Plural, One Within Another Patents (Class 267/168)
  • Patent number: 10273989
    Abstract: A valve actuator device includes a supporting body, a driving shaft, and a fluid cylinder having a body connected to one side of the supporting body. The cylinder has a rod that controls rotation of a driving arm rigidly connected to the driving shaft. Linear movement of the rod is converted into rotation of the driving arm by engagement of a cam-follower pin carried by the rod within a slot formed in the driving arm. The slot is formed in an insert that constitutes an element separate from the driving arm body and that is received and held within a seat of the driving arm body. Thus, a single main body for the driving arm is provided, having a plurality of inserts for selective mounting within the seat and are differentiated from one another in the dimensions and shape of the slot and/or in the material of the insert.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: April 30, 2019
    Assignee: Rotork Fluid Systems S.r.l.
    Inventors: Pier Paolo Paradiso, Marco Borselli, Nicola Batistoni, Stefano Vettori, Anselmo Nicolini
  • Patent number: 10151368
    Abstract: A spring assembly having at least two canted coil spring lengths nested together are disclosed. Two sections of coils of a canted coil spring length can each be positioned between two adjacent coils of another canted coil spring. Each section of the coils of the canted coil spring length includes at least one coil and up to several coils or a plurality of coils. The canted coil spring lengths are nested together to increase the deflection force of the overall spring assembly. The spring assembly having two or more nested spring lengths can be used in connector applications.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: December 11, 2018
    Assignee: Bal Seal Engineering, Inc.
    Inventor: Brian Carter
  • Patent number: 10125839
    Abstract: The current invention discloses several methodologies that mitigate shock loading and propensity to resonance in agricultural spray boom structures. These include a near planar linkage for decoupling the boom assembly from the vehicle. This serves to permit further aspects of the invention to: Use the combined mass of the booms and center section as the tuned mass of a tuned mass damper: Act as an enabling part of a boom compliant suspension system to mitigate shock loadings otherwise imposed on the boom system, and: Act as an enabling part of an active boom height and roll control systems to permit the accurate navigation of the boom over undulating terrain. Further aspects include the incorporation of tuned mass dampers in the boom structure and components; and the use of the mass and operation of the boom outboard “breakaway” sections as tuned mass dampers.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: November 13, 2018
    Assignee: Specialty Enterprises, LLC
    Inventor: Roy Venton-Walters
  • Patent number: 10128065
    Abstract: A rotation transmitting mechanism may include first and second tubular holders connected to first and second tubular members, respectively, to be incapable of rotating relative thereto, and a third tubular holder provided to project from an inside of the second tubular holder to the first tubular holder side and connected to the second tubular holder to be incapable of rotating relative thereto. The rotation transmitting mechanism may also include an inner coil spring, the ends of which are inserted inside of and respectively fixed to the first and third tubular holders, and an outer coil spring, the ends of which are inserted outside of and respectively fixed to the first and third tubular holders. The coils may have the same winding direction. In certain states, the second and third tubular holders may be connected to be incapable of rotating relative to each other.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: November 13, 2018
    Assignee: Valeo Japan Co., Ltd.
    Inventors: Kenji Amimoto, Takeshi Okuhara
  • Patent number: 10121692
    Abstract: There is disclosed an improved substrate holding apparatus which can minimize deformation of a spring, which is provided to bias a support post for supporting a substrate, even when a large centrifugal force acts on the spring. The substrate holding apparatus includes: a support post movable in an axial direction thereof; a chuck provided on the support post and configured to hold a periphery of a substrate; a spring biasing the support post in the axial direction; a first structure configured to restrict a movement of an upper portion of the spring in a direction perpendicular to the axial direction of the support post; and a second structure configured to restrict a movement of a lower portion of the spring in a direction perpendicular to the axial direction of the support post.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: November 6, 2018
    Assignee: Ebara Corporation
    Inventors: Naoki Toyomura, Mitsuru Miyazaki, Takuya Inoue
  • Patent number: 9970503
    Abstract: End mounts are used to secure a helical tension spring to end fixtures with various shapes and sizes. These end mounts contain an inner hole to encase the inner spring end mount and secure the end mount making it like a cap. There is also a keyhole created in the top surface that goes through the end mount allowing it to fit over the fixtures but not over the inner end mount, holding it in place. Grooves are machined in a helical pattern on the cylindrical side wall of the end mount. The spring is wound onto the grooves of the end mount.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: May 15, 2018
    Assignee: Renton Coil Spring Company
    Inventor: Charles F. Pepka
  • Patent number: 9944144
    Abstract: A vibration attenuation system for attenuating a transmission of an input signal is disclosed. The system includes a helical spring, a first terminal, and a first damping element. The helical spring includes a plurality of helical coils, a first end, and a second end. The plurality of helical coils define an inner volume of the helical spring intermediate the first and second ends. The first terminal includes a first inner member. The first terminal is coupled to the first end of the helical spring. The first inner member extends into the inner volume of the helical spring. The first damping element is positioned on the first inner member. The first damping element is within the inner volume of the helical spring. When the input signal is provided to the helical spring, the first damping element engages the helical coils and attenuates the transmission the input signal.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: April 17, 2018
    Assignee: Renton Coil Spring Company
    Inventor: Charles F. Pepka
  • Patent number: 9656529
    Abstract: Suspension group for motorized vehicles comprising a main spring which extends between a first and a second end of the group, a main damper connected in parallel to said main spring said main spring being pre-loaded by pre-loading means which together press the spring in compression and impose a rest length thereon, namely the length assumed by the spring when there are no further external loads on the first and/or on the second end of the group except for the pre-load caused by the pre-loading means, wherein the first and second end are connected kinematically to a first and a second mass of the motor vehicle respectively, the first mass being a mass suspended by the suspension group and the second mass being a non-suspended mass.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: May 23, 2017
    Assignee: PIAGGIO & C. S.p.A.
    Inventors: Stefano Bartolozzi, Michele Bertelli, Luigi Dall'Igna, Riccardo Savin
  • Patent number: 9293859
    Abstract: A connector is disclosing with a housing having a housing groove and a shaft with a pin groove. A spring may be located in either the housing groove or the pin groove. To prevent or limit the spring from popping out from the groove where it is positioned, a reduced entrance is provided. The connector may be used in a holding application, a latching application, or both a holding with latching application.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: March 22, 2016
    Assignee: Bal Seal Engineering, Inc.
    Inventor: Michelle Huang
  • Publication number: 20150018779
    Abstract: A spring assembly for a drug delivery device and to such a device, is presented having at least a first coil spring element, and at least a second coil spring element nested arranged with the first coil spring element, and at least a first support member attached to a first end of the first and the second coil spring elements.
    Type: Application
    Filed: February 20, 2013
    Publication date: January 15, 2015
    Inventors: Philippe Nzike, Michael Schabbach
  • Patent number: 8905386
    Abstract: A spring system that includes at least an inner spring and an outer spring disposed around the inner spring. The inner spring exhibits a stiffness (k1) and the outer spring exhibits a stiffness (k2) in an uncompressed state. The inner spring exhibits a stiffness (k3) and the outer spring exhibits the stiffness (k2) in an intermediate compressed state, and the inner spring exhibits the stiffness (k3) and the outer spring exhibits a stiffness (k4) in a fully compressed state. In this manner, the spring system of the present disclosure may provide a vehicle with variable rates of compression that assist in providing a smooth ride at lower loads or jounce levels.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: December 9, 2014
    Assignee: Chrysler Group LLC
    Inventor: Adam G. Rasbach
  • Publication number: 20140225318
    Abstract: A spring assembly includes a substrate, an inner coil spring, and an outer coil spring arranged outside the inner coil spring. One of the inner coil spring and the outer coil spring includes an end turn portion, the end turn portion forming a support wall for an other of the inner coil spring and the outer coil spring.
    Type: Application
    Filed: April 21, 2014
    Publication date: August 14, 2014
    Applicant: PIOLAX Inc.
    Inventors: Kensuke Takeda, Yasutaka Uematsu, Toshie Fueki
  • Publication number: 20130300044
    Abstract: A spring system that has first and second housings and a first mechanical spring connected to the first and second housings. The first and second housings each have a front portion having a front end and rear portion having a rear end and an internal chamber. The front end of the second housing is telescopically inserted into the internal chamber of the first housing. The first mechanical spring is at least partially positioned in the internal chamber of the first and second housings. The first end of the first mechanical spring is connected to a first connection arrangement in the first housing. The second end of the first mechanical spring is connected to a second connection arrangement in the second housing. The first and/or second connection arrangement threadedly engages the first mechanical spring.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 14, 2013
    Inventors: JACK W. ADOLINE, Phil McConnell
  • Publication number: 20130200557
    Abstract: End mounts are used to secure a helical tension spring to end fixtures with various shapes and sizes. These end mounts contain an inner hole to encase the inner spring end mount and secure the end mount making it like a cap. There is also a keyhole created in the top surface that goes through the end mount allowing it to fit over the fixtures but not over the inner end mount, holding it in place. Grooves are machined in a helical pattern on the cylindrical side wall of the end mount. The spring is wound onto the grooves of the end mount. A friction-resistant coating is applied between components of the assembly to mitigate wear and to prevent bending and twisting.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 8, 2013
    Inventor: Renton Coil Spring Company
  • Patent number: 8353092
    Abstract: A surgical fastener comprising a clip movable between an open configuration and a closed configuration and a biasing member contacting the clip and biasing the dip to its open configuration when the biasing member is actuated. The biasing member and clip both tend to assume the closed configuration when no external forces are applied to them. A needle may be releasably attached to the clip. Methods for making the fasteners are also disclosed, in which both the clip and the biasing member are set in the closed position.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: January 15, 2013
    Assignee: Medtronic, Inc.
    Inventors: John Nguyen, Nga T. Doan, Laurent Schaller
  • Patent number: 8292274
    Abstract: A spring system for relatively displacing elements attached to end mounts of the rod assembly comprises a housing having a rod member movable between extended and retracted positions relative thereto, and a first compression spring in the housing surrounded by a second compression spring for biasing the rod member to one of an extended or retracted position relative to the housing. The two springs are oppositely wound whereby, from a compressed condition, the spring rod exerts an expansion force which increases at a linear rate. The spring system includes a valve arrangement to control the rate at which the spring rod moves from a retracted position to an extended position.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: October 23, 2012
    Assignee: Barnes Group Inc.
    Inventors: Jack W. Adoline, Thomas J. Fischer
  • Publication number: 20120186027
    Abstract: A spring assembly including a helical coil formed from a multi-strand cord.
    Type: Application
    Filed: January 23, 2012
    Publication date: July 26, 2012
    Applicant: DREAMWELL, LTD.
    Inventors: RICHARD F. GLADNEY, BERNHARD W. KUCHEL, MICHAEL S. DEFRANKS
  • 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: 20110204550
    Abstract: End mounts are used to secure a helical tension spring to end fixtures with various shapes and sizes. These end mounts contain an inner hole to encase the inner spring end mount and secure the end mount making it like a cap. There is also a keyhole created in the top surface that goes through the end mount allowing it to fit over the fixtures but not over the inner end mount, holding it in place. Grooves are machined in a helical pattern on the cylindrical side wall of the end mount. The spring is wound onto the grooves of the end mount.
    Type: Application
    Filed: February 23, 2010
    Publication date: August 25, 2011
    Applicant: Renton Coil Spring Company
    Inventor: Charles F. Pepka
  • Patent number: 7929859
    Abstract: In a camera device 1a with a shutter button 2 for transmitting an externally-applied pressing force to a switch 7, a boss 24 has a first end attached to the shutter button 2, and a second end opposed to the switch 7, a coil spring 6a has a first winding portion 61a and a second winding portion 62a, which are respectively wound into first and second shapes about a common central axis As, the second shape includes the first winding portion 61a, and the second end of the boss 24 is inserted into the first winding portion 61a.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: April 19, 2011
    Assignee: Panasonic Corporation
    Inventor: Jun Saiki
  • Publication number: 20100320660
    Abstract: According to one embodiment, a spring assembly includes: a substrate; a coil spring having an end turn portion fixed to the substrate; an inner wall provided at an inner peripheral side of the coil spring; and an outer wall provided at an outer peripheral side of the coil spring, wherein one of the inner wall and the outer wall forms a spring fixing wall configured to prevent the end turn portion of the coil spring from coming off in an axial direction of the coil spring, and wherein the other of the inner wall and the outer wall forms a support wall configured to prevent the end turn portion of the coil spring from moving in a radial direction of the coil spring.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 23, 2010
    Applicant: Piolax Inc.
    Inventors: Kensuke Takeda, Yasutaka Uematsu, Toshie Fueki
  • Publication number: 20100065996
    Abstract: A multiple-layer compression spring having spring bodies that are disposed inside of each other wherein the spring bodies are produced in a continuous manner from an uninterrupted piece of wire.
    Type: Application
    Filed: January 29, 2007
    Publication date: March 18, 2010
    Applicant: Bauman Federn AG
    Inventors: Andreas Hohl, Hans Notenboom
  • Patent number: 7677539
    Abstract: A force control strut including a housing having first and second ends and an internal chamber, a rod member having an inner end reciprocally movable inside the housing and along the internal chamber, a guide member forming a bushing allowing reciprocation of the rod member in the housing, a bottom plug fixed in the internal chamber, a guide piston secured to an inner end of the rod and slidable along an inner surface of the internal chamber, a first coil spring positioned between the guide piston and one end of the housing to bias the rod member in a given direction in the housing, a first external connector fixed to the rod member, a second connector fixed to the bottom plug, and a damper that includes a plunger reciprocally mounted in a force controlling passageway inside the rod member and movable in a passageway of the rod member.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: March 16, 2010
    Assignee: Barnes Group Inc.
    Inventor: Jack W. Adoline
  • Publication number: 20090085265
    Abstract: A mechanical strut includes an inner tube and an outer tube configured to telescopically receive at least a portion of the inner tube. The mechanical strut also includes a friction lock mechanism having a released configuration that allows movement of a first locking member and a second locking member of the friction lock mechanism within the mechanical strut. An engaged configuration of the friction lock mechanism prevents movement of the first and second locking members within the mechanical strut. An adjustment mechanism is operably coupled to the friction lock mechanism for placing the friction lock mechanism into the released configuration, thereby releasing the first locking member from frictional engagement with an inner surface of the mechanical strut and allowing telescopic movement of the mechanical strut through a continuous range of positions.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Inventors: Dave Lucas, James D. Morris, JR., Tyler Henderson
  • Publication number: 20090071286
    Abstract: A spring apparatus includes a double coil spring and an elastically deformable damper made of resin. The double coil spring includes an outer coil spring and an inner coil spring. The damper has at least one ring portion. The damper is arranged such that at least a part of the damper is in contact with the outer coil spring and the inner coil spring. A spring line of one of the outer coil spring and the inner coil spring passes through the ring portion, so that the ring portion is caught in the one of the outer coil spring and the inner coil spring and the damper is held between the outer coil spring and the inner coil spring.
    Type: Application
    Filed: August 21, 2008
    Publication date: March 19, 2009
    Applicant: DENSO CORPORATION
    Inventors: Masato Ueno, Haruhiko Suzuki
  • Patent number: 7467787
    Abstract: A compression spring rod for relatively displacing elements attached to end mounts of the rod assembly comprises a housing having a rod member moveable between extended and retracted positions relative thereto, and a first compression spring in the housing surrounded by a second compression spring for biasing the rod member to one of an extended or retracted position relative to the housing. The two springs are oppositely wound, of different length, of different outside diameter, and of different wire diameter whereby, from a compressed condition, the spring rod exerts an expansion force which increases at a linear rate. Two sets of the springs can be arranged for biasing the rod member to a central position relative to the housing.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: December 23, 2008
    Assignee: Barnes Group Inc.
    Inventors: Jack W. Adoline, Thomas J. Fischer
  • Publication number: 20080203633
    Abstract: A spring including a wire having an elasticity by which the wire is compressible by an external force to a first position at which first and second ends thereof of are separated by a first distance and when the force is removed or an electrical current applied, the wire is extensible in response to an internal spring force to a second position at which the wire is substantially straight. A spring assembly is disclosed including a plurality of inventive wires cross-coupled with a support structure consisting of a plurality of coaxial rings. In the assembly, the wires extend parallel to an axis through a center of the rings.
    Type: Application
    Filed: February 23, 2007
    Publication date: August 28, 2008
    Inventors: Frederick B. Koehler, Ward D. Lyman, Kenneth E. Schmidt
  • Publication number: 20080036128
    Abstract: A spring seat 51 adapted to support a large coil spring 34 to absorb and to dampen torsional vibrations and a small coil spring 35 positioned within the large coil spring 34 having a smaller outside diameter than an inside diameter of the large coil spring 34, includes a seat body 52 supporting an end of the large coil spring 34 and an end of the small coil spring 35 in a compressing direction, a first supporting portion 54 protruding from the seat body 52 in the compressing direction of the small coil spring 35 and supporting an inner periphery of the small coil spring 35, and a second supporting portion 53 formed at an end portion of the seat body to covering partial an outer periphery of the large coil spring 34 and to support an outer peripheral side of a part of the large coil spring 34.
    Type: Application
    Filed: July 9, 2007
    Publication date: February 14, 2008
    Applicant: Exedy Corporation
    Inventor: Hiroshi Uehara
  • Patent number: 7309357
    Abstract: A prosthetic spinal disc uses a stiff spring or springs for resiliency between two plates that attach to adjacent vertebrae. When the disc has multiple springs, they may be adjacent, concentric or nested. Multiple springs may be spaced around the periphery of the plates. A foil metal bellows may surround the plates to prevent material from entering or exiting the space between the plates. Alternatively, the ends of the spring(s) may be machined with spikes to engage the vertebrae directly without plates.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: December 18, 2007
    Assignee: Infinesse, Corporation
    Inventor: Chong Chol Kim
  • Patent number: 7261286
    Abstract: A lift spring assembly has a compression spring rod with a housing having a longitudinal axis and axially opposite ends, and having a rod member coaxial with the axis and having an inner end in the housing and an outer end axially outwardly of one of the opposite ends. A guide member is provided on the inner end of the rod member for supporting the rod member during movement of the rod member. A first stage spring assembly extends between one of the opposite ends of the housing and the guide member. A second stage spring assembly extends between the other of the opposite ends of the housing and the guide member. A mounting member extending from one of the opposite ends of the housing for mounting the spring rod assembly to a hood assembly. A locking member is pivotally connected to the mounting member and pivots into locking engagement with one of the ends of the housing.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: August 28, 2007
    Assignee: Barnes Group Inc.
    Inventors: Phillip A. McConnell, Jack W. Adoline
  • Patent number: 7145768
    Abstract: The present invention is a computer controlled display device. In one embodiment, the display device includes a flat panel display having an input for receiving display data. Additionally, a moveable assembly may be coupled to the display. The moveable assembly may provide at least three degrees of freedom of movement for the flat panel display device. Additionally, the moveable assembly may have a cross-sectional area, which is substantially less than a cross-sectional area of a display structure of the flat panel display.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: December 5, 2006
    Assignee: Apple Computer, Inc.
    Inventors: Michael D. Hillman, Frank Tsai, Michael D. McBroom, Daniel L. McBroom, Brian T. Sudderth, Bartley K. Andre, Christopher Stringer, Daniel Riccio, Sung Kim, Cliff Jue, Larry Cheng, Jon Kaplan, Rickson Sun, James R. Yurchenco
  • Patent number: 7066455
    Abstract: A self-centering mechanical strut has first and second housing members. The second housing member telescopically receives the first housing member. Spring assemblies are mounted within each of the housing members. The spring assembly in the first tube is compressed when the first housing is pushed into the second housing. The spring assembly in the second tube is compressed when the first housing is pulled out of the second housing. Each housing is spring-biased to return to its respective neutral position.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: June 27, 2006
    Assignee: Barnes Group Inc.
    Inventors: Jack W. Adoline, Mark R. Thomas, Bruce J. Fondren
  • Patent number: 7026574
    Abstract: A gripping device for a set of pinch rollers used in a wire feeder that supplies a welding operation with a consumable welding wire. The welding wire passes between the pinch rollers whereby the pinch rollers engage the wire with a gripping force and incrementally rotate to control the outflow of the wire to the welding operation. The gripping device has a first member which is displaceable relative to a second member and a spring mechanism extending between the first and second members which has at least a first and a second spring modulus. The spring mechanism produces the gripping force as the first and the second members are displaced toward one another. The gripper urges one roller of the set of pinch rollers toward the other roller of the set to engage the wire and to apply the gripping force.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: April 11, 2006
    Assignee: Lincoln Global, Inc.
    Inventors: Brian J. Belfiore, Edward A. Enyedy, Bryan Nelson
  • Publication number: 20040207136
    Abstract: A compression spring rod for relatively displacing elements attached to end mounts of the rod assembly comprises a housing having a rod member moveable between extended and retracted positions relative thereto, and a first compression spring in the housing surrounded by a second compression spring for biasing the rod member to one of an extended or retracted position relative to the housing. The two springs are oppositely wound, of different length, of different outside diameter, and of different wire diameter whereby, from a compressed condition, the spring rod exerts an expansion force which increases at a linear rate. Two sets of the springs can be arranged for biasing the rod member to a central position relative to the housing.
    Type: Application
    Filed: May 4, 2004
    Publication date: October 21, 2004
    Applicant: Barnes Group Inc., a Delaware corporation
    Inventors: Jack W. Adoline, Thomas J. Fischer
  • Patent number: 6773002
    Abstract: A compression spring rod for relatively displacing elements attached to end mounts of the rod assembly comprises a housing having a rod member moveable between extended and retracted positions relative thereto, and a first compression spring in the housing surrounded by a second compression spring for biasing the rod member to one of an extended or retracted position relative to the housing. The two springs are oppositely wound, of different length, of different outside diameter, and of different wire diameter whereby, from a compressed condition, the spring rod exerts an expansion force which increases at a linear rate. Two sets of the springs can be arranged for biasing the rod member to a central position relative to the housing.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: August 10, 2004
    Assignee: Barnes Group Inc.
    Inventors: Jack W. Adoline, Thomas J. Fischer
  • Patent number: 6688587
    Abstract: A method is provided for adapting or adjusting a machine support where the weight of the machine is accommodated exclusively by a main support. For a differentiated adaptation of the machine support to secondary forces, such as oscillating inertial forces, at least one auxiliary module, which is free of the weight of the machine, is connected in parallel to the main support in such a way that as a consequence of the spring rigidity of the auxiliary module, a spring system combination of the main support and of the auxiliary module corresponds to prescribed characteristics of dampening and inherent frequency.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: February 10, 2004
    Assignee: Man Nutzfahrzeuge AG
    Inventor: Wolfgang Burkhardt
  • Patent number: 6612556
    Abstract: A single spring unit includes a multi-helical spring formed of composite material. The single spring unit includes multiple layers of composite material disposed in a first helical configuration, and multiple layers of composite material in a second helical configuration interwoven with one another, and coupled together to form the single spring unit.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: September 2, 2003
    Assignee: Cornell Research Foundation, Inc.
    Inventor: Petru Petrina
  • Publication number: 20030141641
    Abstract: A compression spring rod for relatively displacing elements attached to end mounts of the rod assembly comprises a housing having a rod member moveable between extended and retracted positions relative thereto, and a first compression spring in the housing surrounded by a second compression spring for biasing the rod member to one of an extended or retracted position relative to the housing. The two springs are oppositely wound, of different length, of different outside diameter, and of different wire diameter whereby, from a compressed condition, the spring rod exerts an expansion force which increases at a linear rate. Two sets of the springs can be arranged for biasing the rod member to a central position relative to the housing.
    Type: Application
    Filed: January 28, 2002
    Publication date: July 31, 2003
    Applicant: Barnes Group Inc., a Delaware corporation
    Inventors: Jack W. Adoline, Thomas J. Fischer
  • Patent number: 6565073
    Abstract: A suspension assembly for a motor vehicle includes a wheel assembly attached to the frame of a motor vehicle for movement in response to uneven roadway surfaces. A first inductive coil attached to the frame is mounted along an axis, and a second inductive coil is mounted co-axially with the first inductive coil and for movement with the wheel assembly. The inductive coils are movable relative to one another along the axis. An electromagnetic force generated by the inductive coils provides spring and dampening forces for the motor vehicle. Further, variation in the inductance between the coils is measurement to determine the relative position between the coils in order to monitor motor vehicle ride height.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: May 20, 2003
    Assignee: Meritor Light Vehicle Technology, LLC
    Inventors: Robert P. Carlstedt, Daniel E. Whitney, Mark C. Smith, Eric Stephen Geib, Steven M. Foster, Richard M. Clisch, Shan Shih, Juan Jose Marcos Munoz
  • Patent number: 6550859
    Abstract: Backrests for vehicle seats are disclosed including a support attached to a frame including a plurality of resilient springs and a corresponding plurality of stroke limiters for permitting the resilient springs to move through a predetermined stroke and absorb a load within a first load range and limiting further stroke of the resilient springs within a second load range, one of the resilient springs and the stroke limiters including a fastener for attachment to the frame and one of the resilient springs and stroke limiters including a second fastener for attachment to the support.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: April 22, 2003
    Assignee: Volvo Car Corporation
    Inventors: Torsten Andersson, Björn Lundell
  • Patent number: 6547227
    Abstract: A torsional vibration damper comprising at least two components which can be twisted against the resistance of at least one energy storage element, spring coils extending along its longitudinal axis. The components have forced-application areas for compressing the energy storage element. The invention also relates to a helical compression spring made of steel spring wire which has a plurality of coils along its length and can be compressed until it becomes blocked. Between its two terminal coils, the helical spring has at least two types of coils having different external diameters, namely a first larger external diameter and a second, smaller external diameter.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: April 15, 2003
    Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventor: Hartmut Mende
  • Publication number: 20020158392
    Abstract: A single spring unit includes a multi-helical spring formed of composite material. The single spring unit includes a multiple layers of composite material disposed in a first helical configuration, and multiple layers of composite material in a second helical configuration interwoven with one another, and coupled together to form the single spring unit.
    Type: Application
    Filed: April 30, 2001
    Publication date: October 31, 2002
    Applicant: Cornell Research Foundation, Inc.
    Inventor: Petru Petrina
  • Patent number: 6382607
    Abstract: A spring assembly having a coil containing a core and methods and apparatus for manufacturing the same are disclosed. The coil includes a core between reduced portions of the coil. One device for manufacturing the coil includes a coiling machine having an insert device operable with a coiler. The coiler is programmed to form coils of appropriate diameter along the length of the coil, including a diameter sufficiently large to contain the core and two diameters sufficiently small to retain the core in the coil. The insert device transfers the core to the coil after the first small diameter is formed and before the second small diameter is formed. The coil with the core contained between the two small diameters is thereby manufactured in a unified automated process.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: May 7, 2002
    Assignee: Precision Products Group
    Inventors: David A. Meier, Dean A. Pranger, Jerry Lee Wigren, Ken Eugene Simons, Norman Edward Bradshaw, John R. Smith, Russell D. Sugarbaker
  • Patent number: 6264183
    Abstract: A spring assembly having a coil containing a core and methods and apparatus for manufacturing same are disclosed. The coil includes a core between reduced portions of the coil. One device for manufacturing the coil includes a coiling machine having an insert device operable with a coiler. The coiler is programmed to form coils of appropriate diameter along the length of the coil, including a diameter sufficiently large to contain the core and two diameters sufficiently small to retain the core in the coil. The insert device transfers the core to the coil after the first small diameter is formed and before the second small diameter is formed. The coil with the core contained between the two small diameters is thereby manufactured in a unified automated process.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: July 24, 2001
    Assignee: Precision Products Group
    Inventors: David A. Meier, Dean A. Pranger, Jerry Lee Wigren, Ken Eugene Simons, Norman Edward Bradshaw, John R. Smith, Russell D. Sugarbaker
  • Patent number: 6220586
    Abstract: A multiple torsion spring assembly according to the present invention may be provided with a coiled helical torsion spring. The spring has first and second end coils, and a plurality of intermediate coils between the first and second end coils. The first end coil inner diameter is less than the inner diameter of the intermediate coils. The second end coil inner diameter is less than the inner diameter of the first end coil. The spring may be used to control a throttle return of a throttle body. Methods of manufacturing spring assemblies are also disclosed.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: April 24, 2001
    Assignee: Precision Products Group
    Inventors: Robert J. Pavlin, Todd K. Watkins, Gary T. Wehnes, Curt A. Converse, James E. Adams
  • Patent number: 6158725
    Abstract: The device serves for storing energy. A spatial work range is defined by a displacement path upon compression of at least one spring of the spring storage. Along the work range in the working direction, at least two springs are arranged which are impinged in temporal succession upon compression and relaxation, respectively. For impinging the springs, at least one stationary retaining element and a mobile runner are provided. A spring loaded at a first point of time is immobilized in such a way that during a further displacement of the runner no further force is exerted by this spring between runner and retaining element. Reactivation of the immobilized springs is provided in temporal succession upon a reverse movement of the runner.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: December 12, 2000
    Inventor: Friedrich Fischer
  • Patent number: 5882264
    Abstract: A spring damper device includes cylindrical outer coil springs and inner springs inserted in the outer coil springs, respectively. The cylindrical outer coil springs are held in the form of arcs of a circle at angular intervals therebetween by a retainer plate, whereas the inner springs have a length shorter than the outer coil springs so that the inner springs are actuated a predetermined angle later compared with their corresponding outer coil springs. Each of the inner springs has a diameter smaller at opposite end portions thereof than at a central portion thereof.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: March 16, 1999
    Assignee: NSK-Warner K.K.
    Inventors: Hiroshi Yabe, Shiro Takeuchi
  • Patent number: 5823516
    Abstract: A torsion damper is of the kind in which the springs bear against thrust inserts or spring seats. The anterior part of each spring seat has a circular perimeter, the diameter of which is smaller than the internal diameter of the outermost spring of the associated group of springs, while the posterior part of the spring seat includes a barrel element which projects from the back of the anterior part of the spring seat. This barrel element also extends radially beyond the perimeter of the anterior part, at each end of the barrel element, so that the outermost spring of the associated group bears on the projecting portions of the barrel element in end thrust engagement.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: October 20, 1998
    Assignee: Valeo
    Inventor: Dominique Despres
  • Patent number: 5803442
    Abstract: A torsion damping device, in particular for inclusion in a clutch friction wheel of a motor vehicle clutch, includes springs which are in end thrust engagement on thrust inserts or spring seats which are mounted for pivoting movement in the friction wheel. The anterior part of each of these spring seats, on which the springs are in end thrust and/or centring engagement, is made at least partly of synthetic material, while the posterior part of the spring seat, by which the latter is pivotally mounted in the friction wheel, is made at least partly of metal.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: September 8, 1998
    Assignee: Valeo
    Inventors: Dominique Despres, Olivier Bouchez
  • Patent number: 5775619
    Abstract: A roller comprises: a support shaft bearing at either opposite end a bush supporting an external tubular element containing the shaft and destined to be a support element of a cover fixed thereto by one end; a motor to recall the roller by setting the tubular element in rotation about the shaft in an opposite direction to that followed during an unwinding of the cover, and constituted by at least two helix springs, separate but cooperating, which are coaxially keyed on the shaft; the ends of each spring being stably fixed on corresponding seats exhibited by a first support keyed on the shaft and a second support, axially fixed and rotatably mounted on the shaft, and solid to the tubular element.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: July 7, 1998
    Assignee: P.E.I. Protezioni Elaborazioni Industriali S.R.L.
    Inventor: Giorgio Tabellini