Fluid Actuator Patents (Class 74/473.11)
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Patent number: 6397698Abstract: The present invention intends to provide a controlling device for transmission in which locking action of the locking mechanism is not hindered by a part of the controlling device such as an actuator, when a fork shaft as an operating mechanism is held at a neutral position. For such purpose, the controlling device for transmission includes plural fork shafts, a selecting member selectively engaging with one of the fork shafts, a selecting actuator for moving the selecting member to engage with the fork shaft, a shifting actuator for applying load to the fork shaft engaged by the selecting member, and locking mechanism for locking the fork shafts. In such controlling device, the selecting actuator is constructed to move the selecting member to a non-engaging position not engaging with any of the fork shafts.Type: GrantFiled: August 22, 2000Date of Patent: June 4, 2002Assignee: Aisin AI Co., Ltd.Inventors: Mitsutoshi Kamiya, Takeshige Miyazaki
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Patent number: 6363806Abstract: A shift control method for a pneumatic shift system including the steps of determining if a gearshift lever is positioned in a neutral range after receiving gearshift lever position signals, controlling a first magnetic chamber of a magnetic valve assembly from ON to OFF for a predetermined time interval if the gearshift lever is in the neutral range, and controlling both the first magnetic chamber and a second magnetic chamber of the magnetic valve assembly to ON if the predetermined time interval has elapsed.Type: GrantFiled: May 8, 2000Date of Patent: April 2, 2002Assignee: Hyundai Motor CompanyInventor: Young-Rock Kim
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Patent number: 6357315Abstract: An arrangement 1 for selectively actuating the four-wheel drive and differential lock engagement means of a vehicle comprises a hand operable selector mounted a bracket 4, the bracket 4 including a pathway, the selector comprising a protrusion which co-operates with the said pathway, so that movement of the selector in a first direction from a first position to a second position actuates four-wheel drive, and further movement in the first direction from the second position to a third position actuates the said differential lock, the pathway preventing the selector from moving in the first direction from the second position to the third position without first being moved in a second direction.Type: GrantFiled: December 20, 1999Date of Patent: March 19, 2002Assignee: AGCO LimitedInventors: Derek John Smith, David William Seccull
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Patent number: 6347559Abstract: The device connects a first shaft having a respective first axis, and a second shaft having a respective second axis located a given distance from and parallel to the first axis, and has an arm integral with the first shaft, and a pocket located along the second axis of the second shaft and engaged by a distal end of the arm. The device has a body fitted to the second shaft and having a peripheral portion in which the pocket is formed, and a recess is formed close to the pocket to permit access to the pocket by the distal end.Type: GrantFiled: February 14, 2000Date of Patent: February 19, 2002Assignee: Magneti Marelli S.p.A.Inventors: Gianluigi Lenzi, Alberico Raco, Marco Savorani
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Patent number: 6338286Abstract: Apparatus for controlling the gears of a motor vehicle comprising a pivotable gear lever for pivoting between gear positions corresponding to the gear positions for the motor vehicle transmission, a primary hydraulic piston/cylinder arrangement coupled to the gear lever, a secondary hydraulic piston/cylinder arrangement coupled to the gearbox of the motor vehicle, and a hydraulic circuit hydraulically communicating with the primary and secondary hydraulic piston and cylinder arrangements and including a flow limiter valve with an open position in which the hydraulic flow in the hydraulic circuit is not limited and a plurality of closed positions for controllably limiting the hydraulic flow in the hydraulic circuit whereby movement between the various gear positions for the motor vehicle is controlled.Type: GrantFiled: March 10, 2000Date of Patent: January 15, 2002Assignee: Kongsberg Automotive ASAInventors: Kenneth Skogward, Hans Peter Havdal
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Patent number: 6327931Abstract: Apparatus is disclosed for controlling the operational states of a motor vehicle comprising a maneuvering console including a maneuvering lever, a pivot hinge for the maneuvering lever so that the maneuvering lever can be actuated into a number of positions corresponding to the operational states of the motor vehicle, the pivot hinge being mounted to permit pivoting of the maneuvering lever with respect to the maneuvering console about an unlimited number of spatial pivot axes, a plurality of hydraulic pistons and cylinders mechanically coupled to the maneuvering lever for selectively limiting the pivoting movement of the maneuvering lever, a plurality of sensors for detecting a maneuvering force applied to the maneuvering lever and the position of the maneuvering lever so that the pivoting movement of the maneuvering lever can be selectively limited by the plurality of hydraulic pistons and cylinders based upon those detections, and a controller for controlling the plurality of hydraulic pistons and cylinderType: GrantFiled: March 13, 2000Date of Patent: December 11, 2001Assignee: Kongsberg Automotive ABInventor: Kenneth Skogward
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Patent number: 6325166Abstract: In a hydraulic travelling agricultural machine which includes travelling sections, a pump operating unit is disposed in an operating section for controlling the steering and speed change of the travelling sections. The pump operating unit is connected interlockingly to a pair of varible flow rate control pumps via a link mechanism for a spool, and is operated by a steering mechanism and a speed changing mechanism. Accordingly, the natural vibration occurring in the variable flow rate control pumps is obsorbed by the link mechanisms, and hence the vibration transmitted to the pump operating unit is attenuated. The propagation of the vibration to the steering mechanism and the speed changing mechanism is thereby inhibited.Type: GrantFiled: December 14, 1998Date of Patent: December 4, 2001Assignees: Yanmar Agricultural Equipment Co., Ltd., Seirei Industry Co., Ltd.Inventors: Takanobu Shimada, Katsumi Fujiki, Kouichi Hiroshige
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Publication number: 20010037696Abstract: A control device for a semiautomatic gearshift mechanism of a vehicle has a first actuator for moving a gearshift shaft for gutter selection in a first shaft movement direction. A second actuator moves the gearshift shaft for gear selection in a second shaft movement direction. The first actuator has a primary piston and at least two auxiliary pistons for moving the primary piston alternatingly in two travel directions. The primary piston has a piston body having first and second piston body end faces facing away from one another. The primary piston has first and second piston rods, wherein the first piston rod is connected to the first piston body end face and the second piston rod is connected to the second piston body end face, wherein the first and second piston rods project away form the first and second piston body end faces and extend in the travel directions.Type: ApplicationFiled: February 28, 2001Publication date: November 8, 2001Inventors: Roland Meyer, Thomas Claus
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Patent number: 6305237Abstract: A bicycle shift control device for controlling a gas actuated shifting device includes a housing; a first gas valve actuating member; a second gas valve actuating member; a first shift member coupled to the housing for movement in a first direction, wherein the first shift member is operatively coupled to the first gas valve actuating member; and a second shift member coupled to the housing for movement in a second direction, wherein the second shift member is operatively coupled to the second gas valve actuating member.Type: GrantFiled: February 27, 1998Date of Patent: October 23, 2001Assignee: Shimano, Inc.Inventor: Tadashi Ichida
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Patent number: 6223617Abstract: A control device for a transmission of a motor vehicle has a housing and actuators with which a rotary or linear movement of a gear shifting shaft of the transmission is performed in order to select gates and gears of the transmission. The actuators are arranged adjacent and parallel to one another in the housing.Type: GrantFiled: September 11, 1998Date of Patent: May 1, 2001Assignee: Hydraulik-Ring GmbHInventors: Dieter Tischer, Roland Meyer
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Patent number: 6202812Abstract: A simplified shift actuator utilizes standard hydraulic components to achieve high neutral and low positions. A floating piston is movable within a cylinder, and abuts a spacer after a predetermined amount of movement. Once the floating piston abuts the spacer, further movement of the rod is prevented. This defines the neutral position. The use of the spacer and the floating piston provides a simplified arrangement for achieving the neutral position when compared to the prior art.Type: GrantFiled: October 27, 1999Date of Patent: March 20, 2001Assignee: Meritor Heavy VehicleInventor: Michael G. Semke
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Patent number: 6170352Abstract: An operating device for an automated gear box having a shift gate with a selector slot, three or more shift slots intersecting the selector slot, and an actuator for actuating a gear or shifting shaft in shifting motions. The shifting shaft has a pin or shaft extending through the shift gate. A blocking device with one or more blocking elements moveable generally along the selector slot allows movement of the pin to an adjacent shift slot and shifting within the shift slot by the actuator while blocking further movement of the pin along the selector slot upon engaging a blocking element.Type: GrantFiled: December 17, 1998Date of Patent: January 9, 2001Assignee: AFT Atlas FahrzeugtechnikInventors: Dirk Neubauer, Klaus-Jörg Breuer, Detlef Axmacher
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Patent number: 6167773Abstract: Adjusting device for the automatic operation of a gear-change device with a shifting shaft associated with linear drives to introduce a rotational and a translatory movement. To convert an introduced translatory movement into a rotational movement, the linear drive provided to introduce rotational movement is actively connected to the shifting shaft by an articulated connection having two support elements that are urged toward each other by a prestress force and an articulated element actively connected in a force locking position between the two support elements by the prestress force.Type: GrantFiled: January 28, 1999Date of Patent: January 2, 2001Assignee: Mannesmann Sachs AGInventors: Jens Dorfschmid, Andreas Ratte