Patents Examined by Troy Grabow
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Patent number: 5765438Abstract: A manual starter for model engines includes a winding wheel unit and a clutch unit. The clutch unit has a base, a starting device, a position device, an urging device and a return device combined together. The starting device is both rotated and moved backward by the winding wheel rotated by a pull rope wound around the winding wheel, moving an engage shaft into engagement with and to rotate a piston crank of a model engine so as to start the engine. Then after the engine is started, the engage shaft is automatically retracted by the position device and the urging device to be disengaged from the piston crank, permitting the engine to operate freely.Type: GrantFiled: August 30, 1996Date of Patent: June 16, 1998Inventor: Lien-Sheng Chang
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Patent number: 5761964Abstract: A slidable washer (30) has a cylindrical part and a plane part joined thereto. The cylindrical part is placed between an inner circumferential face of a wheel gear (24) and an outer circumferential face of a boss part (23) of a gear housing (22) in order to reduce the frictional force caused during sliding movement therebetween. Further, the plane part joined to the cylindrical part is placed between a side (24b) of the wheel gear (24) and a base (22a) of the gear housing (22) so that the sliding frictional force therebetween is reduced and the cylindrical part of the slidable washer (30) is prevented from inclining toward the axial direction of the boss part (23).Type: GrantFiled: May 23, 1996Date of Patent: June 9, 1998Assignee: ASMO Co., Ltd.Inventors: Takahiro Yamada, Nobuyuki Yasuhira
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Patent number: 5761963Abstract: A device for converting the rotation of a spindle nut into a force-related linear translation of a threaded spindle in an electromechanical valve actuator, the spindle being formed with longitudinal grooves in which clamping hooks are located. Hooked ends of the clamping hooks engage retainer rings of which one retainer ring abuts a collar on the spindle nut or abuts a stationary abutment, respectively, and another retainer ring restrains one end of a spring, the other end of which is restrained by a stationary abutment or the collar.Type: GrantFiled: September 20, 1996Date of Patent: June 9, 1998Assignee: Honeywell Inc.Inventor: Heinen Hartwig
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Patent number: 5761962Abstract: A shaft rotation driving apparatus for a machine tool having a main spindle for rotating a tool or a workpiece, comprises: a magnetic anisotropic rotor formed integral with the main spindle itself or with a rotary sleeve itself fitted to the main spindle; a stator disposed coaxially along an outer circumference of the magnetic anisotropic rotor; a field winding wound around the stator, for magnetizing the rotor in a predetermined direction; and an armature winding wound around the stator, for providing a rotative force to the rotor.Type: GrantFiled: March 12, 1996Date of Patent: June 9, 1998Assignee: Toshiba Kikai Kabushiki KaishaInventors: Katsuyosi Aiso, Sakasi Adati, Tosihiro Igarasi, Sin Tanoue, Satosi Kumamoto, Masanori Wakuda
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Patent number: 5758541Abstract: In an elastic frictional member including: a core ring fitted on a sleeve fixedly mounted on a shaft; and an elastic element engaged with the outer cylindrical surface of the core ring, a plurality of small protrusions are extended from the outer surface of a lip forming a part of the elastic element; that is, from a slide surface of the elastic element which is in slide contact with the inner cylindrical surface of a shaft hole formed in the gear. The small protrusions of the lip are in point contact with the inner cylindrical surface of the shaft hole of the gear; that is, the outer surface of the lip from which the small protrusions are extended is spaced from the inner cylindrical surface of the shaft hole of the gear, thus allowing the formation of a lubricant film in the space. The lubricant film thus formed maintains the friction coefficient substantially constant.Type: GrantFiled: April 3, 1995Date of Patent: June 2, 1998Assignee: Koyo Chicago Rawhide Co., Ltd.Inventor: Takeshi Shibuya
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Patent number: 5758543Abstract: A directly mounted shift lever assembly (30) for a manually shifted vehicular transmission (16) for minimizing shift lever-induced jumpout. A counterweight (52) is mounted to the shift lever (31) in a forwardly extending manner to move the center of gravity (CG) of the resultant shift lever assembly forward of the shift lever Y--Y pivot axis (34).Type: GrantFiled: May 6, 1996Date of Patent: June 2, 1998Assignee: Eaton CorporationInventor: John J. Bair
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Patent number: 5749265Abstract: A ball screw device is designed such that a load axially applied to a ball nut is uniformly supported by balls of all ball screw groove portions. The design is such that a gap along a load acting line between a ball and a ball screw groove portion farther from an attachment portion of the ball nut is smaller than a gap between a ball and a ball screw groove portion closer to the attachment portion, by an amount corresponding to an elastic deformation caused in the corresponding screw groove portion of the ball nut by a load acting on the ball nut.Type: GrantFiled: September 28, 1995Date of Patent: May 12, 1998Assignee: NSK, Ltd.Inventors: Ken Namimatsu, Manabu Matsuura
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Patent number: 5746092Abstract: A viscous coupling gear device has a first case having a protrusion extending from a surface thereof, and a second case having a surface facing the surface of the first case and a protrusion extending from the surface of the second case. A gear has a driving portion for driving engagement with a first rotary member undergoing intermittent rotation and for transmitting intermittent rotation to the gear, a tubular portion extending from the gear and mounted on the protrusion of the first case for relative rotation therewith, and a tubular wall portion extending from the gear and disposed coaxially with and spaced from the tubular portion to define a cavity therebetween, the protrusion of the second case extending into the cavity and defining, together with the cavity and the tubular wall portion, a clearance. A driving member engages with a second rotary member for transmitting rotation of the gear to the second rotary member.Type: GrantFiled: September 28, 1995Date of Patent: May 5, 1998Assignee: Seiko Clock Inc.Inventor: Koji Baba
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Patent number: 5743140Abstract: A starter motor attachment angle adjusting method and apparatus which enable a starter motor to be attached to an internal combustion engine in a variety of rotational positions are disclosed. The apparatus includes an adaptive ring with a plurality of threaded position defining holes, and an adapter with a plurality of holes by which the adapter is securely connected to the adaptive ring by bolts. The position defining holes in the adaptive ring allow the adapter to be rotationally repositioned with respect to the adaptive ring. The adaptive ring is connected to the starter motor and the adapter is connected to the engine. Hence, the starter can be attached to the engine in a variety of rotational positions. Further, the apparatus allows rotational repositioning without interfering with transverse securing bolts which connect the adapter to the engine. Alternatively, the adaptive ring has a polygonal outer edge which interlocks in a plurality of rotational positions with a recess formed in the adapter.Type: GrantFiled: June 7, 1996Date of Patent: April 28, 1998Inventor: Keith A. Gustafson
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Patent number: 5743149Abstract: An articulated telescopic boom assembly for a lifting device includes a first elongated boom having a central longitudinal axis and an opening in one end; a second elongated boom having a first end normally telescopically received by and extensible from the first boom opening, the first end having at least one elongated pivot guide slot therein having a central longitudinal axis with an open end remote from the first end and a closed end proximate to the first end; and a slide-through knuckle having a housing with an opening therein for receiving the second boom during extension and retraction thereof. The housing is pivotally connected to the first boom by a pair of opposing elongated pins which define a pivot axis. The central longitudinal axis of the pivot guide slot is offset from and perpendicular to the pivot axis such that when the closed end of the guide slot is registered with the pivot pins, the second boom is pivotable.Type: GrantFiled: February 26, 1996Date of Patent: April 28, 1998Assignee: Skyjack Equipment Inc.Inventor: Richard E. Cullity
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Patent number: 5740694Abstract: A plurality of rollers is accommodated in respective roller-accommodating grooves formed on an inner peripheral face of a clutch outer member integral with a planet carrier connected with an output shaft. The rollers contact a peripheral face (roller-contact face) of a clutch inner member integral with a stationary member. Roller-engaging grooves are formed on an outer peripheral face of the clutch inner member.Type: GrantFiled: May 29, 1996Date of Patent: April 21, 1998Assignee: Nippondenso Co., Ltd.Inventors: Yasuhiro Nagao, Mitsuhiro Murata
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Patent number: 5737970Abstract: A safety steering column for a motor vehicle comprising a multi-member steering spindle, of which a portion close to the steering wheel is guided in a steering column tube which is fastened on a cross member largely unaffected in the case of a front collision. A portion of the steering spindle located close to the steering gear is constructed as a deformation member for absorbing an axial displacement of the steering gear. The deformation member is hinged on at one end to the portion of the steering spindle close to the steering wheel and is hinged on the other end to the input shaft of a steering gear. The input shaft of the steering gear has a desired bending point which is designed such that, when the steering gear in the direction of the passenger compartment such as during an accident, first the axial displacement path of the deformation member is largely used up before a buckling deformation starts at the desired bending point.Type: GrantFiled: June 24, 1996Date of Patent: April 14, 1998Assignee: Mercedes-Benz AGInventors: Ulrich Asbrand, Juergen Class
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Patent number: 5735769Abstract: A toroidal type continuously variable transmission includes an input disk mounted on an input shaft; an output disk mounted on an output shaft; and a pair of power roller bearings each of which includes an inner race, an outer race, and a plurality of rolling elements. The inner races are engaged with the input and output disks to transmit the power of the input shaft to the output shaft. The inner races, outer races, input disk and output disk are made of case hardening steel, and are each subjected to a heat treatment in which carburizing or carbonitriding, hardening and tempering are performed sequentially, and then to shot peening, and finished by grinding of a predetermined grinding portion.Type: GrantFiled: April 18, 1995Date of Patent: April 7, 1998Assignee: NSK Ltd.Inventors: Hiromichi Takemura, Hideki Kokubu
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Patent number: 5735172Abstract: A swashplate machine comprises a casing (1) provided with end members (2, 3) and a rotatable shaft (4). The shaft (4) drives a swashplate (5) through an interconnecting member (6) comprising an off-set sleeve (7) that is keyed to the shaft (4) and a non-rotating ball portion (8). The interconnecting member (6) is further supported by a pair of end cones (15). A baffle (9) fixed to the casing (1) intersects the swashplate (5) and an oscillatable pivotable slotted member is provided at the intersection. The arrangement of the swashplate machine being such that at least one of the end cones (15) is slidably mounted in the casing (1) on a guide (18) such that during operation of the swashplate machine limited axial movement of at least the one cone (15) is possible whilst rotational movement of the cone (15) is prevented by the guide (18).Type: GrantFiled: May 24, 1996Date of Patent: April 7, 1998Inventor: Alfred Parker
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Patent number: 5735171Abstract: A pivot joint includes a housing surrounding a rotatable shaft. A retainer clip frictionally engages the shaft and seats against one end of the housing to fixedly axially position the rotatable shaft and the housing with respect to each other and to a rotatable lever connected to one end of the rotatable shaft. In one embodiment, the rotatable shaft is hardened and the retainer clip is hardened to a higher hardness than the hardness of the rotatable shaft. In another embodiment, a pair of retainer clips frictionally engage opposite ends of the rotatable shaft and seat against the rotatable lever and one end of the housing to form a fixed dimensional relationship between the housing, the rotatable shaft and the lever. The retainer clip may include notches formed on the edge of a frusto-conical annulus surrounding a central aperture in the retainer clip to form a discontinuous shaft engaging surface.Type: GrantFiled: May 15, 1995Date of Patent: April 7, 1998Assignee: ITT CorporationInventors: Donald B. Moote, Kris B. Rogers, Andrew C. Stewart, Frank R. Varela, Michael W. Boles, Gerald McLean, Teodor G. Nedelcu
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Patent number: 5735177Abstract: A remote control mechanism has a gear lever 1 with a control knob 6 at its upper end and fastened at its lower end to a lever block member 7. The lever block member 7 is mounted on a first ball stud 9 so as to be pivotable about two mutually perpendicular axis 2, 3, such that pivotal movement of the gear lever 1 about the axis 2 effects translation of the cable core 17 of a push pull cable 4 attached to the bottom of the lever block member 7, thereby to execute a gear change. A second ball stud 20 is mounted on the lever block member 7 and is mounted in a complementary shaped surface of a bearing member 23, the external periphery of which is mounted for translational movement in an aperture 24 in one arm of a bell crank lever 25.Type: GrantFiled: June 22, 1995Date of Patent: April 7, 1998Assignee: Morse Controls LimitedInventor: David John Crack
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Patent number: 5732596Abstract: An anti-backlash nut, movable along a rotatable screw. The nut has internal threads complementary to the threads in the screw. The nut has two nut halves movable as a unit and also rotatable relative to each other on the screw. Means are connected to the nut halves to induce their relative rotation on the screw in opposite directions and there are elastomeric friction means between the two halves to limit their relative rotational movement.Type: GrantFiled: October 15, 1996Date of Patent: March 31, 1998Assignee: Kerk Motion Products, Inc.Inventors: Keith W. Erikson, Kenneth W. Erikson
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Patent number: 5732600Abstract: A vehicle (10) has a steering gear (26) connected with a frame (12) to turn steerable vehicle wheels (14). A body (16) of the vehicle (10) is resiliently mounted on the frame (12). A steering wheel (28) is connected with the body (16) of the vehicle and is rotatable to actuate the steering gear (26). An improved shaft assembly (38) is utilized to transmit force between the steering gear (26) and the steering wheel (28). The shaft assembly (38) is connected with the steering wheel (28) through an upper universal joint (40). The shaft assembly (38) is connected with the steering gear (26) through a lower universal joint (42). The shaft assembly (38) includes a variable length portion (46) having upper and lower sections (48 and 52) which are disposed in a telescopic relationship. A connector assembly (54) interconnects an extension section (50) with the variable length portion (46) of a shaft assembly (38) when the upper and lower universal joints (40 and 42) are in a predetermined relationship.Type: GrantFiled: July 6, 1995Date of Patent: March 31, 1998Assignee: TRW Inc.Inventors: Philip S. Peterson, John A. Budzik
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Patent number: 5727653Abstract: A drive device for controlling the position of an actuator includes an electric motor for actuating the drive device. The motor is coupled to a gear mechanism and adapted to control the position of the actuator by selective operation thereof. A gear mechanism operatively coupled to the motor and to the actuator has a restoring spring and an auxiliary spring, each of which is tightenable to store energy therein by operation of the motor upon startup. In the event of a power loss to the motor, the gear mechanism operates to use the stored energy of the restoring spring to move the actuator to a preselected position. The stored energy of the auxiliary spring is used to counteract against moment of the motor at rest.Type: GrantFiled: March 13, 1996Date of Patent: March 17, 1998Assignee: Landis & Gyr Technology Innovation AGInventors: Christian Grossenbacher, Werner Studer
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Patent number: 5724856Abstract: In a shifter of a manual transmission, a rotationally and axially movable shifter shaft is provided with a plurality of coupling members that are immovable with respect to it. The members are staggered with respect to one another both axially and in the circumferential direction. A shift fork is used for actuation through a counter-coupling member associated with the fork.Type: GrantFiled: August 21, 1996Date of Patent: March 10, 1998Assignee: Daimler-Benz AGInventor: Ottmar Back