Coil Patents (Class 267/155)
  • Patent number: 10197368
    Abstract: An auxiliary cutting implement for attachment between a broadhead and arrow shaft includes preferably two or more coils each having two cutting edges formed along their opposite elongated side edges. As the coils pass through the animal they unroll and slice through animal flesh in all directions. The coils are biased toward their rolled position which increases the multi-directional movement of the coil and cutting edges through the animal resulting in a large cutting area and fast kill as compared to the broadhead alone.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: February 5, 2019
    Inventor: David Lathrop
  • Patent number: 10138677
    Abstract: A torsion assembly has a connection member and a torsion spring. The connection member has a connection segment and a holding protrusion. The connection segment has a connection hole. The holding protrusion is formed in the connection hole. The torsion spring has a spring body and a connection leg. The connection leg is connected with the connection segment of the connection member, and has a rod segment, a bent segment, and a hook segment. The connection leg is kept from escaping out of the connection hole by the holding protrusion.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: November 27, 2018
    Assignee: MACAUTO INDUSTRIAL CO., LTD.
    Inventors: Paul Lin, Hung-Ming Yen
  • Patent number: 10094450
    Abstract: A tensioner uses a low rate torsion spring in a first stage and a high rate torsion spring in a second stage to maintain tension in a chain or belt. The first stage is connected to the second stage by a torque coupling. The high rate torsion spring is maintained in an energized state between a ground and a dead stop to store energy and to provide tension under high loads. In some embodiments, the torque coupling is a damper. In other embodiments, the torque coupling is a clutch. A method stores energy in a high rate torsion spring of a tensioner.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: October 9, 2018
    Assignee: BorgWarner Inc.
    Inventors: Sean R. Simmons, Simon Barrette
  • Patent number: 9782819
    Abstract: A method includes a spiral forming step causing a substantially linear elongated member, conveyed toward one side in a longitudinal direction of the elongated member by a pair of conveying rollers, to be engaged at one side in a second direction with a pressing member movable in the second direction so that a spiral body including the fixed coil part, the first movable coil part and the second movable coil part is formed from the linear elongated member. The spiral forming step is configured to control the position of the pressing member with respect to the second direction, based on a signal from a rotational speed sensor detecting the rotational speed of the conveying roller, a relationship between a position in the longitudinal direction of the elongated member that is engaged with the pressing member and the position in the circumferential direction after the spiral body is formed.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: October 10, 2017
    Assignee: Suncall Corporation
    Inventors: Ryuji Kishihara, Naoya Wada, Keiichiro Teratoko
  • Patent number: 9777807
    Abstract: A tensioning device comprising a receiver housing, a lever arm mounted on the receiver housing and rotatable with respect to the receiver housing around a first rotation axis, a pulley mounted on the lever arm and rotatable with respect to the lever arm around a second rotation axis parallel to the first rotation axis, and a spring mounted between the receiver housing and the lever arm and adapted to apply a torque for rotating the lever arm around the first rotation axis. The receiver housing and the lever arm are screwed together around the first rotation axis. The spring applies an axial damping effort, parallel to the first axis, on cooperating threaded portions respectively provided on the receiver housing and on the lever arm.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: October 3, 2017
    Assignee: AKTIEBOLAGET SKF
    Inventors: Jeremie Barillet, Laurent Cherioux, Christophe Daubignard, Tony Gaudrier, Pascal Mauroy, Thierry Prouteau, Sebastien Schultz, Philippe Weber
  • Patent number: 9434253
    Abstract: A damper restricts pivot pin rotation associated with operation of an operating section, wherein friction resistance that impedes the pivot pin rotation is changed in stepped fashion. When the pivot pin rotates in direction ? due to depression of an accelerator pedal, a slide cam shifts an edge section of an inclined cam surface away from a rotating cam while staying in contact with a gradual first inclined region of the rotating cam's inclined cam surface. Torque around the axis of the pivot pin is produced, the entire region of the slide cam's inclined cam surface comes into contact with a steep second inclined region of the rotating cam's inclined cam surface upon accelerator pedal depression to a prescribed position (the pivot pin has rotated by a prescribed angle ?1 in direction ?), and the torque around the axis of the pivot pin rapidly increases.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: September 6, 2016
    Assignee: OILES CORPORATION
    Inventors: Hideto Arigaya, Katsutoshi Kumazawa, Kentaro Yamauchi, Daisuke Yoshimoto
  • Patent number: 9394127
    Abstract: A low profile, alignment assembly for a media feed roll assembly using torsion spring biasing. The alignment assembly has a first and a second spaced bushings mountable to a frame. Each bushing has a circular collar and a cradle positioned along a common centerline for rotatably holding a driven first and an opposed second shaft on the common centerline. A first and a second torsion spring mount around the second shaft adjacent to the first and second bushing, respectively, and each has a pair of legs extending tangentially therefrom, attachable to the frame or respective bushing and forming a substantially planar profile. Each torsion spring biases the second shaft toward the first shaft along the common centerline and, as a media sheet moves between the first and second shafts, allows the second shaft to move within the cradles radially away from the first shaft along the common centerline.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: July 19, 2016
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Adam Thomas Manor, Daniel George Mlejnek
  • Patent number: 9371955
    Abstract: A tilt mechanism for an electronic display including a torsion spring, the torsion spring providing a spring torque to balance a monitor torque due to weight of the monitor. The tilt mechanism allowing an electronic display to be positioned at a variety of tilt angles within a range of tilt angles. Such a tilt mechanism allowing an electronic display to be positioned at positive and negative tilt angles within the range of tilt angles. Methods of using a tilt mechanism.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: June 21, 2016
    Assignee: Ergotron, Inc.
    Inventors: Xiao long Fu, Shaun C. Lindblad
  • Patent number: 9261152
    Abstract: A spreader spring comprising: (a) a locking arm that connects the spreader spring to a brake component; (b) a retraction arm; and (c) a bias device located between the locking arm and the retraction arm; wherein the bias device includes six helical loops or more that store energy during a brake apply and once the brake apply is complete assist in retracting a brake pad.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: February 16, 2016
    Assignee: AKEBONO BRAKE CORPORATION
    Inventors: Kenneth Eric Gutelius, Muhammad Farooq
  • Patent number: 9176516
    Abstract: A dual stage accelerator pedal spring assembly is provided that allows the transition point between stroke stages to be adjusted in order to control pedal travel within the first stroke stage and provide the driver with a customizable accelerator pedal interface. The spring assembly, which uses two springs exhibiting different spring force, allows adjustment of the relative positions of the two springs in order to control the transition point between the first and second pedal stroke stages.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: November 3, 2015
    Assignee: Atieva, Inc.
    Inventor: Jean-Philippe Gauthier
  • Patent number: 9079492
    Abstract: An accelerator pedal device having a pedal arm working in conjunction with an accelerating pedal, a housing to rotatably support the pedal arm around a prescribed pivot axis line between a rest position and a maximum applied position, a hysteresis generation mechanism that comes in contact with the vicinity of an upper end of the pedal arm to generate hysteresis in a pedal force of the accelerator pedal, and an active control mechanism to push back the pedal arm toward the rest position under prescribed conditions between the pivot axis line and the hysteresis generation mechanism. The active control mechanism includes a drive source provided in the housing, and a return lever that is rotated in the same direction as the direction of the swinging of the pedal arm in conjunction with the drive source and is detachably engaged with the vicinity of the upper end of the pedal arm.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: July 14, 2015
    Assignees: MIKUNI CORPORATION, NISSAN MOTOR CO., LTD.
    Inventors: Tsuyoshi Osawa, Masato Kumamoto, Kouji Kikuchi, Tsuyoshi Shimizu, Hisashi Kawade, Hiromutsu Touhachi
  • Publication number: 20150143751
    Abstract: A spring hook structure includes: a torsion coil spring including a coil portion and a first arm and a second arm extending from each side of the coil portion; and a rotation support pin by which a cap is rotatably supported on an exterior case. The rotation support pin is inserted into the coil portion. The first arm is hooked on a first hook surface of the exterior case, and the second arm is hooked on a second hook surface of the cap. At least one of the exterior case and the cap is provided with a regulation wall at a position not interfering with the arm moving along the hook surface due to flexural deformation of the coil portion but interfering with the arm moving along the hook surface due to flexural deformation of the arm.
    Type: Application
    Filed: February 2, 2015
    Publication date: May 28, 2015
    Applicant: YAZAKI CORPORATION
    Inventors: Tsutomu SAWADA, Norihisa YAMADA, Takashi TSUKAMOTO
  • Patent number: 8925908
    Abstract: A spring (10), for a locking device of a vehicle seat, is designed as a yoke spring defining an axis (A) and made of a spring wire. A cross section diameter (q) has one leg (10a) on each of both ends of the spring wire. The two legs (10a) can pivot relative to each other in a circumferential direction of the axis (A), thereby transitioning the spring (10) from a relaxed state into a tensioned state. At least one first winding (10b) is provided between the legs (10a) that is wound completely around the axis (A) and having a winding diameter (di) in the relaxed state. At least one adjacent second winding (10b) is provided between the legs (10a) and disposed offset along by the axis (A) by a pitch (h), wherein the second winding (10b) may optionally be wound not fully about the axis (A). The second winding (10b) has a winding diameter (d2) in the relaxed state. The pitch (h) is less than the cross section diameter (q).
    Type: Grant
    Filed: December 5, 2009
    Date of Patent: January 6, 2015
    Assignee: Johnson Controls Components GmbH & Co. KG.
    Inventors: Peter Müller, Volker Windecker
  • Patent number: 8777194
    Abstract: An object of the present invention is to provide a spiral spring assembly that is capable of suppressing lateral force generated in a central shaft. A spiral spring assembly (1) includes a central shaft (2), a spiral spring (3) that is disposed on the periphery of the central shaft (2) and includes an outer end (3a), an inner end (3b), and a spiral portion (3c) that connects the outer end (3a) and the inner end (3b) in a spiral form; an inner end fixing member (4) to which the inner end (3b) is fixed so as to be capable of transmitting torque; and an outer end fixing member (5) to which the outer end (3a) is fixed, and which is capable of moving relative to the inner end fixing member (4) within a predetermined section extending from a first state to a second state. The outer end (3a) is fixed to the outer end fixing member (5) so as to be capable of transmitting torque and suppressing a lateral force that is generated in the central shaft (2) in a predetermined state within the predetermined section.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: July 15, 2014
    Assignee: Chuo Hatsujo Kabushiki Kaisha
    Inventors: Shinsuke Okura, Toshihiro Suzuki, Itsuo Kojima
  • Patent number: 8650702
    Abstract: A spring for windshield wiper assemblies is comprised of a resilient rod having a plurality of sections adapted to removably attach to a windshield wiper assembly of a vehicle. The rod includes a first hook section at one end section thereof; a second hook section located at an opposite end section thereof. An intermediate coiled section attached to and located adjacent the first hook section, and a connector section defining an axis along its length and connected between the intermediate coiled section and the second hook section.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: February 18, 2014
    Inventor: Jean Koch
  • Patent number: 8596299
    Abstract: An externally mounted mechanical device for mechanically closing a pressurized tank or cylinder valve, such as a grill tank, is provided. The device comprises a securing mechanism, a rotatable mechanism having a handle recess to receive a handle of pressurized tank or cylinder valve, and a torsional spring, wherein the torsional spring is configured to store potential torsional force and then release the torsional force by way of a timed release mechanism. The mechanical device comprises a securing device for securing the mechanical device to a tank or cylinder. Torsional force may be stored in torsional spring by way of a ratchet and pawl that also is configured to release the stored torsional force by way of a timed release.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: December 3, 2013
    Assignee: Turtle Industries, LLC
    Inventors: Ajay Patel, Alan Kenyon, Arvind A. Patel
  • Publication number: 20130284147
    Abstract: A helical torsion return spring and a throttle body assembly for urging a throttle plate of a throttle body assembly to a default position when a throttle motor of the throttle body assembly is disabled. The return spring includes a middle portion, a first end portion, a second end portion, a first spring leg, and a second spring leg. The throttle body assembly includes a throttle shaft, a first bushing, a second bushing, and the spring defined above. A first end portion center axis defined by the first end portion and a second end portion center axis defined by the second end portion are offset from a middle portion center axis defined by the middle portion.
    Type: Application
    Filed: April 26, 2012
    Publication date: October 31, 2013
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventor: FRANK A. NICHOLAS
  • Publication number: 20130283620
    Abstract: A modular spring assembly configured for interconnection with a folding tool is provided. The modular spring assembly may be positioned coaxially with a pivot axis of the folding tool and interconnected to the folding tool. In one embodiment, the modular spring assembly includes a cup and a torsion spring.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 31, 2013
    Applicant: SPYDERCO, INC.
    Inventor: Douglas S. Snyder
  • Publication number: 20130233113
    Abstract: A combination torsion spring is configured such that a predetermined reaction force is generated in a coil circumferential direction without a center of a wound coil tilting even when applied with a load. A first torsion spring and a second torsion spring of the combination torsion spring are each provided with a coil. Each coil is formed by spirally winding a copper wire in a different winding direction from one another. The inner diameter of the coil of the first torsion spring is approximately the same as the outer diameter of the coil of the second torsion spring. In the combination torsion spring, the coil of the second torsion spring is inserted into the coil of the first torsion spring.
    Type: Application
    Filed: November 21, 2011
    Publication date: September 12, 2013
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Tetsushi Saitoh
  • Patent number: 8528706
    Abstract: A motor with a braking mechanism for an actuator includes a main body, a rotating shaft and a braking mechanism. The rotating shaft is disposed through the center of the main body. The braking mechanism includes a friction element and a torsion spring, the friction element is arranged on the external periphery of the rotating shaft, and the torsion spring is elastically clamped at an outer edge of the friction element and an end of the torsion spring is fixed to main body. When the rotating shaft rotates in one direction, the torsion spring abuts the friction element to brake and decelerate the rotating shaft. With small wear and tear of the torsion spring, the service life can be extended. With a large contact area between the friction element and the rotating shaft, a good braking effect can be achieved.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: September 10, 2013
    Assignee: Timotion Technology Co., Ltd.
    Inventor: Chou-Hsin Wu
  • Publication number: 20130104343
    Abstract: A folding device includes a main body, a cover, and a torsion spring. The cover is rotatably connected to the main body and capable of covering the main body, the cover comprising a supporting member. The torsion spring renders the cover spring-loaded, to rotate the cover open from the main body. The torsion spring includes a coil, a first arm and a second arm. The first arm includes a first portion extending from one end of the coil along a first direction that is perpendicular to an axis of the coil; and a second portion extending from the end of the first portion along a second direction different from the first direction. The first portion and the second portion support the supporting member from different positions and different lengths when the cover is opened. The second arm restricts against the main body.
    Type: Application
    Filed: June 19, 2012
    Publication date: May 2, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: NA WANG, YUN WANG, YUAN-MING WANG, JIAN-YONG YANG
  • Patent number: 8419573
    Abstract: A bicycle rear derailleur includes a stationary member, a base member, a linkage mechanism, a movable member, a chain guide and an inner cable fixing portion. The stationary member non-movably attached to a bicycle frame and includes an outer cable receiving portion configured to receive an outer sheath of a control cable assembly. The base member is pivotally coupled to the stationary member about an axis spaced apart from a hub axis of a rear wheel. A movable member at one end of the linkage mechanism is movable relative to the base member in response to an inner cable that is attached to a portion of the linkage mechanism. The base member can move in response to tension applied by the inner cable without moving the chain guide which is coupled to the movable member.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: April 16, 2013
    Assignee: Shimano Inc.
    Inventor: Souta Yamaguchi
  • Patent number: 8210230
    Abstract: The invention relates to a winding shaft for a roller blind device with a winding tube (2) and a torsional tensioning device (7) that, with a first end (7a), is coupled to the winding tube (2) in a manner that enables it to rotate in relation thereto. The torsional tensioning device (7), at least with a second end, is coupled to the winding tube (20 so that it is rotationally fixed and axially displaceable in relation thereto.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: July 3, 2012
    Assignee: Webasto AG
    Inventor: Sebastian Glasl
  • Patent number: 8186489
    Abstract: 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: Grant
    Filed: August 14, 2009
    Date of Patent: May 29, 2012
    Inventors: Günther Zimmer, Martin Zimmer
  • Patent number: 8167284
    Abstract: A second spiral spring is smaller than a first spiral spring and is housed in an open space in the center of the first spiral spring. A folded portion that is formed in an inner end of the first spiral spring and a folded portion that is formed in an outer end of the second spiral spring are hooked in a latch plate, under tension, that is cut and raised from a side. A receiving space is formed between the latch plate and an initial winding portion that starts winding in a curved shape from the inner end of the first spiral spring so as to house a tip of the folded portion of the outer end of the second spiral spring that is hooked in the latch plate.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: May 1, 2012
    Assignee: Toyota Boshoku Kabushiki Kaisha
    Inventor: Masato Kuroda
  • Patent number: 8152147
    Abstract: A torsion spring assembly includes a torsion spring body and a fixed base. The torsion spring body has a first coil part and a second coil part. The first coil part connects to the second coil part. The fixed base has a first fixed arm and a second fixed arm. The first coil part is wound around the first fixed arm and the second coil part is wound around the second fixed arm. The winding direction of the first coil part is perpendicular to the winding direction of the second coil part. A portable electronic device with the torsion spring assembly is also disclosed.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: April 10, 2012
    Assignee: ASUSTeK Computer Inc.
    Inventor: Wei-Te Yang
  • Publication number: 20110279950
    Abstract: An elastic device which can be used where there is an interval smaller than the thickness of the spring in a moving range of an arm member. The elastic device includes a spring, a first arm member for receiving at least a part of the spring inside, supporting or fixing an end of the spring, and including a housing portion having an opening along one side and an extension extending outside of the housing portion, and a second arm member for supporting or fixing the other end of the spring in at least one end, including a rotation-supporting portion installed rotationally to the first arm member while overlapping with the spring in the housing portion and an exposing-extension portion connected to the rotation-supporting portion and exposed to outside of the housing portion through the opening.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 17, 2011
    Inventor: Han Sang LEE
  • Patent number: 8056656
    Abstract: This invention relates to a traction assembly for a vehicle which uses an endless traction band and a plurality of wheels for propulsion. More particularly, the traction assembly comprises a sprocket wheel which has a different size and number of sprocket teeth depending on whether the traction kit replaces the front wheels or the rear wheels of the vehicle. The sprocket wheel of the traction kit can also be configured such that its sprocket teeth are laterally offset. The traction kit can also comprise an anti-torque system that prevent physical contact between the traction kit and the vehicle and that can bias the position of the traction kit in order to improve the steering performance. Finally, the traction assembly can comprise a pivotable extension which lengthens the traction assembly and improves its traction capabilities.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: November 15, 2011
    Assignee: Soucy International Inc.
    Inventors: André Todd, Robert Handfield, Robert Bessette, Chad Olson
  • Publication number: 20110266730
    Abstract: A spring (10), for a locking device of a vehicle seat, is designed as a yoke spring defining an axis (A) and made of a spring wire. A cross section diameter (q) has one leg (10a) on each of both ends of the spring wire. The two legs (10a) can pivot relative to each other in a circumferential direction of the axis (A), thereby transitioning the spring (10) from a relaxed state into a tensioned state. At least one first winding (10b) is provided between the legs (10a) that is wound completely around the axis (A) and having a winding diameter (di) in the relaxed state. At least one adjacent second winding (10b) is provided between the legs (10a) and disposed offset along by the axis (A) by a pitch (h), wherein the second winding (10b) may optionally be wound not fully about the axis (A). The second winding (10b) has a winding diameter (d2) in the relaxed state. The pitch (h) is less than the cross section diameter (q).
    Type: Application
    Filed: December 5, 2009
    Publication date: November 3, 2011
    Inventors: Peter Müller, Volker Windecker
  • Publication number: 20110268377
    Abstract: A sliding apparatus includes a first sliding member and a second sliding member slidable relative to the first sliding member. A first resilient member and a second resilient member are connected between the first and second sliding members. The first and second resilient members overlap with each other to provide the better sense of damping for operators.
    Type: Application
    Filed: July 15, 2010
    Publication date: November 3, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: WEN-BIN SHEN
  • Publication number: 20100295222
    Abstract: Disclosed are an actuator capable of preventing interference caused by torsion to thereby improve stability and reliability, and a spring used for the actuator. The actuator includes a first molding part, a second molding part being rotatably connected in an end of the first molding part, and a spring member including a first spring arm that is fixed to the first molding part and a second spring arm that is fixed to the second molding part. In this instance, the first spring and the second spring arms are integrally connected to each other.
    Type: Application
    Filed: July 8, 2008
    Publication date: November 25, 2010
    Inventors: Sang Ho Lee, Byung Han Kim
  • Patent number: 7785716
    Abstract: A bearing apparatus includes a coil spring having a center portion in which a wire is wound at a predetermined pitch, and end turn portions arranged at both end portions of the center portion. Each of the end turn portions is formed by winding the wire at least three turns with a pitch which is smaller than the predetermined pitch of the center portion. A bearing member has a main body with an opening for supporting a shaft, and a connecting portion for connecting the coil spring to the main body. The main body and the connecting portion are integrally formed from a resin material by molding, and the end turn portion of the coil spring is connected to the connecting portion through molding of the main body and the connecting portion. The connecting portion of the bearing member has an inner connecting portion which protrudes into an inside of the end turn portion of the coil spring, and an outer connecting portion which surrounds an outside area of the end turn portion of the coil spring.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: August 31, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiaki Sasatani, Hiroshi Toda, Katsushige Uematsu
  • Patent number: 7766311
    Abstract: A device for providing rotational and axial locking capability using a wireform with at least one wrap. The device requires very low actuation forces. The wireform can be constructed with end features that provide a specific tension such that when the device is engaged a differential slip torque in a clockwise and counterclockwise rotational direction is developed.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: August 3, 2010
    Assignee: Takonix Incorporated
    Inventor: John Alan Kossett
  • Publication number: 20100090471
    Abstract: The elastodynamic energy accumulator-regulator comprises a sheet (1) that is wound or capable of being wound in radioida spiral form with increasing or decreasing curvature along the length of the spiral, capable of absorbing energy at variable torque and supply a practically constant torque in broad working areas The laminate or set of sheets that are wound or capable of being wound about themselves as a spring has variable thickness and/or width and/or reinforcement along its length, and is held at both ends. The laminate or set of sheets is made of composite materials with polymer matrix and fiber reinforcement This elastodynamic energy accumulator-regulator has application as an energy accumulator or regulator in many applications such as wind energy production and other renewable energies, applications in transport, applications in uninterruptible power supply systems, applications in electric network regulation, etc.
    Type: Application
    Filed: November 27, 2006
    Publication date: April 15, 2010
    Applicant: ACUMENER INVESTIGACION Y DESARROLLO, S.L.
    Inventors: Julian Casero Fernandez-Montes, Emilio Bautista Paz, Jose Luis Munoz Sanz, Juan Manuel Munoz Guijosa
  • Patent number: 7691017
    Abstract: A hydraulic tensioner comprising a piston slidably inserted in a piston bore of a housing having rack teeth on an outer circumference thereof, a piston spring biasing the piston in a protruding direction, a pawl member having teeth engageable with the rack teeth of the piston to permit protruding movement of the piston but to block reverse movement of the piston provided in a pawl hole of the housing, and a pawl spring in a pawl spring hole of a generally elliptical cross-section that biases the pawl member in an engaging direction of the teeth of the pawl member with the rack teeth of the piston. A long axis of the generally elliptical cross-sectional shape of the pawl spring is oriented toward an axial direction of the piston. Wire portions of the pawl spring substantially follow the long axis that contacts an upper surface of the pawl member.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: April 6, 2010
    Assignee: BorgWarner Morse TEC Japan K.K.
    Inventors: Shin Seungpyo, Simon Barrette
  • Publication number: 20100077571
    Abstract: The invention provides an operational mechanism for a movable body in which, after a movable body is in an opened state, the movable body can return to a closed position, including a movable body rotatably attached to a support and rotatable between an engaged position, a closed position, and an open position; a rotating member rotatably attached to the support, that rotates due to movement of the movable body to the engaged position; a biasing member, one end of which is attached to the movable body, and the other end of which is attached to the rotating member; and an operation member, which rotates the rotating member, changes the biasing position of the biasing member with respect to the center of rotation of the movable body, and generates in the biasing member a rotational force that moves the movable body to the closed position or the open position.
    Type: Application
    Filed: October 2, 2008
    Publication date: April 1, 2010
    Applicant: NIFCO, INC.
    Inventor: Takehiko Nemoto
  • Publication number: 20100052230
    Abstract: A spring device includes a tubular seat defining a shaft hole therethrough, a shaft, and a torsion spring. The shaft hole has a positioning hole section and a guiding section. The guiding section has a diameter smaller than that of the positioning hole section. The tubular seat further has a keyway that is in spatial communication with the guiding section of the shaft hole. The shaft has a shaft body and a key. The shaft body is extended through the shaft hole and is movable axially relative to the tubular seat between first and second axial positions. The shaft body is rotatable relative to the tubular seat when the shaft body is at the second axial position so as to accumulate a winding force in the torsion spring. The tubular seat further has a key stop that abuts against the key so that the key is offset from the keyway when the shaft body is at the first axial position.
    Type: Application
    Filed: August 26, 2008
    Publication date: March 4, 2010
    Applicant: MACAUTO INDUSTRIAL CO., LTD.
    Inventor: Paul Lin
  • Publication number: 20090261701
    Abstract: Disclosed is a refrigerator. The refrigerator includes a body, a refrigerator door for opening/closing a front surface of the body, with the refrigerator door having an opening, an auxiliary door for opening/closing the opening of the refrigerator door, and a damping unit coupled to a hinge shaft of the auxiliary door to control an opening/closing speed of the auxiliary door. The damping unit includes a case, a rotating member rotatably installed in the case, oil filled in the case to apply resistance against rotation of the rotating member, a fixing member coupled to an end portion of a rotating shaft of the rotating member to rotate together with the rotating member, and an elastic member provided between the case and the fixing member to apply elastic force to the fixing member in a direction opposite to an opening direction of the auxiliary door. It is possible to stably rotate the auxiliary door while controlling the rotational speed of the auxiliary door.
    Type: Application
    Filed: December 8, 2008
    Publication date: October 22, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kwon Chul Yun, Chang Hun Cho
  • Patent number: 7606511
    Abstract: The automatic document transport device 2 comprises a device main body 4, an opening and closing body 20 pivotally supported by the device main body 4 about a support shaft 22 between a closed position and an open position, and a helical torsion coil spring 30 that urges the opening and closing body 20 positioned at the closed position in the open direction. The helical torsion coil spring 30 is provided and arranged at a position separate from the support shaft 22.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: October 20, 2009
    Assignee: Kyocera Mita Corporation
    Inventor: Masayuki Kakuta
  • Publication number: 20090174243
    Abstract: An actuator configured to actuate a member. The actuator optionally including capabilities for storing and releasing kinetic energy. The actuator being suitable for use in any number of environments, including but not limited to facilitating seat folding operations.
    Type: Application
    Filed: March 4, 2009
    Publication date: July 9, 2009
    Applicant: Lear Corporation
    Inventors: John F. Nathan, H. Winston Maue
  • Publication number: 20090160112
    Abstract: A low cost, flexible, torqueable structure for use as at least a portion of a medical device comprises a coil formed of a wound element. The coil includes a plurality of adjacent windings. Connected portions of a region between the adjacent windings are formed (by, for example, laser welding) such that torque can be transmitted between adjacent windings.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 25, 2009
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Isaac Ostrovsky
  • Publication number: 20080211154
    Abstract: The invention to which this application relates is to a mechanism for the tensioning of a spring, typically a coil spring (1) of the torsion type, said spring (1) having first (20) and second (22) arms which depend outwardly from either end of the coil and the spring (1) is provided to create a biasing force. The apparatus is typically a power tool and the invention provides an effective means of tension the spring (1) at the time of assembly of the tool by using components fitted as part of the tool.
    Type: Application
    Filed: August 7, 2006
    Publication date: September 4, 2008
    Applicant: GMCA PTY, LTD.
    Inventor: Robert Firth
  • Publication number: 20080171622
    Abstract: A tensioner comprising a base (20), a pivot arm (30), a pulley (90) journalled to the pivot arm, a torsion spring (10) engaged between the base and the pivot arm, the torsion spring biasing the pivot arm, the torsion spring comprising a cross-sectional form having a major axis (Z-Z) and a minor axis (X-X), the major axis having a length (h) greater than a minor axis length (b), the torsion spring comprising planar portions (15,16) which are substantially parallel with the major axis, and the major axis oriented in a direction that extends substantially radially and normally from a torsion spring winding axis (Y-Y).
    Type: Application
    Filed: January 16, 2007
    Publication date: July 17, 2008
    Inventor: Holger Schever
  • Publication number: 20080098521
    Abstract: In one embodiment, a system for providing cyclic motion includes a magnetic drive having an electrically conductive coil defining a bore and a magnetic member movable through the bore. A control provides current to the coil and selectively reverses the direction of the current to move the magnetic member through the bore. In another embodiment, the system includes a counterbalance. The counterbalance includes a biasing member for reacting against a load applied to a support, and a lever arm coupled to the biasing member for varying a preload of the biasing member. In another embodiment, the magnetic drive and the counterbalance may be incorporated into an apparatus for reciprocating a person.
    Type: Application
    Filed: October 23, 2007
    Publication date: May 1, 2008
    Inventors: Edward Westerkamp, Daniel Meiser
  • Patent number: 7128191
    Abstract: An actuator assembly includes an actuator, an output member, and a spring arrangement having at least one spiral return spring. The output member has a neutral position, a first actuated position, and a second actuated position. The neutral position is between the first actuated position and the second actuated position. The output member capable of being driven by the actuator from the neutral position to the first actuated position and to the second actuated position. The spring arrangement is arranged to bias the output member towards the neutral position from the first actuated position and is arranged to bias the output member towards the neutral position from the second actuated position.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: October 31, 2006
    Assignee: ArvinMeritor Light Vehicle Systems (UK) Ltd.
    Inventor: Sidney Edward Fisher
  • Patent number: 7093577
    Abstract: A damper spring having a torsion coil spring-like shape is placed on outer peripheries of bosses respectively formed on a rope reel and a cam. The ends of the damper spring are engaged with the rope reel and the cam, respectively, so that the rope reel and the cam are rotatingly coupled with each other. A wire member constituting the damper spring is formed so as to have a section shape in which at least one side is linearly formed, and the damper spring is formed by winding the wire member into a coil-like shape so that the linear portion of the wire member is placed on an inner peripheral side, thereby enabling the inner side face of the damper spring to be tightly wound in a wide area around outer peripheral faces of the bosses.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: August 22, 2006
    Assignee: Starting Industrial Co., Ltd.
    Inventor: Isao Tohyama
  • Patent number: 7048271
    Abstract: A sheet separator for an automatic document feeder of the invention is capable of separating an outmost sheet from a stack. The separator includes a separating roller driven by a driving device, a friction roller, a first shaft, and a force-applying mechanism for pushing the separating and friction rollers against each other. The friction roller has a first rotating state, in which the friction roller is driven by the separating roller, a stationary state when the separating roller feeds a first sheet, and a second rotating state, in which the friction roller is driven by a second sheet fed by the separating roller. The first shaft is inserted into the friction roller to provide a damping torque for stopping the rotation of the friction roller.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: May 23, 2006
    Inventors: Thomas Sheng, Huan-Hsing Hsiao
  • Patent number: 6986508
    Abstract: A spring holding cone (1) for a spring end of a spiral torsion spring (13), especially a sectional door spring for an industrial door or a garage sectional door, has an outside surface (2) for supporting the spring end of the torsion spring (13) at its inside diameter and fixing means for fixing the spring end to the spring holding cone (1) in a torque resistant way. The fixing means comprise a flank (5) which protrudes from the outside surface (2) and engages between the first spring turn (12) and the second spring turn of the torsion spring (13) at the spring end. The flank (5) extends over less than 180° of the circumference of the outside surface (2); and a securing element (6) extends over a flank-free area of the outside surface (2).
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: January 17, 2006
    Assignee: Wilhelm Brand KG
    Inventors: Jürgen Alers, Jochen Birwe
  • Patent number: 6931691
    Abstract: Wiper spring is made of a length of spring wire having hook-like end portions at opposite ends. One of the end portions is shaped to slide over the drive arm of a vehicle wiper assembly from one side. The other end portion is shaped to hook over the wiper arm of the vehicle wiper assembly for applying additional spring force to the wiper arm to maintain better contact of the wiper blade against the surface being wiped during operation of the wiper assembly.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: August 23, 2005
    Assignee: DER 3 Products
    Inventor: Richard E. Ward
  • Patent number: 6857631
    Abstract: A sheet feeding system in which the idler roller shafts are loosely mounted between opposing side walls of a slot for limited movement relative to their mating sheet feeding rollers, and spring biased theretowards to provide sheet feeding nips with the desired normal force, wherein the spring biasing is nonsymmetrical to additionally provide an orthogonal spring biasing of the idler shafts towards only one of the side walls of their mounting slots. This nonsymmetrical spring biasing may be provided by a torsion spring with a central coil wrapped around the idler shaft and extending legs anchored in nonsymmetrical anchoring positions and/or with nonsymmetrically shaped legs.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: February 22, 2005
    Assignee: Xerox Corporation
    Inventors: Elden R. Morrison, Wayne C. Powley, Dara N. Lubin