Hollow Or Layered Shaft Patents (Class 464/183)
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Patent number: 4531420Abstract: A rotary shaft having a bearing surface and an oil seal surface formed close to each other at a portion of a shaft body rotatably mounted in a case of a transmission, wherein a groove is circumferentially formed on the periphery of the shaft body between the bearing surface and the oil seal surface before each of the surfaces is finished, so that the bearing surface and the oil seal surface can be finished so as to be suitable for their respective functions.Type: GrantFiled: December 29, 1982Date of Patent: July 30, 1985Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hajime Arai, Shozi Haga, Tadashi Nozaki
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Patent number: 4527978Abstract: A driveshaft having a heat-treated aluminum alloy tube and a heat-treated aluminum alloy connection member partially telescoped within each end of the tube and joined to it by welding. The tube has a constant outside diameter and a wall thickness which is constant throughout most of the length and which increases adjacent each end.Type: GrantFiled: February 13, 1984Date of Patent: July 9, 1985Assignee: Dana CorporationInventor: Barry L. Zackrisson
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Patent number: 4518370Abstract: A unit comprising a transmission shaft and elements of constant-speed joints connected to such shaft has a moment of inertia I.sub.G about an axis perpendicular to the transmission shaft and passing through the center of gravity of the unit which is defined by the relation I.sub.G =m.multidot.h.multidot.l, in which m is the mass of the unit and h and l are the distances between the articulation centers of the two joints and the center of gravity. This arrangement prevents radial vibrations of a driving shaft in the region of the joint to be connected to a wheel.Type: GrantFiled: May 23, 1983Date of Patent: May 21, 1985Assignee: Glaenzer SpicerInventor: Michel A. Orain
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Patent number: 4475820Abstract: Flexible shafting has an outer flexible shaft with a hollow central bore for receiving an electrically insulating flexible tube which, in turn, receives an inner flexible shaft therein. The outer and inner flexible shafts are capable of rotating independently of each other while simultaneously transmitting an electric current.Type: GrantFiled: October 22, 1982Date of Patent: October 9, 1984Assignee: Pennwalt CorporationInventor: Gerard M. Mulligan
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Patent number: 4460202Abstract: An improved intermediate weight member to be put in a drill string between the collars and the drill pipe which has a spiraled outer surface, and which is so configured as to provide a uniform bending moment of inertia over its length including the slip area.Type: GrantFiled: November 26, 1980Date of Patent: July 17, 1984Inventors: Glenn G. Chance, William Kovensky
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Patent number: 4451245Abstract: A coupling connection for a fiber reinforced synthetic resin pipe, especially for a driving or driven hollow shaft of a motor vehicle, wherein the fibrous synthetic resin pipe is non-rotatably connected with a coupling element arranged concentrically to the pipe. The coupling element includes peripheral teeth and is pressed onto the fiber reinforced synthetic resin pipe in such a way that the coupling element forms a shape-mating connection with the fiber reinforced synthetic resin pipe in a direction of rotation of the pipe.Type: GrantFiled: February 25, 1981Date of Patent: May 29, 1984Assignee: Daimler-Benz AktiengesellschaftInventors: Rudolf Hornig, Gunter Worner
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Patent number: 4427080Abstract: A porous layer is placed on the outside of various well implements. The layer allows movement of liquid toward sites of localized low pressure and therefore prevents differential pressure stickage of the well implements on the borehole wall.Type: GrantFiled: December 11, 1980Date of Patent: January 24, 1984Assignee: Exxon Production Research Co.Inventor: Ronald P. Steiger
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Patent number: 4427398Abstract: A device for coupling and uncoupling two parts which are movable relative to each other, particularly parts of the drives of vehicles, for instance for high-speed power vehicles, by means of a length-variable guide rod. On the tubular guide rod segment there is arranged a housing having a cylinder chamber in which the cylindrical part of the axially shiftable guide rod segment extends, this cylindrical part being provided with engaging portions for annular pistons which surround it. Two annular pistons are supports for a preloaded coil spring arranged therebetween, and upon pulling or compressive force, one of the spring-loaded annular pistons, depending upon the direction of force, is axially shifted against the preloaded coil spring by the corresponding engaging portion of the cylindrical rod part of the guide rod segment.Type: GrantFiled: October 23, 1981Date of Patent: January 24, 1984Assignee: Thyssen Industrie AktiengesellschaftInventors: Hans-Dieter Eisbrecher, Helmut Ruppert
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Patent number: 4421497Abstract: A drive shaft for motor vehicles has a tubular shaft portion of synthetic plastic resin in which fibers are embedded. Metallic end pieces are in part received in and bonded to the shaft portion; connecting elements can be connected to the parts which project outwardly from the shaft portion. A method of making this shaft is also disclosed.Type: GrantFiled: November 3, 1980Date of Patent: December 20, 1983Assignee: Felten & Guilleaume Energietechnik GmbHInventors: Helmut Federmann, Joachim Bausch
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Patent number: 4392839Abstract: A drive shaft construction particularly for a motor vehicle including a hollow tubular shaft having a pair of end portions formed with a splined configuration adapted to receive driving joints is structured so that the tubular shaft is formed with an intermediate portion having an outer diameter greater than the outer diameter of the end portions, with the wall thickness of the intermediate portion being between 1/8 and 1/15 of the outer diameter of the intermediate portions.Type: GrantFiled: February 26, 1981Date of Patent: July 12, 1983Assignee: Lohr & Bromkamp GmbHInventor: Erich Aucktor
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Patent number: 4385897Abstract: In the assembly, an elastomeric sleeve is radially compressed between a cylindrical bore of a hub of a universal joint and the outer surface of a tubular element. The outer surface has for example a rectangular cross-sectional shape so that torque can be transmitted between the hub and the tubular element. In order to ensure that the transmission of torque is maintained in the event of failure of the sleeve, a washer, which the tubular element extends through normally without contact and which is fixed to the hub, ensures a rotational driving connection between the tubular element and the hub by a circumferential abutment of the tubular element with the inner opening of the washer when the elastomer of the sleeve is destroyed.Type: GrantFiled: February 27, 1981Date of Patent: May 31, 1983Assignee: NADELLAInventor: Bernard Mallet
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Patent number: 4380443Abstract: A drive shaft, particularly for motor vehicles, has a tubular shaft part of a fiber reinforced synthetic plastic material, two end pieces each associated with respective one of the end portions of the shaft and having sleeve-shaped and ring-shaped sections, and a plurality of anchoring pins arranged on the end pieces on the region between the sleeve-shaped and the ring-shaped section at circumferentially spaced locations.Type: GrantFiled: June 9, 1981Date of Patent: April 19, 1983Assignee: Felten & Guilleaume Carlswerk AktiengesellschaftInventors: Helmut Federmann, Joachim Bausch
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Patent number: 4375194Abstract: The drive shaft assembly comprises first and second telescoping shafts supported above ground level. A motor is coupled to the first shaft for extending it in an axial direction. Another motor is connected to the second shaft for rotating the second shaft about its longitudinal axis. These shafts are connected by a coupling so that the second shaft rotates the first shaft in all positions of the first shaft. The first shaft terminates at a free end in a frictional engageable end portion.Type: GrantFiled: November 24, 1980Date of Patent: March 1, 1983Assignee: S I Handling Systems, Inc.Inventor: Peter H. Rohrbach
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Patent number: 4363631Abstract: The shaft of a glandless pump which is made of sintered oxide ceramics in order to resist chemical attack is formed with a projection upon which there is mounted a metal sleeve having a bottom in order to enable a tool, such as a screwdriver, to be applied against the shaft for rotating the shaft when unblocking the pump without causing damage to the ceramic material of the shaft.Type: GrantFiled: June 4, 1980Date of Patent: December 14, 1982Assignee: Feldmuhle AktiengesellschaftInventor: Gert Wloka
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Patent number: 4362520Abstract: This invention is a heavy-duty flexible shaft that accommodates for misalignments between an input and output shaft. The flexible shaft is comprised of a multiplicity of hollow, individually fabricated, interfitting members housed in a tubular, bendable shaft. Each segment is intimately engaged, one within the other, yet the segments are so designed to allow for limited longitudinal movement while restricting circumferential movement between segments during torsional transmissions from the input to the output shafts.Type: GrantFiled: May 12, 1980Date of Patent: December 7, 1982Inventor: John C. Perry
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Patent number: 4362521Abstract: The carbon fibre reinforced plastics tube (1) is provided at each end with a cemented-in sleeve (2) and a cemented-on sleeve (3) made of the same material and having the same anisotropy behaviour. A fitting (4) is inserted into each end of the tube to introduce a torque and is secured by bolts (5). The bolts are secured by a sleeve (6). The securing of the fittings by bolts and the adapted structure of the wall reinforcements ensure a safe introduction of torque, even into extremely anisotropic tubes.Type: GrantFiled: April 30, 1980Date of Patent: December 7, 1982Assignee: Ciba-Geigy CorporationInventors: Alfred Puck, Peter Voirol
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Patent number: 4358284Abstract: A drive shaft, particularly for motor vehicles, has metallic end members having facing axially inner sections of larger diameter, axially outer sections of smaller diameters and transition sections connecting the inner and outer sections. The end members are, with the exception of small axial lengths of the outer sections, embedded in and surrounded by a tubular shaft member which is constructed by winding a plurality of layers of carbon or glass-fiber roving impregnated with synthetic plastic, onto a lost mandrel and heat-hardening the synthetic plastic.Type: GrantFiled: November 3, 1980Date of Patent: November 9, 1982Assignee: Felten & Guilleaume Carlswerk AGInventors: Helmut Federmann, Joachim Bausch
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Patent number: 4348874Abstract: The disclosure concerns a multiple-spline hub that is particularly useful for a telescopic shaft for transmitting torque. There is a thin-walled tube section which is developed as a toothed profile tube having teeth of trapezoidal cross-section. There is a thicker-walled tube to which the connecting element of the telescopic shaft, such as a joint fork, is attached. The toothed tube section is inserted in the bore of the thicker-walled tube and the crests of the teeth of the tube section engage the interior surface of the bore of the tube. The crests of the teeth are bonded by brazing to the bore of the thicker-walled tube.Type: GrantFiled: April 11, 1980Date of Patent: September 14, 1982Assignee: Voith Transmit GmbHInventors: Helmut Muller, Heinz Schweizer