Adjustable Patents (Class 267/175)
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Patent number: 12128534Abstract: A torque tool has a handle, and a setting body rotatable about the longitudinal axis of the handle and lockable to the handle by a locking body having a switching ring. The switching ring is linearly displaceable relative to the locking body. A switching pin is provided on the switching ring, and supported on a control track in the setting body. Between the switching ring and the locking body, a locking disc and a spring element loading the locking disc are arranged. The locking disc has latching bodies interacting with latching receptacles in the handle. By rotating the locking body, the switching pin is moved along the control track causing an axial movement of the switching ring and the locking disc relative to the handle, to move the latching bodies out of, or into engagement with, the latching receptacles to unlock, or lock, the setting body.Type: GrantFiled: March 10, 2022Date of Patent: October 29, 2024Assignee: HAZET-WERK HERMANN ZERVER GMBH & CO. KGInventors: Patrick Klatt, Christian Ballsieper
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Patent number: 10724369Abstract: An improved pick and pick holder assembly for use in mineral winning and the like. The improved pick and pick holder increases the effective life of a tool and pick holder by minimizing the shifting of the pick within the pick holder. The movement of the pick is minimized by front and rear bearing surfaces that remain positively engaged with front and rear bearing surfaces of the pick holder for loads applied to the pick that are predominantly inward and predominantly rearward.Type: GrantFiled: June 18, 2014Date of Patent: July 28, 2020Assignee: ESCO GROUP LLCInventors: Roberto de Jesus Torres Delgado, William Stephen Clapham
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Patent number: 10047776Abstract: The disclosure relates to an anchor system having an internally threaded anchor and a bolt or shaft screwed together with said anchor for holding an add-on component in a hole that is pre-drilled into a wall made of concrete or brick work, characterized in that the bolt of shaft comprises a coil spring which is wound suitably to the inner thread of the internally threaded anchor and screwed into said inner thread.Type: GrantFiled: April 9, 2014Date of Patent: August 14, 2018Assignee: LUDWIG HETTICH HOLDING GMBH & CO KGInventor: Stefan Hettich
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Patent number: 9914335Abstract: A shock absorber is provided, including a base, a first axial tube, a second axial tube, a buffering structure and an abutting assembly. The base defines an axial direction, and the base has a through hole radially. An exterior circumferential wall of the first axial tube has a recess formed radially and near a first end of the base, and the first axial tube is screwed with the base. The abutting assembly includes an abutting member and an elastic abutting member, the abutting member is disposed within the through hole, the elastic abutting member is disposed on the base and at least partly located in the through hole so as to abut the abutting member to move toward the base normally.Type: GrantFiled: September 14, 2016Date of Patent: March 13, 2018Assignee: JIHSHYH INTERNATIONAL CO., LTD.Inventor: Wei-Li Lin
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Patent number: 8979080Abstract: Various technologies described herein pertain to an adjustable compliance apparatus. The adjustable compliance apparatus includes a shaft, a sleeve element, and a torsion spring. The sleeve element includes a bore there through, where the shaft is positioned through the bore of the sleeve element. Further, the torsion spring includes a plurality of coils, where the shaft is positioned through the plurality of coils. Moreover, the sleeve element is slidable in an axial direction along the shaft between the torsion spring and the shaft. Accordingly, compliance of the adjustable compliance apparatus is adjustable based on a number of the plurality of coils in contact with the sleeve element as positioned along the shaft within the torsion spring.Type: GrantFiled: June 18, 2012Date of Patent: March 17, 2015Assignee: Sandia CorporationInventor: Curt Michael Salisbury
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Patent number: 8702075Abstract: A unique, adjustable collar for a shock absorber coil-over spring is positioned on top of the coil-over spring and below the shock lock nut. The collar serves as a bearing that can be adjusted to increase or decrease the tension applied to the coil-over spring making for easier adjustments. The collar in the preferred form has eight (8) conical gears that mate with corresponding teeth in the top. The gears are turned clockwise or counterclockwise to respectively raise or lower the ride height of the vehicle. A typical one quarter inch (¼?) socket extension or similar tool can be used to turn the gears.Type: GrantFiled: February 3, 2009Date of Patent: April 22, 2014Inventor: Matthew C. Moorefield
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Patent number: 8616352Abstract: Provided is a height adjustable suspension unit that can smoothly lift and lower a vehicle body without the need to supply fluid to a shock absorber. The height adjustable suspension unit includes: a shock absorber S having a cylinder 1 and an extensible rod 2 disposed in the cylinder 1 to be able to advance and retract, the extensible rod 2 having an end portion that is coupled to a chassis X; a coil spring 4 mounted around the extensible rod 2, the coil spring 4 having a lower end supported on a spring base 3 that is attached to the upper end of the cylinder 1; and a lifting and lowering mechanism D including a gear mechanism A that is rotationally driven by a power source, a power conversion section B that converts power transmitted from the gear mechanism A into power to move the cylinder 1 up and down, and a guide section C that guides the up and down movement of the cylinder 1.Type: GrantFiled: November 17, 2009Date of Patent: December 31, 2013Assignee: ACC, Inc.Inventor: Hideyuki Hinouchi
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Patent number: 8590870Abstract: A retraction ball and a system made of a retraction ball and an elastic element for a hydrostatic piston machine is provided, having at least one recess for accommodating an elastic element, and at least one structural element being disposed in the recess for locking the elastic element.Type: GrantFiled: August 12, 2010Date of Patent: November 26, 2013Assignee: Robert Bosch GmbHInventor: Dino Mueller
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Patent number: 8475101Abstract: A locking screw for connecting two or more articles together is provided. The screw includes an externally threaded shaft, a head, and an elastic member. The head defines a chamber in which a spiral groove is defined. The shaft extends from the bottom of the chamber; and the elastic member is arranged around the shaft and one end of the elastic member is received in the spiral groove of the chamber and another end abuts against an article. The elastic member can be rotated around the longitudinal axis of the shaft, to change the length of the elastic member, so that enough tension is created to ensure locking the screw in place and prevent any rotation, thus maintain a tight engagement among the articles.Type: GrantFiled: October 31, 2010Date of Patent: July 2, 2013Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Peng-Yu Chen, Hung-Ti Su
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Patent number: 8474582Abstract: A cushion device includes a shock absorber and an accumulator. As a piston moves in a certain direction in a cylinder so that the shock absorber is compressed, oil in an oil chamber is discharged to the accumulator through an oil hose. The compression operation of the piston allows a slide member to slide and the capacity of an oil chamber is reduced. The oil in the oil chamber is discharged to a regulation unit through an oil hose. The regulation unit controls a valve by the pressure of the oil coming in from the oil chamber and applies resistance to the oil discharged from an oil chamber to an oil chamber.Type: GrantFiled: August 20, 2010Date of Patent: July 2, 2013Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Takamasa Kamioka
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Patent number: 8448962Abstract: Systems and methods provide variable spring stiffness for weight management in a vehicle. One system includes a plurality of springs and a plurality of spring retainers configured to adjust a number of inactive coils of the plurality of springs. Additionally, a motor is provided that is connected to the plurality of spring retainers and configured to actuate the spring retainers to adjust the number of inactive coils of the plurality of springs. Further, a controller is provided that is coupled to motor to control the motor to actuate the spring retainers to adjust the number of inactive coils of the plurality of springs.Type: GrantFiled: August 26, 2010Date of Patent: May 28, 2013Assignee: General Electric CompanyInventors: Amit Rajshekar Kalyani, Munishwar Ahuja, Anubhav Kumar, Ravi Kumar, Krishnarao Dhuri, Nikhil Subhashchandra Tambe
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Patent number: 8322695Abstract: The present invention is a mechanical element, commonly referred to as a “Jack Spring” that is based upon the concept of adding and subtracting coils from a spring. In particular, with the method and apparatus of the present invention, by changing the number of coils in a spring, the actual or intrinsic stiffness of the spring is structurally changed. A very simple and practical method is used to adjust the number of coils. The Jack Spring actuator of the present invention is based upon adjusting the effective structure of a spring.Type: GrantFiled: February 3, 2011Date of Patent: December 4, 2012Inventors: Thomas Sugar, Kevin Hollander
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Patent number: 8297600Abstract: A plastic spring having a corrugated tubular body with connection surfaces at its ends for transmitting force between two structural component parts which are movable relative to one another. A connection surface of the plastic spring is constructed as a tubular body which engages in a cup element of one of the supporting structural component parts. The cup element can be filled with a displacement mass, and the tubular body accordingly carries out a displacing movement within the cup element for axially adjusting the preloading of the plastic spring.Type: GrantFiled: September 9, 2010Date of Patent: October 30, 2012Assignees: ZF Friedrichshafen AG, Leichtbau-Zentrum Sachsen GmbHInventors: Hendrik Marquar, Manfred Schuler, Josef Renn, Klaus Stretz, Karin Sundermann, Michael Zutzmann, Werner Hufenbach, Martin Lepper, Jens Werner, Christian Köhler
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Patent number: 8262100Abstract: A vehicle height adjustment suspension device provides for both automatic and selective raising and lowering of a supported portion of a vehicle frame relative a ground surface, while also providing shock absorption. The device includes a suspension assembly for absorbing shocks mounted on a rotatable threaded screw connected to a motor and extending into the suspension assembly. The assembly may be extended and retracted on the screw by rotating the screw in first and second directions to raise and lower the supported portion while the shock absorber assembly simultaneously provides shock absorption capability.Type: GrantFiled: September 28, 2010Date of Patent: September 11, 2012Inventor: Georges Thomas
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Patent number: 8242399Abstract: An operating mechanism operates a multi-pole circuit breaker assembly. For each circuit breaker in the multi-pole circuit breaker assembly, the following elements are provided: a connection assembly for connection to an operating shaft of the circuit breaker, an actuator for changing between an ON and OFF state of the operating mechanism, a translation assembly for transferring a movement of the actuator to the connection assembly, and a compression spring exerting a force on the operating shaft in the ON state of the operating mechanism. The force exerted by the compression spring is adjustable by a force setting assembly in a continuous manner.Type: GrantFiled: September 11, 2008Date of Patent: August 14, 2012Assignee: Eaton Electric B.V.Inventors: Marcel Berend Paul van Dijk, Gerhardus Leonardus Nitert, Ronald Johannes Wilms
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Patent number: 8214184Abstract: A finite element analysis (FEA) based coil spring design method that utilizes a reverse engineering based concept. The method involves first designing a desired jounce profile, which is typically an output in the conventional FEA based design, and then reversely determining the corresponding free profile necessary for manufacturing a spring having desired performance specifications.Type: GrantFiled: October 19, 2007Date of Patent: July 3, 2012Assignee: NHK International Corp.Inventors: Shinichi Nishizawa, Tadashi Sakai
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Patent number: 8186489Abstract: In a pull arrangement including a housing with a guide structure movably supporting a carrier element which has a park position at one end of the guide structure and a rest position at the other end and a reversing structure is provided at the other end of the guide structure and a tension spring extending around the reversing structure is connected with one end to the carrier element and the opposite end to the housing for moving the carrier element to the end position, the tension spring comprises an area of high spring stiffness where it extends around the reversing structure and an area of low spring stiffness where the spring is connected to the housing away from the reversing structure.Type: GrantFiled: August 14, 2009Date of Patent: May 29, 2012Inventors: Günther Zimmer, Martin Zimmer
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Publication number: 20110260380Abstract: The present invention is a mechanical element, commonly referred to as a “Jack Spring” that is based upon the concept of adding and subtracting coils from a spring. In particular, with the method and apparatus of the present invention, by changing the number of coils in a spring, the actual or intrinsic stiffness of the spring is structurally changed. A very simple and practical method is used to adjust the number of coils. The Jack Spring actuator of the present invention is based upon adjusting the effective structure of a spring.Type: ApplicationFiled: February 3, 2011Publication date: October 27, 2011Inventors: Kevin Hollander, Thomas Sugar
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Patent number: 7992849Abstract: The present invention is a mechanical element, commonly referred to as a “Jack Spring” that is based upon the concept of adding and subtracting coils from a spring. In particular, with the method and apparatus of the present invention, by changing the number of coils in a spring, the actual or intrinsic stiffness of the spring is structurally changed. A very simple and practical method is used to adjust the number of coils. The Jack Spring actuator of the present invention is based upon adjusting the effective structure of a spring.Type: GrantFiled: September 21, 2005Date of Patent: August 9, 2011Inventors: Thomas Sugar, Kevin Hollander
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Patent number: 7922181Abstract: A first rotor (24; 124) and a second rotor (25; 125) are arranged in a coaxial and mutually rotatable relationship and are provided with a first driven gear (41; 141) and a second driven gear (42; 142), respectively. A drive shaft (31; 131) is also provided with a first drive gear (43; 143) and a second drive gear (44; 144) which are commonly connected to an output shaft of an electric motor (32; 132), and mesh with the first and second driven gears, respectively, at slightly different gear ratios. The first and second rotors are connected via a thread feed mechanism (36; 136) that converts a relative rotation between the first and second rotors into an axial linear movement between the first and second rotors that is used for changing a distance between a vehicle body part and a corresponding end of a suspension spring in a vehicle height adjusting system (9; 109).Type: GrantFiled: January 4, 2007Date of Patent: April 12, 2011Assignee: Honda Motor Co., Ltd.Inventors: Takehiko Hakui, Hajime Hirata, Hajime Kajiwara, Kiyoshi Nakajima, Yoshimitsu Akuta, Kunimichi Hatano
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Patent number: 7896321Abstract: A spring force adjusting device for a hydraulic shock absorber includes a cover (13) having a tubular shape, which is arranged on an outer side of a rod (12), a suspension spring (2) arranged on outer peripheries of a cylinder (11) and the cover (13), a cam mechanism (3) which adjusts a spring force, which is arranged on the outer periphery of the cover (13), a top cap (5) mounted on a tip of the rod (12), a junction member (4) sandwiched between the top cap (5) and the cover (13), and a means for preventing relative rotations of the top cap (5), the cover (13), and the junction member (4).Type: GrantFiled: September 19, 2006Date of Patent: March 1, 2011Assignee: Kayaba Industry Co., Ltd.Inventors: Yuji Nakashima, Masaru Mishima, Nobumichi Hanawa, Yasuhiro Kitamura
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Patent number: 7857325Abstract: A system for adjusting the height or spacing between the frame and axle of a vehicle. The system may operate by manipulating a suspension system connecting the frame to the axle and comprising shock assemblies. The system may include hydraulic spacers selectively changing in length in unison, thereby manipulating the equilibrium positions of the shock assemblies and changing the distance between the frame and axle. Between changes in length, the hydraulic spacers may act as a substantially rigid bodies.Type: GrantFiled: December 17, 2007Date of Patent: December 28, 2010Assignee: SRATS, Inc.Inventors: Charles R. Copsey, Curtis J. McNeil
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Patent number: 7784772Abstract: A spring system has a first pulling part with a first fastening element connected by a tension spring to a second pulling part with a second fastening element. The pulling parts are moveable relative to one another so as to increase or relieve stressing on the tension spring. A damping device damps the movement of the pulling parts in relation to one another. A cylinder is fastened on the first pulling part and a piston 3 is axially displacesably arranged therein, subdividing the interior of the cylinder into a first cylinder chamber and a second cylinder chamber. A piston rod connected to the piston is arranged on the second pulling part. The interior of the cylinder is connected to the surroundings via one or more restrictor openings.Type: GrantFiled: September 27, 2006Date of Patent: August 31, 2010Assignee: Stabilus GmbHInventors: Axel Knopp, Karl-Heinz Darscheid, Stefan Bonnekessel, Rainer Massmann, Rolf Mintgen, Torsten Rickenberg, Jörg-Erwin Scheuer, Dirk Schweinberger, Daniel Herbst, Joachim Völlinger
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Patent number: 7784800Abstract: A height adjustment on a wheel suspension for motor vehicles, having a shock absorber which has a piston rod, which shock absorber is dynamically connected to the vehicle body, and to which shock absorber a helical spring is coaxially assigned which is clamped between two spring plates that can be changed in their active distance and that determine the spring deflection and rebound path relative to a normal level, the body-side end of the shock absorber being assigned a shock absorber cap which influences the free spring path “s” of the helical spring and which is made adjustable at the same time with the adjustable spring plate.Type: GrantFiled: December 3, 2008Date of Patent: August 31, 2010Assignee: Audi AGInventor: Wifried Michel
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Publication number: 20100175977Abstract: A flexible joint may include a conductive compression spring and a pair of non-conductive spring cages disposed at opposite ends of the compression spring to support the compression spring. A conductive member disposed inside the compression spring may extend between the pair of spring cages. One end of the conductive member may be fixed for movement with one of the spring cages and another end of the conductive member may be fixed for movement with the other of the spring cages.Type: ApplicationFiled: January 13, 2009Publication date: July 15, 2010Applicant: National Aeronautics and Space AdministrationInventors: Peter M. Phelps, Bryan W. Gaither
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Patent number: 7677540Abstract: A mechanism for converting the force from a linear extension spring into a constant force. A cable, connected to the spring, rides in a variable radius input pulley groove. A second cable rides in a variable radius output pulley groove. The dual pulley mechanism is smaller than previous spiral pulley mechanisms. The output force and stroke is a function of the sizes of both pulleys. A standardized design enables a small number of input and output pulleys to cover a large range of applications. An end plug in a helical spring can be used to make fine adjustments to the output force. The pulleys can be accurately phased relative to each other with a spline mechanism. The pulley grooves may lie in a plane, or they may advance in an axial direction as the pulley rotates. By continuously varying the rate of axial advance, the tangent to the groove can be aimed or focused at an external point. The focused groove reduces cable friction and wear.Type: GrantFiled: April 2, 2004Date of Patent: March 16, 2010Inventor: Eugene F. Duval
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Patent number: 7270320Abstract: An antivibration element (1) is especially for a portable handheld work apparatus such as a motor-driven chain saw or a brushcutter. The antivibration element includes a coil spring (2) and at least one guide. An end section (7, 8) of the coil spring (2) is fixed to the guide. In order to provide a progressive characteristic line of the coil spring (2) in a simple way, the coil spring (2) has a transition section (11, 12), which borders at the end section (7, 8) and is guided with play on the guide. When the coil spring is under load, the turns of the transition section come at least in part into contact engagement with a helically-shaped slot in the guide so that the spring stiffness of the antivibration unit increases.Type: GrantFiled: July 30, 2003Date of Patent: September 18, 2007Assignee: Andreas Stihl AG & Co. KGInventors: Johannes Menzel, Günter Wolf, Helmut Lux, Jens Kutzbach
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Publication number: 20070182078Abstract: This invention relates to a support or hanger utilizing a conical washer spring or set of conical washer springs displaying variable load characteristics. When installed, both types (support or hanger) allow for small movements in pipe, ductwork or equipment (PDE), thus, allowing for the thermal growth of PDE. Conventionally, helical coil spring supports are chosen to meet the load capacities of PDE but are reluctantly used because of their large size. By using conical washer springs, the size of the support is substantially reduced making it a more useable device. A smaller, more compact design proves to increase the support/hanger's application making it more stable to place under piping and even under reciprocating motion equipment like generators and pumps. For small displacements, it is found that this invention behaves in the same manor as a conventional helical coil spring support under the same applied loads.Type: ApplicationFiled: February 5, 2007Publication date: August 9, 2007Inventors: Kirk V. Leonardi, Bharat Vallabhdas Makadia, Klaus Peter Remann, James Octavius Taylor
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Patent number: 7080829Abstract: The invention relates to a device for holding one end of a helical spring and adjusting the tension of the spring. It comprises a plate (P1) provided with two series of holes (12, 13) spaced apart by a distance approximately equal to the diameter of the turns of the spring. The holes of one series are offset with respect to those of the other series. The plate (P1) is provided with a gripping and holding device (5, 8). The gripping and holding device comprises a threaded rod (5), one end of which is provided with a holding means (8). The threaded rod (5) engages in a tapped hole (15) integral with said plate (P1). A half-cylindrical wall (11) permits the passage of the threaded rod (5).Type: GrantFiled: August 4, 2004Date of Patent: July 25, 2006Assignee: Mantion S.A.Inventor: Claude Requet
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Patent number: 7029044Abstract: An impact absorbing device for a vehicle uses a shape memory material that can be heated to repair deformation from a relatively low speed, low energy impact and its stroking force and energy absorption can be tuned by heating. The shape memory material is suitably used in a crash box having an inserted impact absorbing ram, the box being placed, for example, between a bumper and strong body member. The shape memory material is attached to the box and ram for absorbing energy as the ram is driven into the box. Electric resistance heating may be used to repair or tune the shape memory material.Type: GrantFiled: November 18, 2003Date of Patent: April 18, 2006Assignee: General Motors CorporationInventors: Alan L. Browne, Nancy L. Johnson, Mark A. Kramarczyk
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Patent number: 7025343Abstract: In an adjusting method for remedying the coil pitch tolerance and fatigue deformation of an adjustable helical spring, an adjusting mechanism is mounted at one end of the casing for the adjustable helical spring for changing the precompression or the pretension of the helical spring to thereby remedy the coil pitch tolerance and fatigue deformation thereof, and rotating a rotatable element mounted in the casing and connected to one end of the helical spring, so that the helical spring is adjusted to a preset number of effective turns, and then the precompression or the pretension of the helical spring is adjusted. The adjusting method not only solves the problem of coil pitch tolerance and fatigue deformation existed in the adjustable helical spring, but also reduces noises produced by the adjustable helical spring in use.Type: GrantFiled: December 23, 2004Date of Patent: April 11, 2006Inventor: Cheng-Ming Chou
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Patent number: 6902045Abstract: A vehicle suspension system comprising a damper having a lower mount end and an upper mount end and a spring having a lower end and an upper end positioned around the damper. The spring and the damper have a common central axis. An adjustment assembly is operably attached at the lower mount end of the damper and the lower end of the spring is operably attached to and supported by the adjustment assembly thereby allowing the position of the lower end of the spring to continuously vary along the central axis of the damper. The method comprising supporting a lower end of a spring positioned around a damper and moving the end of the spring for adjusting vehicle ride height.Type: GrantFiled: April 3, 2003Date of Patent: June 7, 2005Assignee: Delphi Technologies, Inc.Inventors: Michael L. Oliver, William C. Kruckemeyer
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Patent number: 6877591Abstract: A crank of a shock absorber for a bicycle has two ends respectively pivotally connected with a bicycle frame and a rear shock absorber, having a round hole and a disc fitted in the round hole, a rear bearing hole, a narrow groove communicating with the round hole and the rear bearing hole, a nut at one side of the groove and a bolt extending from outside through the groove to screw with the nut, the disc having an eccentric hole; a rear shock absorber has a pivot base to face the eccentric hole for a micro-adjusting rod to extend therein stably. Then the micro-adjusting rod is rotated for an angle to alter the angle of the shock absorber relative to the bicycle frame, so a user can adjust elastic force of the shock absorber according to the capability, the body weight and road conditions.Type: GrantFiled: November 17, 2003Date of Patent: April 12, 2005Inventor: Yung-Feng Hso
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Patent number: 6857625Abstract: The invention relates to a spring carrier for the chassis of a motor vehicle. Said carrier is used to support a coil spring (1) which is braced between two spring plates (2, 3). At least one of said spring plates (2) can be axially adjusted by means of a drive unit comprising a gearbox and an electric motor. Preferably, at least one part of the piston rod (6) and/or the shock-absorber tube (5) of a shock-absorber or a suspension strut is arranged inside the coil spring (1). The aim of the invention is to develop one such spring carrier in such a way that the distance between the upper spring end and the vehicle body can be kept small in a cost-effective manner. To this end, the electric motor is embodied in the form of a ring motor having an external stator (15) and an internal rotor (16) which comprises a displacement nut on its inner side, said displacement nut axially displacing a spring plate carrier (21) connected to the spring plate (2) and externally embodied as a threaded spindle.Type: GrantFiled: December 15, 2001Date of Patent: February 22, 2005Assignee: ThyssenKrupp Automotive AGInventors: Friedrich Löser, Siegfried Ellmann
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Patent number: 6758523Abstract: A method of installing a spring into a chair and a chair with a preload member that prevents a user from removing an initial stress from the spring. The method includes positioning a spring guide in a first position and installing the spring into the chair in an unstressed state. The spring is then stressed by adjusting the spring guide away from the first position. When the spring has been stressed to at least the desired initial stress, the preload member is positioned to prevent the spring guide from being adjusted back to the first position.Type: GrantFiled: May 15, 2001Date of Patent: July 6, 2004Assignee: Herman Miller, Inc.Inventors: Douglas M. VanDeRiet, Jeffrey R. Oberlin
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Patent number: 6676118Abstract: An adjustable casing for helical spring mainly includes a male and a female case, and a rotation member. A helical spring is enclosed in the casing with an end of fixedly connected to a fixing seat provided at a bottom center of the female case, and another end located in the male case. The rotation member is provided around an outer or an inner surface with a plurality of stoppers that are adapted to engage with coils of the helical spring. When the rotation member is rotated, the number of active coils of the spring subjected to a compressing or a stretching force is changed, and the modulus of elasticity of the helical spring is adjusted, accordingly. The helical spring mounted in the adjustable casing may have higher flexibility in its usage to meet requirements of different machines.Type: GrantFiled: August 13, 2001Date of Patent: January 13, 2004Inventor: Cheng-Ming Chou
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Patent number: 6508461Abstract: Disclosed herein is an improved arrangement for the operation of an overhead garage door that comprises an adapter utilized for installation and periodic maintenance of the support arrangement. Also disclosed is an adapter for use with existing garage door structures, improved wrenches for use in tensioning coil springs usually found in such arrangements and a method for tensioning such coil springs when they are originally installed or during periodic maintenance of the springs. The adapter comprises a body that may be mounted upon a rotatable shaft that supports the coil springs and be non-rotatabley attached to an end of the coil spring and the rotatable shaft. The attachment to the shaft is a releasable connection and the body has splines or projecting abutment surfaces so that two of the improved wrenches according to the present invention may have their jaws closely surround and engage the splines on the body.Type: GrantFiled: January 12, 1998Date of Patent: January 21, 2003Assignee: Safe Ratch, Inc.Inventors: Thomas P Trevorrow, Ben D. Yoder, Albert E Zuccolotto, Thomas P Trevorrow, Jr.
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Patent number: 6471197Abstract: The invention relates to a spring device in a shock absorber having an adjusting mechanism (18; 52).Type: GrantFiled: February 22, 2000Date of Patent: October 29, 2002Assignee: Denk Engineering GmbHInventors: Peter Denk, Wolfgang Ebersbach
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Patent number: 6343807Abstract: A suspension fork for cycles includes an operating device mounted externally on a telescopic fork leg that permits the rider to selectively shorten or lengthen the extent of relative travel between the inner and outer tubular sections of the fork. Preferably, an operating knob or lever is coupled with a rotary cylinder contained within the hollow compression rod by a torsion overload spring, thereby to displace a stop dog between extended and retracted positions relative to the compression rod via a slot contained in the compression rod wall.Type: GrantFiled: January 19, 2001Date of Patent: February 5, 2002Assignee: Answer Products, Inc.Inventor: James C. Rathbun
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Patent number: 6293533Abstract: A dashpot for wheel suspensions, with a preferably sheet-metal spring cup (6). The cup is attached to a shock absorber or its accommodating tube, supports a helical spring that surrounds the shock absorber or tube, and can be advanced along the shock absorber or tube on threads. To allow the dashpot to be raised and lowered in precise increments, the attachment is maintained tight by a cylindrical housing (3). The housing is provided with a slot extending over its total length and with outside threads. Its inner surface of the housing rests directly against the shock absorber or its tube. The housing operates in conjunction with a height-adjustment ring (12) or neck (7) with matching inside threads on the spring cup. The slope of the threads ensure that the force exerted by the spring on the spring cup will squeeze the slotted housing together radially.Type: GrantFiled: September 28, 2000Date of Patent: September 25, 2001Assignee: Krupp Bilstein GmbHInventor: Thomas Sasse
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Patent number: 6155545Abstract: The shock absorber includes an oil pressure damper (1), a piston rod (2) and a cushion spring (3), wherein the cushion spring (3) contacts to the piston rod side with an end thereof and another end (6) thereof contacts to a spring receiving face (8) of a spring seat (7). Since the spring seat (7) is integrated with an adjuster (10) by engaging claws (9) with the adjuster (10) and is also integrated with a movable cover (20), the spring seat (7), the adjuster (10) and the movable cover (20) rotate and move to an axial direction as one body.Type: GrantFiled: December 10, 1998Date of Patent: December 5, 2000Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hirofumi Noro, Osamu Sato, Shigeo Iijima, Terunari Saiki, Mitsuru Minami, Masakazu Kuwahara
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Patent number: 6095541Abstract: A suspension system for a bicycle or other vehicle or apparatus, the system including at least one telescoping strut comprising a first telescoping member and a second telescoping member, the first and second telescoping members being telescopingly and coaxially engaged with each other so that the strut is compressible by relative movement of the telescoping members toward each other and expandable by relative movement of the telescoping members away from each other. A piston may be interconnected with the second telescoping member and slidably positioned within the first telescoping member. The piston separates a primary compression spring chamber into two gas chambers connected by an adjustable port, whereby compression or expansion of the strut creates a damping force that resists such relative movement of the telescoping members, resulting in the primary compression spring having a frequency-sensitive spring rate.Type: GrantFiled: February 4, 1998Date of Patent: August 1, 2000Assignee: RockShox, Inc.Inventors: Paul H. Turner, Michael L. McAndrews, Ricardo R. Baldomero
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Patent number: 6067000Abstract: An electromagnetic actuator 10 includes housing structure 12, first and second electromagnets 14 and 16 disposed in spaced relation in the housing structure, an armature 24 mounted for reciprocal movement between the electromagnets, and a spring assembly 11 operatively associated with the armature 24. The spring assembly includes a coil spring 30, a spring retainer 32 carrying the coil spring and being constructed and arranged to contact the armature 24, a spring adjusting member 38 engaged with a bore in the housing structure 12 and engaging the spring 30 so as to control compression of the spring associated with a set position of the armature 24 between the electromagnets. At least one cap screw 50 extends from a surface of the housing structure generally adjacent to the bore. A locking member 56 is engaged with the spring adjusting member 38 and with the cap screw 50.Type: GrantFiled: January 21, 1999Date of Patent: May 23, 2000Assignee: Siemens Automotive CorporationInventors: Dennis Bulgatz, Timothy S. Roach
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Patent number: 6026755Abstract: A counterbalance apparatus (10) for use in moving a work surface (102) is described. The apparatus includes an upper, lower and center member (12, 14 and 24), a pair of inner and outer cam surfaces (20, 22 and 26) and a pair of inner and outer cam followers (58, 60 and 62). The outer cam surfaces are located on the lower member. The inner cam surfaces are located on the center member. The lower member is telescopingly mounted within the upper member. The top (24A) of the center member is connected to the top (12A) of the upper member. One end of the springs (46 and 47) is mounted in the bracket (48) which is connected by connector arms (50 and 52) to the cam followers. The other end of the spring is adjacent the top of the upper member and the center member. In use, as a force is applied to move the work surface in a given direction, the center member moves into or out of the lower member.Type: GrantFiled: February 13, 1998Date of Patent: February 22, 2000Inventor: Dennis L. Long
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Patent number: 5954318Abstract: An adjustable coil over suspension assembly (10) for use in high-performance racing vehicles is provided which includes a central, telescopically intermitted suspension assembly (20) with an elongated coil spring (22) disposed over the assembly (20) and extending along the length thereof. Spring adjusting means (24) is provided for selective adjustment of the compression of spring (22) and includes a threadably mounted body (46) bearing against one end of the spring (22) and carrying a detent device (36, 56) for permitting rotation of the body (46) through a predetermined arc with seating of the body (46) after each such rotation. Accurate adjustment of the assembly (10) is assured because the operator can readily determine through perceptible "clicks" the degree of spring compression change during rotation of the body (46).Type: GrantFiled: May 1, 1997Date of Patent: September 21, 1999Assignee: Kluhsman Machine, Inc.Inventor: Melvin L. Kluhsman
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Patent number: 5848799Abstract: A fork blade packing structure including a socket mounted in a bicycle fork blade at the top, a push block threaded onto a screw rod in the bicycle fork blade and supported on a spiral spring therein and moved vertically to adjust the spring force of the spiral spring, a connector mounted within the socket and having a threaded bottom end threaded into a top center screw hole on the push block and a top end extended out of socket through a hole thereof, a knob fixedly fastened to the top end of the connector outside the socket and adapted for turning the connector by a hand tool to force the push block upwards or downwards, and a guide wire mounted in an annular groove around the socket and having a guide top inserted through a radial through hole in the socket into a longitudinal sliding groove on the push block for guiding the movement of the push block.Type: GrantFiled: March 26, 1997Date of Patent: December 15, 1998Inventor: Su-We Huan
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Patent number: 5689916Abstract: A window, particularly for installation in an inclined roof surface, comprising a main frame and a frame hinged to the top thereof as well as a frame lifting arm inserted between the main frame and the frame, the arm having one end pivotally connected with a lateral member of the main frame or the frame and its other end pivotally connected with a slide shoe which in a longitudinally displaceable manner is connected with the corresponding lateral member of the main frame or the frame, respectively. The slide shoe is associated with a pre-stressed lifting spring, as a first coupling first coupling member on the slide shoe is adapted to engage with a second coupling member connected with the lifting spring when installing the window.Type: GrantFiled: May 31, 1996Date of Patent: November 25, 1997Assignee: V, Kann Rasmussen Industri A/SInventors: Jan Fahlen Jensen, Klaus Kornerup
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Patent number: 5564537Abstract: A passive/adaptive vibration control system is provided wherein various elements of the system may be adapted on-line in response to sensed vibrations. A spring/mass vibration absorber is attached to a vibrating body to absorb energy generated by that body, to minimize the transmission of vibrations to a structure in mechanical communication with the vibrating body. In one embodiment of the present invention, the mass of the vibration absorber may be adjusted, on-line, to compensate for sensed vibrations. A vibration sensor is connected to either the vibrating body or the attached structure so as to sense the level of vibration above a desired level and to send a signal representative of that vibration to an electronic controller. The electronic controller is designed to instruct the actuator to adapt the mass to compensate for the sensed vibration.Type: GrantFiled: April 4, 1994Date of Patent: October 15, 1996Assignee: Cooper Tire & Rubber CompanyInventor: Rahmat A. Shoureshi
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Patent number: 5553713Abstract: A vibration damper assembly having a spring support. The spring support comprises a first support with a spring plate and a second support with a spring plate, whereby at least one spring plate is axially adjustable, so that the spring tension of a spring between the spring plates can be changed, the spring support also a comprising locking device which is active between the adjustable spring plate and the corresponding support, characterized by the fact that the locking device is loosened for the axial adjustment of the spring plate so that during the axial adjustment, the spring plate can be moved independently of the locking means from any desired position into another position without twisting, and the locking device is held in this position.Type: GrantFiled: November 23, 1994Date of Patent: September 10, 1996Assignee: Fichtel & Sachs AGInventors: Heinz Sydekum, Manfred Angles, Frank Hassmann
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Patent number: 5551674Abstract: A resilient support device for installation on seat or wheel fork supports of light vehicles, such as bicycles or motorcycles, for the comfort of the rider. The invention achieves arbitrary and discretionary adjustment of support stiffness with a high degree of variability to accommodate riders over a wide range of weight and road conditions from mild to rough. Novel mechanical configurations are disclosed for ease of adjustment over the range of operation.Type: GrantFiled: July 6, 1994Date of Patent: September 3, 1996Inventor: Thore K. Johnsen