assembly attached to the frame, the coupling assembly including first and second members adapted for insertion into the hitch and a screw adjustable for effecting relative displacement of the two members transversely to the hitch making a tight friction-fit of the coupling to keep the cycle carrier frame from wobbling on the hitch.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: September 14, 1993
    Assignee: Hollywood Engineering, Inc.
    Inventors: Brian Abbott, Neil Nusbaum, Henry Nusbaum
  • Patent number: 5203221
    Abstract: An apparatus is provided for use with a shaft mountable gear reduction drive in which a driven shaft is coupled with reduction gears by a hollow intermediate output shaft. The output shaft is journaled within the gearbox and has a tapered axial passage for receiving one end of the generally cylindrical driven shaft. A tapered bushing is wedged into the axial passage to interlock the output shaft and the driven shaft for synchronous rotation. A retaining nut is threaded to the outboard end of the output shaft and is rotated relative thereto to advance the nut axially along the driven shaft and forcefully lock the tapered bushing in place. In order to facilitate the driving engagement of the bushing with the output shaft and driven shaft, a nut locking apparatus is provided for preventing rotation of the retaining nut when the output shaft is rotated by the gear drive, and thereby drawing the tapered bushing along the driven shaft.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: April 20, 1993
    Assignee: The Falk Corporation
    Inventor: Michael A. Logsdon
  • Patent number: 5201242
    Abstract: A coupling for supporting an extension of a front fork in a head tube of a bicycle includes a bowl engaged in an upper portion of the head tube and includes a tapered surface. A ring element engages between the tapered surface of the upper bowl and the extension. A barrel engages on the ring element and a disc engages on the barrel. A fixed device engages in the extension with a bolt between the disc and the fixing device for pressing the barrel downward in order to press the ring element in place.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: April 13, 1993
    Inventor: Yi C. Chi
  • Patent number: 5197345
    Abstract: Speed reducer, such as a screw conveyor drive, adapted to receive a shaft within a tapered sleeve. The shaft includes a tapered portion adapted for engagement with the corresponding tapered portion of the sleeve on one side of the housing when the shaft is inserted into the bore. On the other side of the housing, a split bushing is provided for receipt within the sleeve, the split bushing including a tapered surface for mating engagement with the tapered surface on the sleeve. A retainer plate is provided that is adapted to be placed on the end of the shaft extending through the bore. The retainer plate has a center hole for receipt of a capscrew through the retainer plate and into the shaft to securely maintain the shaft in place. The retainer plate further has a plurality of holes dimensioned so that the head and shank of screws may extend therethrough and a plurality of holes dimensioned so that only the shank of the screws can extend therethrough.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: March 30, 1993
    Assignee: Reliance Electric Industrial Company
    Inventor: Max H. Rose
  • Patent number: 5190393
    Abstract: The invention concerns expandable fastenings of the kind that includes a conical shaft part (2) and a conical expandable sleeve (4) that is pressed up on the conical part (2) of the shaft (1) in order to fill out and fasten the shaft in a mounting hole. The expandable sleeve (4) is pressed against the cone by a washer (5) and by a nut (11) screwed onto a threaded end portion of the shaft. The washer (5) is on its outside provided with a thread for the threading thereon of a nut part or sealing ring (6). The expandable sleeve (4) and the threaded washer (5) are connected by hooklike flanges so that the sealing ring (6) can also be used to pull out the sleeve from the conical axle part.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: March 2, 1993
    Inventor: Roger Svensson
  • Patent number: 5188480
    Abstract: A coupling fixture provided with an outer ring and an inner ring each ring having a radially extending cut in one circumferential direction, the inner periphery of the outer ring and the outer ring of the inner periphery being tapered, a wedge-like-shaped ring nut interposed between the inner periphery and the outer periphery, and screw bolts screwably engageable with the ring nut to expand the outer ring in diameter and contract the inner ring in diameter, the ring nut being provided with a cut for making the ring nut radially displaceable.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: February 23, 1993
    Inventor: Toshikazu Okuno
  • Patent number: 5176464
    Abstract: Apparatus for mechanical coupling such as an actuator to a valve includes an elongated drive member having an axial extremity having a drive surface and an elongated driven member having an axial extremity having a drive surface. One of the drive surfaces is an internal surface which has a polygon shaped cross section and one of the drive surfaces is an external drive surface which has a polygon shaped cross section. In some embodiments first and second sleeves including a plurality of wedge surfaces having generally planar faces are inserted between the drive and driven surfaces. In other forms of the invention the internal drive surface has four wedge shaped faces and a single sleeve having wedge shaped faces is inserted between the drive and driven member. The drive and driven members are disposed with the drive surfaces disposed in nested axially overlapping relationship with the wedge shaped surfaces disposed radially intermediate the respective drive surfaces.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: January 5, 1993
    Assignee: General Signal Corporation
    Inventor: Douglas J. Tanner
  • Patent number: 5174680
    Abstract: An apparatus for fastening a wheel, having a boss hole therein, to a shaft. The fastening apparatus includes an axially slit outer ring having a cylindrical outer peripheral surface fitted into the boss hole, a tapered inner peripheral surface, a support flange formed at one end of the ring adjacent the small diameter end of the tapered surface for direct engagement with the shaft, a cylindrical inner peripheral surface formed at the large diameter end of the tapered surface, and an enlarged annular end flange formed at the other end of the ring.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: December 29, 1992
    Assignee: Tsubakimoto Chain Co.
    Inventors: Kenichiro Nakamura, Toyoakira Fukui
  • Patent number: 5154595
    Abstract: A fixing mechanism for a timing gear system used in a compressor has a pair of timing gears engaging each other and a pair of shafts mounting the pair of the timing gears. At least one of the pair of timing gears is divided into a gear part and a sleeve part having matching tapered faces. The tapered faces are pressed by a nut onto one another so that the gear part is fixed to the shaft.
    Type: Grant
    Filed: July 31, 1991
    Date of Patent: October 13, 1992
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Toshio Takeda
  • Patent number: 5145277
    Abstract: A fastener for securing a wheel to a shaft comprises a first ring having a cylindrical central opening. The first ring includes a radially extending portion having for engaging one side of the wheel. A boss having a tapered outer surface extends axially from the radially extending portion, and the central opening extends through the radially extending portion and through the boss. The fastener also includes a second ring for engaging the opposite side of the wheel, and a third ring having an inner surface engageable with the tapered outer surface of the boss of the first ring. Bolts connectable to the second and third rings urge the second and third rings axially toward each other whereby the second ring is urged against said opposite side of the wheel so that the wheel is axially pressed between the first and second rings, and the inner cylindrical surface of the boss is radially pressed against the shaft.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: September 8, 1992
    Assignee: Tsubakimoto Chain Co.
    Inventors: Norihisa Fujita, Hiroaki Nagasawa, Shinsuke Sahara
  • Patent number: 5131782
    Abstract: A small gas turbine engine including a power turbine shaft and a gearbox input shaft co-axially aligned one with the other and mounted in three bearings. The power turbine shaft is provided with a male conical surface while the gearbox input shaft is hollow and includes a female conical surface adapted to mate with the male conical surface of the power turbine shaft. The power turbine shaft also includes an axial projection being threaded and inserted within the hollow portion of the gearbox input shaft. A nut having a shoulder is threaded onto the threaded projection of the power turbine shaft and engages a shoulder provided within the hollow gearbox input shaft such that torsion applied to the nut will force axial engagement of the conical surfaces. A complementary spline section may be provided, on the one hand, between the nut engaging shoulder and the female conical section on the gearbox input shaft. The complete coupling is within the diameter of the two co-axial shafts.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: July 21, 1992
    Assignee: Pratt & Whitney Canada, Inc.
    Inventors: Vittorio Bruno, Edwin C. Tetsull
  • Patent number: 5123771
    Abstract: A coupling fixture provided with an outer ring having first and second tapered surfaces, an inner ring having third and fourth tapered surfaces, a wedge-like ring nut interposed between the outer and inner rings and axially inwardly thereof and having tapered surfaces engageable with the first and third tapered surfaces. A wedge-like ring washer is interposed between the second and fourth tapered surfaces and axially outwardly thereof and having tapered surfaces engageable with the second and fourth tapered surfaces. Screw bolts are screwable into the ring nut to expand the outer ring in diameter and contract the inner ring in diameter, each cone angle of the tapered surfaces of the washer and of the tapered surfaces engageable therewith is made larger than that of the cone angle of the tapered surfaces of the ring nut and the first and third tapered surfaces engageable therewith and makes the washer more readily removable from the outer and inner rings when the screw bolts are loosened after being tightened.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: June 23, 1992
    Inventor: Toshikazu Okuno
  • Patent number: 5093983
    Abstract: A machine for mounting electronic components on a printed circuit board has a turret assembly which carries a plurality of tool assemblies. An encoder is directly connected to the turret shaft of the assembly by screwing the end of the encoder drive shaft into an expandable hub shaft locking device.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: March 10, 1992
    Assignee: Emhart Inc.
    Inventor: Robert Sooy
  • Patent number: 5088344
    Abstract: An internal combustion engine comprising an engine block, a crankshaft rotatably supported by the block and including an axis, a first portion which is cylindrical in shape, which is concentric with the axis, and which has a uniform radius, and a second portion extending from the first portion in concentric relation thereto and having a radius less than the radius of the first portion to define a radially extending shoulder on the first portion, a flywheel including a surface engaging the shoulder, and a central aperture receiving the second portion of the crankshaft and having a radius less then the radius of the first portion, and bolts extending through the flywheel and into the first portion of the crankshaft for securing the flywheel to the crankshaft.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: February 18, 1992
    Assignee: Outboard Marine Corporation
    Inventors: Philip A. Anderson, William A. Bernau, Paul W. Breckenfeld, Geroge L. Broughton, Wallace R. Karrasch
  • Patent number: 5083889
    Abstract: An apparatus including a plurality of jack bolts which are threadedly engaged with openings in a flange on a fastener to stress a shank part of the fastener. The flange can be a collar retained on a shaft by a retainer, a nut on a threaded end of a bolt, or the head portion of a bolt. The jack bolts can be arranged in a flange on an end of a tension rod to stress arbors against opposite sides of a roll sleeve to form a roll assembly for use in a rolling mill. The apparatus includes structure for preventing escape of the jack bolts from the flange which is particularly advantageous when the apparatus is secured to moving machinery where the presence of escaped jack bolts could cause damage to the machinery.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: January 28, 1992
    Inventor: Rolf H. Steinbock
  • Patent number: 5067847
    Abstract: A clamping set is provided wherein elastic deformation of the peripheral collars is no longer necessary to produce engagement of the same. The screw ring can be pushed across the cylindrical outer peripheral surface of the outer taper ring until its inwardly projecting peripheral collar bears against the outwardly projecting peripheral collar of the outer taper ring. These can then be pushed together across the inner taper ring from its thin-walled end until the inner thread of the screw ring comes into contact with the external thread of the inner taper ring and fastening begins. All interacting parts can, thus, be designed to be substantially stronger, since they no longer need to be deformed to produce engagement. Accordingly, the forces which can be applied are also greater.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: November 26, 1991
    Inventor: Ralph Muellenberg
  • Patent number: 5067846
    Abstract: A mounting device can mount a machine element having a bore coaxially on a shaft. The mounting device has a first member having internal threads. Also, included is a split sleeve having external threads adapted to be mounted around the shaft and inside the bore. The threads of the split sleeve have apexes at a uniform diameter when unstressed. The first member is threaded on the external threads of the split sleeve. The mounting device also has a second member spaced from the first member by an amount sufficient to allow the first and second members to embrance the machine element. The threads of the first member and split sleeve are shaped to cause compression of the sleeve as the first and second members embrace the machine element.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: November 26, 1991
    Assignee: Shap Inc.
    Inventor: Tadeusz Staniszewski
  • Patent number: 5052496
    Abstract: An apparatus for rapid interchange of drive head units on a power tool motor unit is provided by forming a flared lip on the first of the two housings to be connected; capturing a coupling nut behind the flare with a split clamp ring; forming a bore on the second housing into which the flared lip and clamp ring of the first housing will fit; forming a positioning stop, within the bore, against which the flared lip of the first housing will be clamped; and providing a coupling device on the second housing to which the coupling nut of the first housing will be coupled to join the two housings.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: October 1, 1991
    Assignee: Ingersoll-Rand Company
    Inventors: Gregory P. Albert, Bruce D. Fay
  • Patent number: 5044817
    Abstract: A threaded bush assembly for receiving and coupling a shaft to a rotatable hub includes a tubular sleeve member which is located within the rotatable hub and a tubular bush member adapted to be received in either end of the sleeve member. The bush member has a central bore in which the shaft is received and is axially moveable relative to the sleeve member by means of screw threaded members. The inner circumferential surface of the sleeve member and the outer circumferential surface of the bush member each have a helical thread formed thereon. The cross-section of both threads is defined by a pair of mutually opposed tapered surfaces. The two threads are screw threadedly engageable with one another, yet define a gap therebetween which enables relative axial movement of the two threads with respect to one another such that upon axial movement of the bush member relative to the sleeve member, one tapered surface of one thread wedges against the facing tapered surface of the other thread.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: September 3, 1991
    Assignee: J. H. Fenner & Co. Limited
    Inventors: David A. Rayner, Rodney Chester
  • Patent number: 5039245
    Abstract: In the clamping assembly of this invention, whereby a rotary cutting tool is concentrically clamped to an untapered shaft that carries and drives it, a sleeve-like radially elastic collet, received in a bore through a hub-like tool body part, has a threaded end portion which projects axially beyond the bore and on which a nut is rotatable. The collet has an untapered radially inner surface and a tapered radially outer surface that progressively increases in diameter from the thread to its opposite end. The bore, all along its length, defines a matingly tapering inner wedging surface in the body part. The collet is confined to axial shifting relative to the body part. The nut is confined to rotation by a radially outwardly projecting circumferential flange on it, overlain by an annular captivating plate secured to the body part.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: August 13, 1991
    Assignee: North American Products Corp.
    Inventor: Stephen F. Hansen
  • Patent number: 5029820
    Abstract: An adjustable base for use with a rail post or section provides an upwardly facing socket portion and an adjustable wedge element associated with the socket portion. A screw associated with the wedge element and the base serves to adjust the position of the wedge relative to the base and to project the wedge into engagement with a post received in the socket portion.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: July 9, 1991
    Assignee: Robern, Inc.
    Inventor: Howard S. Katz
  • Patent number: 5025826
    Abstract: A faucet handle assembly is described for replacing a handle on a faucet valve stem, which can mount on a wide variety of types of stems. The assembly includes a pair of jaws (30, 32, FIG. 1) having inner surfaces for engaging opposite sides of the periphery (22) of the valve stem and having outer camming surfaces (42, 43) that can be pushed together. The assembly also includes a faucet handle (12) with a hole in the top for passing a screw (28) that screws into a threaded hole of the valve stem, and having a cavity (44) for receiving the jaws. The cavity has camming surfaces (54, 56) that engage the jaw camming surfaces, so as the screw is tightened the jaws are pressed tightly against the valve stem peripheral surface.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: June 25, 1991
    Inventors: Adolf Schoepe, Oscar Dufau
  • Patent number: 5013227
    Abstract: The pump comprises a stator constituted by an alternating sucession of stator plates (22) and stator rings (21) defining a sequence of compression chambers (20), and a rotor assembly comprising two shafts (24, 25) each having a compression lobe (28) in each of the compression chambers (20), with the compression lobes being placed on and fixed to their shafts during assembly of the pump, thereby enabling the axial clearance between each lobe and the adjacent stator plate to be individually adjusted, with each lobe being constituted by a body (29) and a clamping plate (30) which is fixed to the body by screws (34) which compress a set of two conical rings (32, 33), one of which (33) penetrates into the other while being compressed radially, thereby fixing the lobe in place. The assembly melthod consists in using a assembly plate (23) having a portion of extra thickness j penetrating into the stator ring over a distance corresponding to the desired clearance between the lobes and the stator plate (22).
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: May 7, 1991
    Assignee: Societe Anonyme dite: Alcatel Cit
    Inventors: Dominique Guittet, Eric Taberlet, Jean-Francois Vuillermoz