Coil Patents (Class 267/166)
  • Patent number: 9726249
    Abstract: Various embodiments of a spiral shaped element and embedded wavy materials are disclosed for use in a shock mitigating material to dissipate the energy associated with the impact of an object. The shock mitigating material can be used in helmets, bumpers, bullet proof vests, military armor, and other applications. One embodiment, among others, is a shock mitigating material having a plurality of spiral shaped elements, each having a circular cross section, and each being tapered from a large outside end to a small inside end but also having an embedded wavy material that can induce shear waves to mitigate the shock pressure and impulse.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: August 8, 2017
    Assignee: Mississippi State University
    Inventor: Mark F. Horstemeyer
  • Patent number: 9541148
    Abstract: A process for forming a high temperature single crystal canted spring is provided. In one embodiment, the process includes fabricating configurations of a rapid prototype spring to fabricate a sacrificial mold pattern to create a ceramic mold and casting a canted coiled spring to form at least one canted coil spring configuration based on the ceramic mold. The high temperature single crystal canted spring is formed from a nickel-based alloy containing rhenium using the at least one coil spring configuration.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: January 10, 2017
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Jeffrey J DeMange, Frank J Ritzert, Michael V Nathal, Patrick H Dunlap, Bruce M Steinetz
  • Patent number: 9470590
    Abstract: A coil spring modeling apparatus includes an actuator unit formed of a Stewart-platform-type parallel mechanism, a first inner load cell accommodated in a first attachment member, a second inner load cell accommodated in a second attachment member, and a rotation support mechanism. The actuator unit is rotatably supported by the rotation support mechanism about an axis. The first inner load cell is arranged on the first seat adapter coaxially with the rotation support mechanism, and detects an axial force acting on the lower spring seat and a moment. The second inner load cell is arranged under the second seat adapter coaxially with the rotation support mechanism, and detects an axial force acting on the upper spring seat and a moment.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: October 18, 2016
    Assignees: NHK SPRING CO., LTD., NHK INTERNATIONAL CORPORATION
    Inventors: Takahiro Nakamura, Kazuo Furukawa, Senri Moriyama, Ryuichi Sato, Shinichi Nishizawa
  • Patent number: 9334913
    Abstract: A bearing arrangement and a method for forming a bearing arrangement for a spring, in particular for a spring of a vehicle chassis, having at least one spring insert in which at least part of a spring coil of the spring is accommodated. The spring insert is an elastomer and is flexible. The spring insert is configured to be movable with a moving of the spring coil. An adhesive is introduced between the spring and the spring insert, with the result that the connection of the spring insert to the spring has a bonded connection.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: May 10, 2016
    Assignee: Thyssenkrupp Federn und Stabilisatoren GmbH
    Inventors: Daniel Schüssler, Dieter Lechner
  • Patent number: 9322447
    Abstract: The present application provides a method for adjusting spring characteristics of a spring to desired spring characteristics. In the adjusting method of the present application, first, the spring is compressed until a “load-displacement” measurement line obtained by measuring the load applied to the spring and the displacement of the spring meets a “load-displacement” target line determined based on “load-displacement” characteristics of the spring and the desired spring characteristics (S10-S14). Next, the spring is expanded such that the load applied to the spring decreases along the “load-displacement” target line (S18).
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: April 26, 2016
    Assignee: CHUO HATSUJO KABUSHIKI KAISHA
    Inventors: Shinsuke Okura, Shuji Kamiya, Yukimasa Kabeya, Junya Narukawa, Takashi Goto
  • Patent number: 9068615
    Abstract: A spring has a Rockwell hardness of HRC 53 to HRC 56 and a dislocation density ? (cm?2) that satisfies the formula ??1.4×1011×H?6.7×1012 in the Rockwell hardness range of HRC 53 to HRC 56, in which H is the Rockwell hardness. The spring also has a prior austenite grain size number of 10 or higher.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: June 30, 2015
    Assignee: CHUO HATSUJO KABUSHIKI KAISHA
    Inventors: Takanori Kuno, Masami Wakita
  • Publication number: 20150137438
    Abstract: A method for coating an extension spring. A helical extension spring is provided. The extension spring has a plurality of coils disposed along a longitudinal axis between a first end portion and a second end portion with the coils touching each other in absence of force acting on the spring that is sufficient for extending the same. The spring is then extended to an extended position. In the extended position the spring has a predetermined distance between successive coils. In the extended position a coating material is disposed onto the surface of the spring such that the coating material is disposed onto a surface portion of the spring where the coils touch each other in absence of extension.
    Type: Application
    Filed: March 27, 2014
    Publication date: May 21, 2015
    Applicant: REM ENTERPRISES INC.
    Inventors: Edward Robert Sonntag, Allan Ross Penner
  • Patent number: 9022369
    Abstract: A reverse coil head coil and innerspring has a generally cylindrical and helical wire form coil body and opposing coil ends which terminate on opposite sides of a reference plane that passes through the coil body. The reverse coil head coils are interconnected in a matrix to form an innerspring wherein only one terminal end of each coil is located at a perimeter of the innerspring. Variations in the number and pitch of helical turns of the coil body are also disclosed.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: May 5, 2015
    Assignee: Sealy Technology, LLC
    Inventors: Larry DeMoss, James A. Beamon, Brian M. Manuszak, Herman F. Fisher, Joseph Truskolasky, David J. Pleiman, Dan Olsen, Randy Sizemore
  • Patent number: 9010740
    Abstract: Coil, tube, and other structures configured with a plurality of individual coils, internal structures, legs or extensions with each having multiple cants per coil, internal structure, leg or extension, and wherein the cants formed therein allow for a load-deflection force when each is compressed. In addition, any horizontal or moment forces are substantially reduced and/or eliminated when a downward vertical force is applied, as minimal or no torsion is created in the individual coils, legs or extensions.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: April 21, 2015
    Assignee: Veloce Labs, LLC
    Inventor: Mark L. Jaster
  • Publication number: 20150068568
    Abstract: An opening spring for multiple fold automatic open-close umbrellas is revealed. The opening spring is disposed in a shaft to provide power for extending the shaft while opening the umbrella. The opening spring is formed by a wound wire with a constant wire diameter and having a plurality segments of coils with different outer diameters. A gradually changing part is disposed between two adjacent segments of coils. The coil outer diameter of the gradually changing part is reduced from top to bottom along the axial direction.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 12, 2015
    Inventor: Tsun-Zong Wu
  • Publication number: 20150054208
    Abstract: A compression spring is disclosed, which is configured to be used for various applications, and in particular for operate accessory linkages. Furthermore, a compression spring retention system is disclosed including a compression spring and a housing in which the compression spring is fixable. The compression spring includes a length of coiled wire having substantially a circular cross-sectional area, wherein at least a first end of the compression spring is formed as a retainer device that is configured to be compressed while being mounted into a recessed chamber of the housing and to expand when inserted into the recessed chamber in a way that the compression spring is fixed at the recessed chamber.
    Type: Application
    Filed: June 17, 2014
    Publication date: February 26, 2015
    Inventor: Jan ROJKO
  • Patent number: 8939438
    Abstract: This invention provides a helical spring formed of plastic material, comprising a pair of end coils situated at respective ends of said helical spring; at least one full pitch active coil between said pair of end coils; a pair of transition coils, each transition coil interconnecting an end of a respective end coil to an end of a respective proximate full pitch active coil, and having a varying pitch.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: January 27, 2015
    Assignee: Lee Spring Company LLC
    Inventors: Stephen Kempf, Albert Mangels, Subramanya Naglapura, Sean Diamond, Brian Moulder, Brian Straiton
  • Patent number: 8936236
    Abstract: A manufacturing method of a coil spring for an automobile suspension includes forming a material into a coil shape; performing a heat treatment step on the material; performing a warm shot peening step on the material, and performing a hot setting step on the material. By performing the warm shot peening step prior to the hot setting step, a stronger compressive residual stress is imparted in a direction along which a large tensile stress acts during actual use of the coil spring, thereby improving sag resistance and durability of the coil spring. A coil spring is also manufactured according to this method.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: January 20, 2015
    Assignee: Chuo Hatsujo Kabushiki Kaisha
    Inventors: Tomohiro Nakano, Takayuki Sakakibara, Takanori Kuno, Shingo Mimura, Masami Wakita
  • 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: 8919752
    Abstract: The systems and methods described herein include innerspring assemblies or innerspring cores for use with cushioning articles such as mattresses. The innerspring core may have one or more coil springs formed from a high-carbon steel wire alloyed with one or more suitable alloying elements such as titanium and copper and capable of imparting greater strength and durability to the innerspring core.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: December 30, 2014
    Assignee: Dreamwell, Ltd.
    Inventors: Michael S. DeFranks, William J. Ready, Jeremy B. Lynn
  • Publication number: 20140346721
    Abstract: There are provided: a seamless steel pipe formed from a cylindrical steel material billet through a hot isostatic extrusion step, wherein a depth of a contiguous flaw formed on an inner periphery surface and an outer periphery surface of the steel pipe is 50 nm or less; a hollow spring obtained by forming a hollow body in a shape of a coil or a bar or a bar with curved part from the seamless steel pipe made of spring steel and applying a surface treatment to the hollow body so that the hollow body has compressive residual stress; and a method for producing seamless steel pipe including: a billet molding step; a first heating step; a hot isostatic extrusion step; a second heating step; an extension step; a third heating step; and a pickling step.
    Type: Application
    Filed: August 7, 2014
    Publication date: November 27, 2014
    Inventors: Kotaro TOYOTAKE, Koji IWAYA, Tomoyuki MINAMI, Noritoshi TAKAMURA
  • Patent number: 8895109
    Abstract: The invention describes a coated spring for mattresses that comprises a helical compression spring and a wrapping in the form of a bag containing the spring, wherein the bag containing the spring is injected with a polymeric reaction mixture, which after reacting or curing produces a polymeric foam, preferably of flexible polyurethane up to a desired volume in order to cause the spring to change its flexion or compression properties, as well as the method for its manufacturing and its use in the manufacturing of mattresses of different kinds.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: November 25, 2014
    Inventor: Leon Blanga Cohen
  • Publication number: 20140329607
    Abstract: A spring includes at least one spring portion that extends over an arc of at least 90° when projected onto a cross-sectional area perpendicular to a force direction of the spring in an unloaded condition thereof. The spring portion has an elliptical shape in the projection. A system including one or more springs is also described.
    Type: Application
    Filed: May 1, 2014
    Publication date: November 6, 2014
    Inventors: Stojan CEGAR, Erwin Wack
  • Publication number: 20140315673
    Abstract: A spring, especially for use in a belt tensioning device, with a number of at least 1.25 and at a maximum 2.5 coils, which extend around a spring axis A8, wherein a first coil end 42 has an axial offset Va relative to a first coil region 48, arranged at an angle of 360° around the spring axis A8, and wherein a second coil end 49 has an radial offset Vr relative to a second coil region 50 arranged at an angle of 360° around the spring axis A8. A belt tensioning device and an assembly with such a belt tensioning device include such a spring.
    Type: Application
    Filed: March 13, 2014
    Publication date: October 23, 2014
    Applicant: MUHR UND BENDER KG
    Inventors: Matthias Zacker, Joachim Jud, Simon Pfeifer, Manfred Jung
  • Patent number: 8864118
    Abstract: A device for stabilizing a launcher, in particular during the firing of camouflage bodies and decoy flares or other systems in which vibrations can build up, thereby subjecting them to shocks. The device is a stabilizer (4) provided on a known damping system (1), for example a metal cable damper etc., into which a re-adjustable system (10), consisting of a rod (11) provided with a curved portion or groove, a pre-loaded device (12), a type of pressure part (13) and a type of pawl part (14), is placed. Pressure can be exerted on the curved portion of the rod (11) by the pre-loaded device (12) using the pressure part (13) and pawl part (14).
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: October 21, 2014
    Assignee: Rheinmetall Waffe Munition GmbH
    Inventor: Oliver Frank
  • Publication number: 20140306389
    Abstract: A compression coil spring having high durability can be provided by using an inexpensive wire material. The present invention provides a compression coil spring formed by using a steel wire material, the steel wire material made of C: 0.45 to 0.85 mass %, Si: 0.15 to 2.5 mass %, Mn: 0.3 to 1.0 mass %, Fe and inevitable impurities as a remainder, and a circle-equivalent diameter of 1.5 to 9.0 mm, wherein hardness of a freely selected cross-section of the wire material is 570 to 700 HV, and at an inner diameter side of the coil spring, unloaded compressive residual stress at a depth of 0.2 mm from a surface in an approximate maximal main stress direction in a case in which compressive load is loaded on the spring is 200 MPa or more, and unloaded compressive residual stress at a depth of 0.4 mm from surface is 100 MPa or more.
    Type: Application
    Filed: July 26, 2012
    Publication date: October 16, 2014
    Applicant: NHK SPRING CO., LTD.
    Inventors: Kazuya Ikai, Tohru Shiraishi, Yuichiro Ono, Yoshiki Ono
  • Patent number: 8857801
    Abstract: A composite coil spring includes a coil body that extends along a coiled axis. The coil body includes a core and a plurality of fiber layers impregnated with a polymer material. The plurality of fiber layers are arranged around the core at different radial distances from the coiled axis. Each of the plurality of fiber layers extends around the coiled axis at an oblique fiber angle to the coiled axis. Each of the plurality of fiber layers includes a number of fibers that is a product of a common base number of fibers multiplied by a positive non-zero integer from a set of positive non-zero integers. The positive non-zero integer of at least one of the plurality of fiber layers is different from the positive non-zero integer of at least one other of the plurality of fiber layers.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: October 14, 2014
    Assignee: MSSC US
    Inventor: Jun Yoshioka
  • Publication number: 20140298679
    Abstract: A foot or shoe-borne apparatus comprises a spacer and spring assembly that can be oriented in two orientations. In the first orientation, the assembly is under the sole of a user's foot or shoe such that the assembly acts against the ground for enhanced locomotion for that foot or shoe. In the second orientation, the assembly is positioned away from the sole of the foot or shoe, thereby enabling ordinary use of that foot or shoe.
    Type: Application
    Filed: April 9, 2014
    Publication date: October 9, 2014
    Inventor: Riccardo Brun del Re
  • Patent number: 8833071
    Abstract: The invention relates to an adaptive spring, damping or hinge system having functional characteristics that are adaptable to various operating conditions, with provision being made for at least one adaptive spring system or a damping or hinge system formed of shape memory material to be activatable in such a manner that by subjecting it to heating or to an annealing treatment, the spring, damping or hinge characteristics may be modified in operation condition, and/or that at least one variable actuator element formed of a shape memory material is provided and is capable of changing the spring, damping or hinge characteristics of the adaptive system.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: September 16, 2014
    Assignee: FG-Innovation GmbH
    Inventors: Sven Langbein, Alexander Czechowicz
  • Patent number: 8800980
    Abstract: A spring structure includes a clockwise spring and a counterclockwise spring that are coaxially arranged under a state in which a spring seat is interposed between a lower end portion of the clockwise spring and an upper end portion of the counterclockwise spring. An upper end portion of the clockwise spring is supported on an upper spring seat portion, and a lower end portion of the counterclockwise spring is supported on a lower spring seat portion.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: August 12, 2014
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Seiji Sawai, Yutaka Yamazaki
  • Patent number: 8789817
    Abstract: A high-strength spring steel and a spring are provided that have superior corrosion fatigue strength. The spring steel comprises, in mass percent, 0.35-0.55% C, 1.60-3.00% Si, 0.20-1.50% Mn, 0.10-1.50% Cr, and at least one of 0.40-3.00% Ni, 0.05-0.50% Mo and 0.05-0.50% V, the balance being substantially Fe and incidental elements and impurities.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: July 29, 2014
    Assignee: Chuo Hatsujo Kabushiki Kaisha
    Inventors: Takanori Kuno, Tomohiro Nakano, Takayuki Sakakibara, Masami Wakita, Shingo Mimura
  • Patent number: 8740196
    Abstract: A linkage comprises a first rounded end providing a complimentary profile configured to mate with an inner radius of a loop element in a first drawbar spring, and a second rounded end opposite the first rounded end. The second rounded end provides a complimentary profile configured to mate with an inner radius of a loop element in a second drawbar spring. The linkage is configured to be positioned between the loop element in the first drawbar spring and the loop element in the second drawbar spring such that the first rounded end is mated with the loop element in the first drawbar spring and the second rounded end is mated with the loop element in the second drawbar spring to mechanically couple the first drawbar spring in series with the second drawbar spring.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: June 3, 2014
    Inventor: Jay Rodger Elrod
  • Patent number: 8741216
    Abstract: Disclosed is steel for a leaf spring with high fatigue strength containing, in mass percentage, C: 0.40 to 0.54%, Si: 0.40 to 0.90%, Mn: 0.40 to 1.20%, Cr: 0.70 to 1.50%, Ti: 0.070 to 0.150%, B: 0.0005 to 0.0050%, N: 0.0100% or less, and a remainder composed of Fe and impurity elements. Also disclosed is a high fatigue-strength leaf spring part obtained by forming the steel. The steel for a leaf spring is prepared to have a Ti content and a N content to satisfy a relation of Ti/N?10. Preferably, the leaf spring part is subjected to a shot peening treatment in a temperature range of the room temperature through 400° C. with a bending stress of 650 to 1900 MPa being applied to it.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: June 3, 2014
    Assignee: NHK Spring Co., Ltd.
    Inventors: Atsushi Sugimoto, Kiyoshi Kurimoto, Akira Tange, Yurika Goto, Mamoru Akeda
  • Patent number: 8720872
    Abstract: Innersprings with alternating coil spring orientations have columns of interconnected coils in which the axial orientation of the coils alternates one hundred and eighty degrees column to column.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 13, 2014
    Assignee: Sealy Technology, LLC
    Inventors: Larry K. DeMoss, Brian M. Manuszak, James A. Beamon
  • Publication number: 20140103903
    Abstract: An object of the present invention is to provide a helical spring having a small spring constant, a connector, an electrode and an electrometer. Specifically, the spring constant is 2.0 gf/mm or smaller until the spring is compressed to 50% or more in an axis direction.
    Type: Application
    Filed: March 4, 2013
    Publication date: April 17, 2014
    Inventor: Yuji NAKAMURA
  • Patent number: 8689380
    Abstract: A spring assembly including a helical coil formed from a multi-strand cord.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: April 8, 2014
    Assignee: Dreamwell, Ltd.
    Inventors: Richard F. Gladney, Bernard W. Kuchel, Michael S. DeFranks
  • Patent number: 8683641
    Abstract: The invention pertains to a novel scraper assembly having a plurality of interchangeable scraper heads and handles and corresponding method for use. The scraper assembly further comprises a plurality of abrasive mechanisms, namely spring bristles, coiled springs, chainmail abraders and wire cloth abraders capable of effectively cleaning a surface without scoring or otherwise damaging the surface. The invention may be particularly useful for cleaning grills and ovens. Additionally, the invention may also be useful for shaping, adding texture to, stripping materials from or otherwise preparing a surface, including wood, metal or ceramic surfaces.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: April 1, 2014
    Assignee: MIW Associates, LLC
    Inventors: Marvin Weinberger, Tucker J. Marion
  • Patent number: 8684342
    Abstract: A coil spring has a spring wire wound in a coil shape having an outer diameter side portion and an inner diameter side portion on a peripheral shape in a cross section thereof, one of the outer diameter side portion and inner diameter side portion formed in a semi-circular shape expressed by x2+y2=b2, the other thereof formed in a non-circular shape with a long diameter “a” and a short diameter “b” expressed by (x/a)?+(y/b)?=1, and value of the “?” set in a range of 1.85 to 2.45, and contact faces provided between the inner diameter side portion and the outer diameter side portion on the peripheral shape in the cross section such that each contact face comes into contact with a contact face of an adjacent coil in an axial direction along an axis line of the coil spring.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: April 1, 2014
    Assignee: NHK Spring Co., Ltd.
    Inventors: Daniel Fenioux, Nobuharu Kato, Takeshi Yabushita
  • Publication number: 20140059901
    Abstract: A spring assembly for a latch mechanism includes a spring, a first support, and a second support. The spring includes a first end, a second end, and a plurality of coils extending therebetween. The coils define an internal helical surface. The first support is configured to be coupled to a first pivoting member. The first support includes a grooved surface for threadingly engaging at least a portion of the internal helical surface of the spring proximate the first end. The second support is configured to be coupled to a second pivoting member. The second support includes a grooved surface for threadingly engaging at least a portion of the internal helical surface of the spring proximate the second end.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 6, 2014
    Inventors: Richard L. Nicoson, Troy Hottmann
  • Publication number: 20140035211
    Abstract: A resilient member including a base material and a corrosion resistant coating disposed on the base material. The base material is cold-worked subsequent to application of the coating to the base material in order to transition the base material from having a first cross-sectional area to a second cross-sectional area. The second cross-sectional area is less than the first cross-sectional area.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 6, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: William M. Bailey, Paul J. Agosta
  • Publication number: 20140021666
    Abstract: A composite coil spring includes a coil body that extends along a coiled axis. The coil body includes a core and a plurality of fiber layers impregnated with a polymer material. The plurality of fiber layers are arranged around the core at different radial distances from the coiled axis. Each of the plurality of fiber layers extends around the coiled axis at an oblique fiber angle to the coiled axis. Each of the plurality of fiber layers includes a number of fibers that is a product of a common base number of fibers multiplied by a positive non-zero integer from a set of positive non-zero integers. The positive non-zero integer of at least one of the plurality of fiber layers is different from the positive non-zero integer of at least one other of the plurality of fiber layers.
    Type: Application
    Filed: July 18, 2012
    Publication date: January 23, 2014
    Inventor: Jun Yoshioka
  • Publication number: 20140015179
    Abstract: An arcuate spring having a plurality of coils which are configured and dimensioned to provide an arcuate shape to the spring and being substantially free of internal stresses which would tend to urge the coils into linear alignment. The spring is designed to function under load conditions while maintaining its natural arcuate shape. The spring is can be heated by use of an induction heating process.
    Type: Application
    Filed: July 5, 2013
    Publication date: January 16, 2014
    Applicant: Barnes Group Inc.
    Inventors: Eugenio Ferreira Cunha, Sergio Roveri
  • Publication number: 20140010704
    Abstract: To provide a copper alloy wire being a filamentary material of a copper alloy containing, in percent by mass, Ni: 3.0 to 15.0%, Al: 0.5 to 5.0%, and Si: 0.1 to 3.0%, with the remainder being composed of Cu and incidental impurities, which is provided with the tensile strength (?B) of 900 to 1300 MPa and electrical conductivity of 10 to 22% IACS and, in addition to that property, satisfies an intensity ratio of A:B:C of 1.0:1.2 to 6.0:2.2 to 8.
    Type: Application
    Filed: December 13, 2011
    Publication date: January 9, 2014
    Applicants: Nippon Seisen Co., Ltd.
    Inventors: Kiyohito Ishida, Takayuki Akizuki
  • Publication number: 20140008852
    Abstract: A spring with superior fatigue resistance is provided by decreasing the material cost while simplifying the production process. Disclosed is a spring including: a composition consisting of, by mass %, 0.5 to 0.7% of C, 1.0 to 2.0% of Si, 0.1 to 1.0% of Mn, 0.1 to 1.0% of Cr, not more than 0.035% of P, not more than 0.035% of S, and the balance of Fe and impurities; a structure including not less than 95% of tempered martensitic structure; a compressive residual stress layer formed to a depth of 0.35 mm to D/4, in which D (mm) is a diameter; the compressive residual stress layer having maximum compressive residual stress of 800 to 2000 MPa; a center portion with Vickers hardness of 550 to 700 HV; and a high hardness layer with greater hardness than the center portion.
    Type: Application
    Filed: March 1, 2012
    Publication date: January 9, 2014
    Applicant: NHK SPRING CO., LTD.
    Inventors: Takeshi Suzuki, Yoshiki Ono, Shimpei Kurokawa
  • Patent number: 8590867
    Abstract: A canted coil spring includes a plurality of canted coils generally canted relative to a centerline extending through the coils. At least one coil when viewed in the direction of the centerline appears to have a non-elliptical shape and a non-circular shape when the at least one coil is in the unbiased state. The plurality of coils is generally canted at a first coil angle relative to the center line. The at least one coil includes at least one section canted at a second coil angle relative to the centerline. The second coil angle is different from the first coil angle when the at least one coil is in an unbiased state.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: November 26, 2013
    Assignee: Bal Seal Engineering, Inc.
    Inventor: Gordon Leon
  • 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: 20130292890
    Abstract: In an end sealing step, an end is sealed by which the core material of the end of a spring member is gathered by machining. For example, a squeezing roller is moved in an axial direction as necessary, while the end of the spring member is pressed to the inside in a radial direction by the squeezing roller. As a result, the end of the spring member is sealed and therefore, it is not necessary to use another member such as a lid member. For example, the end sealing step can be immediately carried out after an inner surface processing step. In a coil forming step after the end sealing step, formation of clearance can be prevented at the end even if the end of the spring member is gripped and the spring member is wound around the rod.
    Type: Application
    Filed: November 24, 2011
    Publication date: November 7, 2013
    Applicant: NHK SPRING CO., LTD.
    Inventors: Takashi Yajima, Kenichiro Morino
  • Publication number: 20130285299
    Abstract: A spring has a Rockwell hardness of HRC 53 to HRC 56 and a dislocation density ? (cm?2) that satisfies the formula ??1.4×1011×H?6.7×1012 in the Rockwell hardness range of HRC 53 to HRC 56, in which H is the Rockwell hardness. The spring also has a prior austenite grain size number of 10 or higher.
    Type: Application
    Filed: August 23, 2011
    Publication date: October 31, 2013
    Applicant: CHUO HATSUJO KABUSHIKI KAISHA
    Inventors: Takanori Kuno, Masami Wakita
  • Publication number: 20130270755
    Abstract: The systems and methods described herein include innerspring assemblies or innerspring cores for use with cushioning articles such as mattresses. The innerspring core may have one or more coil springs formed from a high-carbon steel wire alloyed with one or more suitable alloying elements such as titanium and copper and capable of imparting greater strength and durability to the innerspring core.
    Type: Application
    Filed: June 13, 2013
    Publication date: October 17, 2013
    Inventors: Michael S. DeFranks, William J. Ready, Jeremy B. Lynn
  • Publication number: 20130175394
    Abstract: An adjustable spring system includes an adjustment member adjustable relative to a coil spring to provide a desired number of unsupported coils. A method of adjusting the spring rate of the spring includes detecting a condition, and driving the adjustment member with an actuator in response to the detected condition. An effective length of the spring is changed with the adjustment member.
    Type: Application
    Filed: January 10, 2012
    Publication date: July 11, 2013
    Inventor: Dale O. Cipra
  • Patent number: 8474805
    Abstract: The systems and methods described herein include innerspring assemblies or innerspring cores for use with cushioning articles such as mattresses. The innerspring core may have one or more coil springs formed from a high-carbon steel wire alloyed with one or more suitable alloying elements such as titanium and copper and capable of imparting greater strength and durability to the innerspring core.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: July 2, 2013
    Assignee: Dreamwell, Ltd.
    Inventors: Michael S. DeFranks, William Jud Ready, Jeremy Lynn
  • Patent number: 8460140
    Abstract: A belt tensioner includes a support housing at least in part defining a spring cavity and an arm pivotally attached to the support housing. A spring is located in the spring cavity and is operatively connected to the arm and the support housing to bias the arm about a pivot axis toward an unloaded position relative to the support housing. A damping member includes a hub and deflectable, force-applying elements that are connected to and spaced apart about a periphery of the hub. The force-applying elements are biased toward a contact surface of the arm to apply a frictional force between the contact surface and the force-applying elements to impede rotation of the arm relative to the support housing.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: June 11, 2013
    Assignee: Dayco IP Holdings, LLC
    Inventors: Robert C. Joslyn, James G. Quintus, Randy C. Foster
  • Publication number: 20130127100
    Abstract: Provided are: a steel wire rod material for a high-strength spring, which does not undergo the increase in deformation resistance arising from the increase in hardness and can exhibit good wire-drawing processability and the like even when a heat treatment, which deteriorates productivity, is eliminated or a simplified and rapid heat treatment is employed instead; a useful method for producing the steel wire rod material for a high-strength spring; a high-strength spring produced using the steel wire rod material for a high-strength spring as a material; and others. This steel wire rod material for a high-strength spring is a steel wire rod material that has been hot-rolled already, and has a texture having a specified chemical composition and mainly composed of pearlite, wherein the average value (Pave) of the pearlite nodule size numbers and the standard deviation (P?) of the pearlite nodule size numbers fulfill the following formulae (1) and (2), respectively: 9.5?Pave?12.0;??(1) and 0.2?P??0.
    Type: Application
    Filed: August 30, 2011
    Publication date: May 23, 2013
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Tomonobu Ishida, Nao Yoshihara, Shuhei Kitamura
  • Publication number: 20130127099
    Abstract: The present specification provides a spring of greater strength. A spring 2 disclosed in the present specification comprises a steel material layer 12 and a compound layer 14 containing nitride and formed on a surface of the steel material layer 12. The steel material layer 12 contains, in mass percent, C: 0.55 to 0.75, Si: 1.50 to 2.50, Mn: 0.30 to 1.00, Cr: 0.80 to 2.00, W: 0.05 to 0.30, and iron and inevitable impurities as remainders. Carbide precipitated in the steel. material layer has an average length of 0.12 ?m or less and an average width of 0.04 ?m or less.
    Type: Application
    Filed: June 21, 2011
    Publication date: May 23, 2013
    Applicant: CHUO HATSUJO KABUSHIKI KAISHA
    Inventors: Shingo Mimura, Takayuki Sakakibara
  • Publication number: 20130099435
    Abstract: A coil spring has an effective section that functions as a spring when a load in a coil axis direction has been applied, end turn sections that are formed on both ends of the effective section, and rising sections that are formed between the effective section and the end turn sections, wherein the rising sections are formed in such a way that, when ?1 represents the pitch angle of the rising sections and ?2 represents the pitch angle of the effective section, pitch angle ?1> pitch angle ?2 holds true in at least one of the rising sections.
    Type: Application
    Filed: June 23, 2011
    Publication date: April 25, 2013
    Applicant: MITSUBISHI STEEL MFG CO., LTD.
    Inventors: Takayuki Matsuoto, Kazuhisa Michibata, Satoshi Ieiri, Takashi Yajima