Patents Examined by Joseph M. Rolnicki
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Patent number: 4579019Abstract: An apparatus for transmitting rotary power includes first and second discrete sources of rotary power and a pair of intercoupled first and second planetary gear assemblies, each having a primary driving member, secondary driving member and driven follower member. The primary driving member, secondary driving member and driven follower member correspond to one of the following elements: ring gear, sun gear and planetary carrier cage. The primary driving member of the first gear assembly is driven by the first source of rotary power. The secondary driving members of both gear assemblies are driven by the second source of rotary power. The driven follower member of the first assembly is coupled to the primary driving member of the second assembly and the driven follower member of the second assembly, which drives the output shaft, is other than the carrier cage.Type: GrantFiled: March 24, 1982Date of Patent: April 1, 1986Inventor: Darcy Gabriele
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Patent number: 4577529Abstract: A "GEAR TRANSMISSION ASSEMBLY" or more precisely a speed change gear box with two output shafts being one main and the other secondary for driving machine tools and mechanical equipment in general, with different alternative arrangements of the speed system in a total of either seventeen different speeds, fourteen different speeds, thirteen different speeds or ten different speeds in the main output shaft consisting of a set of five slidable gears and a set of gears twice double (four gears) also slidable being one of the double sets comprised of two single gears assembled together totalling only fifteen gears and three shafts to obtain seventeen different speeds in said main output shaft. A second output shaft or secondary output shaft makes possible the output of speeds in a ratio equal to or different from the speeds of the main output shaft.Type: GrantFiled: August 30, 1982Date of Patent: March 25, 1986Inventor: Romeu Romi
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Patent number: 4572029Abstract: A speed change method and apparatus for the transmission of a vehicle provides for a speed change stage to produce a reduction gear ratio lower than a predetermined value when the engine temperature is low and vehicle speed is high, otherwise the speed change stage is prohibited from operating.Type: GrantFiled: January 8, 1982Date of Patent: February 25, 1986Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Yukio Kinugasa, Takehisa Yaegashi
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Patent number: 4563914Abstract: A continuously variable transmission with auxiliary drive, such as a flywheel and including first and second continuously variable transmission components, a planetary differential, selectable coupling apparatus having a first apparatus operative in a first mode of operation for connecting the planetary to the flywheel and to the continuous variable transmission in a first manner and a second apparatus operative in a second mode of operation for connecting the planetary to the flywheel and to the continuously variable transmission in a second manner.Type: GrantFiled: January 10, 1983Date of Patent: January 14, 1986Assignee: Industries Development Corporation (International Services)Inventor: Moshe Miller
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Patent number: 4559850Abstract: A stepless automatic transmission for a motor vehicle includes a V-belt type stepless transmission mechanism having input and output pulleys mounted respectively on input and output shafts, each pulley being provided with a hydraulic servo for varying the effective diameter thereof, and a V-belt linking the input and output pulleys to transmit power therebetween, in combination with a forward/reverse change-over mechanism and a coupler such as a fluid coupling, centrifugal clutch or friction clutch, and a hydraulic control system.Type: GrantFiled: November 28, 1983Date of Patent: December 24, 1985Assignee: Aisin-Warner, Ltd.Inventor: Shiro Sakakibara
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Patent number: 4559849Abstract: A planetary gear transmission having at least two different gearing diameters, the pinions of which are journalled independently of each other so that they can have a large gear ratio step between them; and a multi-speed transmission including first and second planetary gear sets, the second of which sets is the planetary gear transmission having the two different gearing diameters journalled independently of each other. In the multi-speed transmission, the gear ratio steps of the second planetary gear set each exceed the highest gear ratio of the first planetary gear set.Type: GrantFiled: June 23, 1981Date of Patent: December 24, 1985Assignee: S.R.M. Hydromekanik AktiebolagInventors: Karl-Gustav Ahlen, Per-Olof Bergstrom, Hans A. Wallgren
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Patent number: 4558607Abstract: In a gear-type change-speed transmission with synchronized reverse speed, the corresponding pair of gears consists of a loose gear which is adapted to be clutched with the driving shaft and of a fixed gear of the output shaft; an intermediate gear is adapted to be engaged between the loose gear and the fixed gear by means of a pivot lever; the intermediate gear meshes constantly with the loose gear, is brought in a first shifting phase into engagement with the fixed gear over a small partial area of its tooth width load-free and during the further engagement of the reverse speed is engaged into the fixed gear over its full tooth width. Only thereafter the loose gear is coupled torque-transmittingly with the input shaft.Type: GrantFiled: November 23, 1983Date of Patent: December 17, 1985Assignee: Dr. Ing. h.c.F. Porsche A.G.Inventor: Imre Szodfridt
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Patent number: 4558609Abstract: A handle assembly for a joystick controller includes a tiltably mounted, elongated, hollow, tubular shaft having an elongated rod extending coaxially therethrough. A helical compression spring is seated in a recess at one end of the shaft and coaxially encircles the rod for engagement with an enlarged-diameter button thereon, resiliently to urge the rod to a normal rest position projecting a predetermined distance from the adjacent end of the shaft. Several different-shaped handle members are interchangeably mounted on the shaft, each handle member having a cylindrical bore therethrough for receiving the shaft and frictionally engageable with a knurled portion on the outer surface of the shaft. The bore has a reduced diameter portion at one end thereof to limit the depth of insertion of the shaft.Type: GrantFiled: January 6, 1983Date of Patent: December 17, 1985Assignee: Wico CorporationInventor: Syng N. Kim
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Patent number: 4557162Abstract: A method and a device for automatic control of a transmission, in a vehicle in which a power from an internal combustion engine is transmitted through a clutch and a staged geared-transmission to driven wheels, an idea speed ratio delivered from a speed ratio calculating circuit being converted into a stepped actual speed ratio by means of a comparator circuit common to both forward and backward movements, and an actual speed ratio appropriate for the forward movement being given in advancing the vehicle or that appropriate for the backward movement being given in retracting it by utilizing an advancing/reversing signal judging whether the vehicle is being advanced or retracted on that occasion.Type: GrantFiled: November 9, 1982Date of Patent: December 10, 1985Assignee: Kabushiki Kaisha Daikin SeisakushoInventor: Takao Fukunaga
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Patent number: 4553450Abstract: The invention provides a transmission between a power input and an output shaft, especially suitable for a motor vehicle. The transmission incorporates a speed variator and a planetary device with four elements. The planetary device comprises two planetary gears connected to one another and coupled to the power input by means of the variator, a satellite-holder adapted to be braked so as to obtain reverse motion, an output element formed by the ring and the satellite-holder, and a ring which is designed to be either left idle or, for example, braked so as to obtain two ranges of forward motion. The primary pulley of the variator is coaxial with the axis of the power input, while the secondary pulley of the variator is coaxial with the planetary device. The variator and the planetary device are located in two separate enclosures of the housing.Type: GrantFiled: February 22, 1983Date of Patent: November 19, 1985Assignee: ValeoInventor: Michel Gizard
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Patent number: 4552036Abstract: An automatic transmission for four-wheel drive automotive vehicles comprising a torque converter, an automatic transmission connected to a turbine shaft of the torque converter for transmitting the output of the engine to the front-wheel, a fluid operated clutch for transmitting the output to the rear-wheel, and a pressure oil control for operating the automatic transmission. The pressure oil control includes a pressure regulator valve to produce a line pressure according to the operational condition of the engine and a changeover valve for operating the clutch. The pressure oil control is so arranged that the line pressure is raised with increase of load of the engine, and the changeover valve is adapted to be manually operated actuated to operate the clutch by the raised line pressure and such that the automatic transmission is automatically changed to the four-wheel drive in accordance with the driving condition.Type: GrantFiled: July 24, 1980Date of Patent: November 12, 1985Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Toshio Takano, Toshio Kobayashi
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Patent number: 4549450Abstract: A speed reducer with an orbital rotor, mounted for free rotation on a rotor drive wheel driven along an orbital path, has a perimeter defined by an epitrochoidal curve that simultaneously engages each of a series of rollers arranged in a circle around the rotor.The rotor drive wheel is driven by a compensation coupler that prevents radial forces of the rotor and the rotor drive wheel. The drive shaft provides only a rotary thrust on the rotor drive wheel and is shielded from reaction movements of the rotor and rotor drive wheel.The rotor drive wheel is driven by a variable-length crank arm that extends into a radial opening in the rotor drive wheel and makes sliding engagement with opposite faces of the radial opening. The driving surfaces that engage the faces of the radial opening form, in a plane perpendicular to the axis of the drive shaft, arcs of a circle equal in diameter to the width of the radial opening.Type: GrantFiled: February 25, 1982Date of Patent: October 29, 1985Inventor: Michel A. Pierrat
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Patent number: 4548097Abstract: A manipulator drive has a main support defining a main longitudinal axis, a housing rotatable on the main support about the main longitudinal axis, a head defining a head longitudinal axis and rotatable on the housing about an outer transverse axis crossing the main longitudinal axis, and a holder rotatable on the head about the head longitudinal axis. Respective housing, head, and holder stepdown drive transmissions have outputs connected directly to the housing, head, and holder and inputs and have stepdown transmission ratios of at least 70:1.Type: GrantFiled: December 2, 1981Date of Patent: October 22, 1985Assignee: Kuka Schweissanlagen & Roboter GmbHInventor: Ernst Zimmer
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Patent number: 4548101Abstract: A power supplying member supplies rotational power in a certain rotational direction to a first member of the transmission, and a power receiving member takes out power from a second member. Several power transmission systems are provided between the first and the second member, which are selectively engagable so as to provide various speed stages between them. Each power transmission system has a clutching mechanism which either can be disconnected so as to freewheel in both rotational directions, or can be connected to transmit rotational power at least in the one rotational direction which is required for transmission of power through that power transmission system from the first member to the second member. A fluid torque converter is provided in the rotational power transmission path of only one of the power transmission systems which provides the lowest gearing ratio between the first member and the second member.Type: GrantFiled: February 11, 1983Date of Patent: October 22, 1985Assignee: Toyota Jidosha Kabushiki KaishaInventors: Teruo Akashi, Hiroshi Ito, Shigemichi Yamada
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Patent number: 4543853Abstract: A bearing support of a differential gear in an undivided axis housing with two substantially coaxial roller bearings arranged at approximately the same distance to and on different sides of the plane of the axes of rotation of differential bevel gears; each of the roller bearings supports a bearing neck of the differential gear housing within a bearing opening of the axle housing, whereby at least one of the roller bearings includes an outer race which is inserted directly into its bearing opening and is enlarged in its outer diameter, with respect to the corresponding standard diameter.Type: GrantFiled: June 1, 1982Date of Patent: October 1, 1985Assignee: Daimler-Benz AktiengesellschaftInventors: Gotz von Hiddessen, Dieter Wachtel
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Patent number: 4543852Abstract: A transmission mechanism in particular for automobiles with a front wheel drive comprises a planetary forward-reverse gear set and a continuously variable pulley drive that is drivingly connected to a differential gearing. A forward friction disk clutch provided for obtaining a forward driving direction of the transmission mechanism may be selectively operated by a servo piston that is fixedly connected in an axially stationary manner to the adjusting piston of a hydraulic adjusting means provided for the selective adjustment of the movable sheave of a primary pulley of said pulley drive whereby the mutual arrangement is chosen in such a manner that the adjusting cylinder being fixedly connected to this movable sheave at least partly surrounds the servo piston. By this particular arrangement the axial dimension of the entire transmission mechanism may be reduced without the requirement of a separate starting clutch for the entire clutch assembly.Type: GrantFiled: November 2, 1983Date of Patent: October 1, 1985Assignees: Ford-Werke Aktiengesellschaft, Van Doorne's Transmissie B.V.Inventors: Eugen Svab, Petrus H. van Deursen, Theodorus P. M. Cadee
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Patent number: 4541298Abstract: A mounting for an adjustable steering column comprising a support (6) for rotatably carrying a column member, a bracket (1) carrying the support, the support (6) being movable relative to the bracket in two mutually perpendicular directions, two rack and pinions sets (16,17,18,19 and 22,23,24,25) connected between the bracket (1) and the support (6) such that movement of the support (6) relative to the bracket in each of the mutually perpendicular directions causes the pinions (18,19,24,25) to roll relative to their racks (16,17,22,23) of respective rack and pinion sets, and clamping means (32,36,38) for clamping the bracket to the support by increasing the frictional forces opposing the relative movement of the racks and the pinions.Type: GrantFiled: January 5, 1983Date of Patent: September 17, 1985Assignee: Ford Motor CompanyInventor: Derek W. Strutt
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Patent number: 4539870Abstract: A single accumulator is operatively connected to a fluid operated clutch so as to retard a rise in fluid pressure supplied to the fluid operated clutch which is to be engaged during a downshift from the highest speed ratio to any one of the lower speed ratios and when the transmission shifts from a neutral to a forward drive.Type: GrantFiled: July 29, 1983Date of Patent: September 10, 1985Assignee: Nissan Motor Co., Ltd.Inventor: Kazuhiko Sugano
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Patent number: 4539869Abstract: A lock-up control system for a lock-up type automatic transmission of an automotive vehicle.The lock-up control system functions to temporally release lock-up operation of a torque converter of the transmission upon occurrence of a gear shift signal even if the automotive vehicle is operating within any one of lock-up ranges. Gear shifting detector means generates a gear shift signal having a time duration which is variable corresponding to the time duration of a corresponding gear shifting operation. The duration of the gear shift signal generated by the gear shifting signal may also be variable also with the magnitude of engine load.Type: GrantFiled: July 6, 1981Date of Patent: September 10, 1985Assignee: Nissan Motor Co., Ltd.Inventors: Masaaki Suga, Yoshiro Morimoto, Hideo Hamada, Masaaki Futagi, Tadashi Suzuki
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Patent number: 4539866Abstract: A continuously variable transmission with wide ratio coverage has a variable ratio belt drive in series with a fixed ratio drive which is selectively connectible between the input and output shafts. A pair of selectively engageable clutches cooperate with the belt drive to provide two continuously variable speed ratio ranges. A transition clutch maintains power flow between the input and output shafts during shifting from one range to the other. The belt drive is controlled between the maximum and minimum drive ratios in each speed range. The belt ratio is held constant while the transition clutch is engaged.Type: GrantFiled: November 3, 1983Date of Patent: September 10, 1985Assignee: General Motors CorporationInventor: Erkki A. Koivunen