Longitudinal Variation Patents (Class 57/206)
  • Publication number: 20140033906
    Abstract: Disclosed is a tow warp construction and a process for forming such tow warp construction where such tow warp construction has a longer life span, that is retains its useful dimensions and characteristics longer than known tow warp constructions and consequently has a longer useful life span than known tow warp constructions.
    Type: Application
    Filed: February 6, 2012
    Publication date: February 6, 2014
    Applicant: HAMPIDJAN HF.
    Inventor: Hjortur Erlendsson
  • Publication number: 20110162414
    Abstract: The present disclosure is directed to a flexible filament that includes a length of material configured to be used in forming at least a portion of a textile product to have at least a portion of a visual pattern that is visible on at least one of a first side or a second side of the textile product. The material includes a plurality of stitch indicators formed on the material to separate the material into a plurality of segmented regions, at least one of the stitch indicators or the segmented regions forming at least the portion of the visual pattern visible on the at least one of the first side or the second side of the textile product.
    Type: Application
    Filed: January 7, 2010
    Publication date: July 7, 2011
    Inventor: Zoe O. Smith
  • Patent number: 7441573
    Abstract: The present invention relates to a pneumatic tire having a component including at least one diene based rubber and discontinuous textile cord having at least two textile yarns, wherein the cord is partially untwisted.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: October 28, 2008
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Carlo Kanz, René François Reuter
  • Patent number: 7309667
    Abstract: A fabric includes mutually transverse thread systems, with at least one of the thread systems including a differential shrinkage yarn C. The shrinkage yarn C has at least one effect component A that irreversibly elongates itself upon heat treatment, and at least one shrinkage component B that shortens itself upon heat treatment. The components A and B are bound together by nodes, wherein the number (y) of nodes per meter in the yarn C is predetermined as a function of the yarn count (x) of the transverse thread system so that the number (y) of nodes exceeds a minimum value and increases proportionally above the minimum value as a function of the yarn count (x).
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: December 18, 2007
    Assignee: Deutsche Institute fur Textilund Faserforschung Stuttgart
    Inventors: Stefan Schindler, Helmut Weinsdörfer, Jürgen Wolfrum
  • Patent number: 7309666
    Abstract: A silicone coated fabric having a base woven fabric that is formed from a synthetic fiber weaving yarn that has a yarn size of from 100 to 270 dtex, and a weaving size expressed by product calculated by multiplying the yarn size of a weaving yarn and a weave density (ends or picks/2.54 cm) of from 10,000 to 25,000 (dtex·ends (or picks)/2.54 cm) in both the warp direction and the weft direction, a silicone being applied to the woven fabric in an amount of from 5 to 25 g/m2, and having on one side a uniform silicone coating layer forming part of the silicone mentioned above. The silicone coated fabric is a lightweight coated fabric that shows improved heat resistance, improved flexibility and an improved low coefficient of friction as well as particularly improved burning resistance. The fabric can therefore be used for producing lightweight and compactly storable airbags that suppress bursting starting from a burnt-through-hole, and that shorten a deployment time.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: December 18, 2007
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Hideaki Ishii, Toshirou Nagaoka
  • Patent number: 6805178
    Abstract: A metallic cord is composed of metallic filaments gathered together, the metallic filaments include at least one patterned filament which is, before gathered together, two-dimensionally waved so as to have a wave form defined by plural kinds of cycles different from each other in respect of the wave length and/or wave height. A pneumatic tire includes the metallic cords as its carcass cords.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: October 19, 2004
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Shinichi Miyazaki, Kazumi Yamazaki, Osamu Toda
  • Patent number: 6705069
    Abstract: A self-set yarn made from bicomponent fibers forms helical crimps that lock in twist and form bulk.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: March 16, 2004
    Assignee: Honeywell International Inc.
    Inventors: Arthur Talley, Arnold E. Wilkie, Karl H. Buchanan
  • Patent number: 6695026
    Abstract: A pneumatic tire comprises a tread reinforcing belt made of metallic cords, each of the metallic cords is made up of six to twelve metallic filaments whose diameter is not less than 0.15 mm but less than 0.25 mm, the six to twelve metallic filaments are grouped into a plurality of bunches each including two to four filaments, the filaments of each bunch are twisted together at a first twisting pitch, the bunches are twisted together into the cord at a final twist pitch Pc of from 10 to 40 mm, the first twisting pitch is more than the final twist pitch, and the bunches each include at least one waved filament which is two-dimensionally waved at wave pitches Pw in a range of from 5 to 30 times the diameter (d) of the filament and a wave height (h) in a range of from 0.2 to 3.0 times the diameter (d).
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: February 24, 2004
    Assignees: Sumitomo Rubber Industries, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Shinichi Miyazaki, Kazumi Yamazaki, Osamu Toda, Yasuo Sakai
  • Patent number: 6582816
    Abstract: A process for combining dyed or melt pigmented textile denier accent yarns in small yarn sizes, into a small building block carpet denier bundle to achieve a face yarn bundle having a wide range of special color effects and appearance, not attainable by manufacture of multi-colored carpets from carpet denier fibers alone. The carpet denier singles yarns are drawn, textured and air-jet entangled. At least one textile denier singles yarns, which is preferably a yarn having some degree of orientation, is then entangled with the carpet denier singles yarn, and the bundle is then wound up. The final yarn bundle may contain one or more fiber types, as well as at least one anti-static filament. The two types of singles yarn, i.e., the carpet denier and textile denier types, optionally have the same or different fiber cross-sections.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: June 24, 2003
    Assignee: Prisma Fibers, Inc.
    Inventors: Lawrence E. Rasnick, Jr., Arnold L. Belcher, Jr.
  • Patent number: 6554035
    Abstract: A heavy duty pneumatic tire has a belt disposed radially outside a carcass and radially inside a tread portion, the belt having at least one ply of at least one high-elongation steel cord, the high elongation steel cord is formed by twisting at least three waving steel filaments together to form a core and a sheath surrounding the core, the waving filaments change place repeatedly along the longitudinal direction of the cord such that one of the filaments forms the core in a portion, but in a different portion of the cord, the same filament forms part of the sheath, thereby defining a plurality of first parts with the core and a plurality of second parts without the core which are disposed alternately in the longitudinal direction of the cord, and the elongation at break of the high-elongation steel cord is in the range of from 4 to 10%, whereby the resistance to breakage of the steel belt cords is improved and it becomes possible to decrease the belt weight without deteriorating various performances.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: April 29, 2003
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Rie Miyawaki, Masatsugu Kohno
  • Patent number: 6458725
    Abstract: An airbag base fabric is formed of thermoplastic synthetic filament yarns, wherein the yarn strength of the filament yarn is 7.0 g/denier or more and the fineness of the filament yarn is 200-250 denier. The fabric is thin and lightweight, which is thus excellent in accommodation, and is effective in reducing the size and weight of an airbag module.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: October 1, 2002
    Assignee: Takata Corporation
    Inventors: Yasushi Masuda, Akira Kokeguchi, Ryosuke Nakanishi
  • Patent number: 6442922
    Abstract: Disclosed herein are a tire-reinforcing steel cord and a pneumatic radial tire using the same. The tire-reinforcing steel cord includes an inner layer consisting of 3 filaments and an outer layer consisting of 7 or 8 filaments and surrounding the inner layer. The inner layer and the outer layer are twisted in such a manner that they have the same twist direction and the same twist pitch length, whereby the number of the twisting steps in the manufacture of the steel cord is reduced, and also the penetration of rubber into the steel cord is improved such that the steel cord has an improved durability upon application to tires.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: September 3, 2002
    Assignee: Hankook Tire Co., Ltd.
    Inventor: Yong Sig Han
  • Patent number: 6440555
    Abstract: The present invention provides a package, of a false twist yarn composed of polytrimethylene terephthalate fibers, characterized in that a hardness and a winding density of the package and the number of crimps of the false twist yarn thus taken up simultaneously satisfy the following conditions (1), (2) and (3): (1) 70≦hardness≦90 (2) 0.6 g/cm3≦winding density≦1.0 g/cm3 (3) hardness×the number of crimps≧520 The package of the present invention maintains a favorable package shape and is excellent in unwinding property, whereby a high-quality knit or woven fabric is obtainable.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: August 27, 2002
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Yasunori Yuuki, Shoichi Akita
  • Patent number: 6412263
    Abstract: A reinforcing steel cord for rubber products, such as steel belted radial tires or conveyor belts, is disclosed. This steel cord is improved in rubber penetration and ageing adhesive force relative to the rubber material. The steel cord is formed by twisting a plurality of brass coated external element wires around a flat and spirally twisted core, with the twisted direction of the core being the same as or opposite to that of the resulting steel cord. In the steel cord, the pitch of the twisted core is set to allow the core to be twisted 0.2 to 2 times within the pitch of the cord, thus preferably forming sufficient interspaces between the core and the external wires in addition to the interspaces between the external wires.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: July 2, 2002
    Assignee: Hongduk Steel Cord Co., Ltd.
    Inventors: Byung-Ho Lee, Seung-Ho Lim
  • Patent number: 6318062
    Abstract: A wire twisting machine and method provide a randomly varying lay to pairs of twisted wires forming a cable. A pair of wires are fed into a motor driven bow mechanism which twists the wires at a given rate of speed. The bow winding speed is sensed to provide a signal to a control system employing a computer which generates a randomly varying signal between a selected minimum and maximum range. The random signal is applied to an oscillator which provides a varying frequency signal to a power supply unit. A pulsed direct voltage signal then controls a stepping motor which applies the randomly varying lay signal to vary the speed of the capstan winding the wires with respect to the independent bow speed. This varies the length of lay of the twisted wires within controlled limits.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: November 20, 2001
    Assignee: Watson Machinery International, Inc.
    Inventor: John Doherty
  • Patent number: 6260343
    Abstract: Strands and wire ropes composed of materials such as high carbon steels and stainless steels can be provided in a compacted, mechanically stress relieved and thermally stress relieved condition. The wires are compacted during stranding to form the individual strands of the wire ropes. The wires can be thermally stress relieved prior to stranding to remove tensile residual stresses. Compaction produces a compressive residual stress state in the strands which increases fatigue resistance. The strands can be thermally stress relieved subsequent to closing. The wires and strands can be heated using a process such as induction heating. The wire ropes can be torque balanced or rotation resistant. The wire ropes have high strength, a high strength-to-weight ratio and enhanced fatigue life. Stainless steel wire ropes also provide corrosion resistance.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: July 17, 2001
    Assignee: Wire Rope Corporation of America, Incorporated
    Inventor: Bamdad Pourladian
  • Patent number: 6182432
    Abstract: A hauling cord (L) for pulling an electric power line or the like cable into a conduit has an elongate linear body (1) that is typically a monofilament of a thermoplastic resin. The cord is of a regular or irregular cross section with one or more helical ridges (2) that extend around, along and integral with the linear body between opposite ends of the linear body. The helical ridges are formed by drawing and twisting a raw material of the linear body, and may have either of or both the opposite ends made thinner and/or twisted stronger than the remaining portion so that the pitch between the adjacent ridges is reduced. The cross section renders the cord lighter in weight and more slender, and nevertheless its compression strength and tensile strength are improved.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: February 6, 2001
    Inventor: Minoru Takahashi
  • Patent number: 6089293
    Abstract: A reinforcement ply for an elastomeric article comprises a plurality of parallel extensible reinforcing members laid at a substantially constant end count perpendicular to their longitudinal direction, the ply having different extensibilities in the longitudinal direction of the reinforcing members in different parts of the ply. The reinforcing members are preferably made such that they each have at least one filament which is displaced perpendicularly from the longitudinal centerline of the reinforcing member in one part of the reinforcing member compared to another part. A tire may include the reinforcement ply as a hoop or band in the ground contacting tread region.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: July 18, 2000
    Assignee: Sumitomo Rubber Industries Ltd.
    Inventor: Kevin John Niderost
  • Patent number: 6065518
    Abstract: A heavy duty pneumatic tire comprises a belt disposed radially outside a carcass and radially inside a tread portion, the belt comprising at least one ply of at least one high-elongation steel cord, the high-elongation steel cord being formed by twisting at least three waving steel filaments together to form a core and a sheath surrounding the core. The waving filaments change place repeatedly along the longitudinal direction of the cord such that one of the filaments forms the core in a portion, but in a different portion of the cord, the same filament forms part of the sheath, thereby defining a plurality of first parts with the core and a plurality of second parts without the core which are disposed alternately in the longitudinal direction of the cord. The elongation at break of the high-elongation steel cord is in the range of from 4 to 10%.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: May 23, 2000
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Rie Miyawaki, Masatsugu Kohno
  • Patent number: 6032450
    Abstract: A method for producing an electrically conductive compound yarn. An electrically conductive monofilament metal thread is spun into a compound yarn together with textile fibers. A compound yarn of this type is particularly suitable for producing woven and knit materials.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: March 7, 2000
    Assignee: Spoerry & Co. AG
    Inventor: Fritz Blum
  • Patent number: 5848524
    Abstract: A twisted yarn structure includes constituent fibers which extend between a surface and a core of the yarn structure so that at least one portion of each fiber is trapped and bound within the yarn structure by portions of other fibers. The fibers can extend cyclically or in random fashion between an inner region and an outer region of the yarn, and can be twisted in subgroups along the length of the yarn structure to be locked in position therein. To produce the yarn structure having fibers which cyclically extend between the inner and outer regions, the fibers of a drafted strand of fibers from front drafting rollers are spun and passed through an oscillating guide before being wound on a spindle.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: December 15, 1998
    Inventors: James Lappage, Nigel Anthony Gull Johnson, Owen Leslie Roger Hartshorn
  • Patent number: 5822973
    Abstract: A steel cord intended for use to reinforce rubber products is produced by drawing, into a steel filament of 0.10 to 0.40 mm in diameter and more than 3,000 N/mm.sup.2 in strength, a wire rod having a carbon content of more than 0.70% by weight, and twisting a plurality of such steel filaments together. Also a pneumatic tire is provided which employs in at least a portion of a reinforcing member thereof the steel cord improved in corrosion resistance and having an R.sub.1 /R.sub.0 ratio.times.100 which is less than 100, where R.sub.0 is the radius of spiral curvature of the spiraled steel filament resulting from untwisting said steel cord and R.sub.1 is the radius of spiral curvature of said steel filament of which the surface layer inside the spiral is removed by dissolving.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: October 20, 1998
    Assignee: Bridgestone Metalpha Corporation
    Inventors: Yoshikazu Kaneko, Naohiko Obana
  • Patent number: 5806296
    Abstract: A steel cord intended for use to reinforce rubber products is produced by drawing, into a steel filament of 0.10 to 0.40 mm in diameter and more than 3,000 N/mm.sup.2 in strength, a wire rod having a carbon content of more than 0.70% by weight, and twisting a plurality of such steel filaments together. Also a pneumatic tire is provided which employs in at least a portion of a reinforcing member thereof the steel cord improved in corrosion resistance and having an R.sub.1 /R.sub.0 ration.times.100 which is less than 100, where R.sub.0 is the radius of spiral curvature of the spiraled steel filament resulting from untwisting said steel cord and R.sub.1 is the radius of spiral curvature of said steel filament of which the surface layer inside the spiral is removed by dissolving.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: September 15, 1998
    Assignee: Bridgestone Metalpha Corporation
    Inventors: Yoshikazu Kaneko, Naohiko Obana
  • Patent number: 5772809
    Abstract: A pneumatic tire comprises a carcass toroidally extending between a pair of bead portions and a belt arranged outside the carcass in a radial direction of the tire and composed of at least one belt layer, in which the belt layer is made from a plurality of steel cords, each cord being formed by twisting 2 to 4 filament bundles each consisting of two steel filaments paralleled with each other so as to have a structure that major axes of the filament bundles constituting the cord are set toward substantially the same direction. In the belt layer, the major axes of the filament bundles in the cords constituting the belt layer are arranged substantially in a row in a widthwise direction of the belt.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: June 30, 1998
    Assignee: Bridgestone Corporation
    Inventor: Manabu Yanagisawa
  • Patent number: 5707467
    Abstract: A high elongation compact helical steel cord with a high degree of elongation at break of not less than 5% has a (1.times.n) structure comprising three or more base wires which are helically preformed at a predetermined pitch and which are twisted in the same direction and at the same pitch so that the ratio P/D of the cord diameter D to the twisting pitch P is in the range of 8-15 with the base wire preforming pitch being shorter than the cord twisting pitch. The finished cord has a helical composite structure with its elongation under a load of 35 kgf/mm.sup.2 being 0.71%-1.00% and that under a load of 70 kgf/mm.sup.2 being 1.18%-1.57%. A radial tire is reinforced with the steel cord preferably as a steel belt cord. An apparatus for making the steel cord is provided with revolving preformers on the wire introducing portion of a bunching machine such that the bunching machine is rotated in a direction reverse to the rotational direction of the revolving preformers.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: January 13, 1998
    Assignee: Tokyo Rope Manufacturing Co., Ltd.
    Inventors: Kazuo Matsumaru, Koichi Horikawa
  • Patent number: 5673546
    Abstract: A slip resistant shoe lace is produced by weaving or braiding a plurality of standard yarns with special yarns. The special yarns have a special effect in the form of slubs or eccentricities at regular intervals or throughout the length of the yarn and when woven or braided along with the standard yarns produce protuberances along the length of the shoe lace for resisting untying of the lace.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: October 7, 1997
    Inventors: Carl J. Abraham, Kimti Lal Gandhi
  • Patent number: 5661966
    Abstract: A steel cord effective for reinforcing a super-large off-road tire wherein strands made by simultaneously twisting together 3 to 6 steel wires in the same twisting direction with the same pitch length are used and the steel cord is made by twisting together 3 to 6 such strands in the same direction as the twisting direction of the strands and with the same pitch length. Each of the steel wires constituting the strands continuously has a small wavy pattern of a pitch length smaller than the lay length of the strands and therefore each of the strands has a compound pattern comprising a wavy pattern formed by the twisting and said small wavy pattern and in a gap is formed between steel wires each of the strands by the small wavy pattern. The lay length P.sub.1 of the steel cord is 8 to 15 times the steel cord diameter D and the elongation on breakage by tension of the steel cord is over 5%.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: September 2, 1997
    Assignee: Tokyo Rope Manufacturing Co. Ltd.
    Inventor: Kazuo Matsumaru
  • Patent number: 5619849
    Abstract: A method and apparatus for producing randomly variegated multiple strand yarn in twisting together two or more yarns at a plurality of yarn twisting stations. At each station a pneumatic twisting head is disposed in which randomly turbulent air currents are created in a chamber in the twisting head by compressed air flowing into the chamber from a manifold through bores in the twisting head, thereby randomly twisting together two or more yarns in the chamber. The yarns which have been twisted together are taken up over a plurality of traversing drums commonly mounted on a shaft which is driven by an alternating electric current motor controlled by a control device which operates to start and restart the motor on a predetermined cycle including a variation of the electrical input sufficient to result in randomly unpredictable inertia resistance of the traversing drums to rotational speed variation, thereby creating randomly unpredictable take-up of the yarns to produce non-uniform random twist in the yarns.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: April 15, 1997
    Assignee: Caress Yarns, Inc.
    Inventor: William A. McNeill
  • Patent number: 5579628
    Abstract: An entangled multifilament yarn made from high strength filaments having a tenacity of at least about 7 g/d, a tensile modulus of at least about 150 g/d and an energy-to-break of at least about 8 J/g. The yarn is used to make ballistic resistant articles.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: December 3, 1996
    Assignee: AlliedSignal Inc.
    Inventors: James J. Dunbar, Chok B. Tan, Gene C. Weedon, Thomas Y. Tam, Alfred L. Cutrone, Elizabeth S. Bledsoe
  • Patent number: 5434003
    Abstract: An entangled multifilament yarn, preferably an entangled multifilament polyamide yarn, and a knit fabric made from the same, wherein the yarn has an entanglement strength of at least about 4.5, an entanglement strength coefficient of variance of less than about 1.10, and an average entanglement length for each entanglement of at least about 11.0 mm. The yarn has a knitting performance of at least 4,000 racks/defect.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: July 18, 1995
    Assignee: AlliedSignal Inc.
    Inventors: Robert W. Medeiros, Lisa K. Owen, Thomas Y. Tam, Samir Z. Abdalla
  • Patent number: 5423859
    Abstract: A bioabsorbable surgical suture which includes at least one multifilament yarn having at least one portion wherein the filaments of the yarn are entangled. The suture has a core formed by combining a length of the entangled yarn with a length of at least one other entangled yarn to form a plied yarn which is then entangled and twisted in a particular direction. This entangled and twisted yarn is then combined with another entangled and twisted yarn, both yarns having been twisted in the same direction. The combined yarns are then twisted together in the opposite direction to form a suture core.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: June 13, 1995
    Assignee: United States Surgical Corporation
    Inventors: Ilya Koyfman, Michael P. Chesterfield
  • Patent number: 5408819
    Abstract: A metal cord for reinforcing a rubber article is made by twisting three or more metal filaments. At least one or at most the total number minus two of the metal filaments have a larger shaping ratio in the diametrical direction of the cord than the other metal filaments. At least one of the metal filaments having a larger shaping ratio is kept out of contact at portions in the longitudinal direction with a metal filament or filaments arranged in juxtaposition at one side or both sides thereof. At least two adjacent ones of the metal filaments having a smaller shaping ratio are in contact with each other.
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: April 25, 1995
    Assignee: Sumitomo Electric Industries, Inc.
    Inventors: Yoshifumi Nishimura, Kenichi Okamoto
  • Patent number: 5358767
    Abstract: Textile structure useful as a reinforcement in the manufacture of composite materials is produced using technical yarns. At least some of the yarns are formed from three constituents, namely a substantially straight core, a relief yarn, and an independent binding yarn. The relief yarn is secured to the core by the binding yarn.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: October 25, 1994
    Assignee: Brochier S.A.
    Inventors: Bruno Bompard, Jean Charles Durand, Jean Paul Lamarie
  • Patent number: 5351470
    Abstract: A steel cord for reinforcing a high polymer material has a core formed by twisting three steel core filaments having a mutually equal diameter of 0.1 to 0.35 mm, and at least one sheath formed by twisting a plurality of steel sheath filaments having a mutually equal diameter of 0.1 to 0.35 mm and arranged around the core. The three core filaments are composed of one or two waving steel filaments each having waved portions apart from a longitudinal center line thereof, and an unwaving steel filament as a remainder. The clearances (T) between the waving steel filament and the unwaving steel filament are in a range of 0.15 to 0.6 times the diameter of the steel core filament. A sum total (M) of a mean void (m) between adjoining steel sheath filaments in each sheath is in a range of 5 to 35% of a sum total (N) of a mean center distance (n) between adjoining steel sheath filaments in each sheath.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: October 4, 1994
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Yasushi Shinmura
  • Patent number: 5336562
    Abstract: The invention relates to a novel type of polyolefine yarns with good performance in the manufacture of rugs and carpets, made-up by admixing polypropylene filaments with polyethylene filaments, and by subjecting said filaments mixture to a temperature of from 125.degree. C. up to 130.degree. C., which substantially equals the melting temperature of the polyethylene filaments, whereby said polyethylene filaments become melted while the polypropylene filaments, with higher melting point, remain solid and stable, and with said melting of the polyethylene filaments constituting welding points for said polypropylene filaments, bulking and shaping the resulting yarn.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: August 9, 1994
    Assignee: Pavco S.A.
    Inventor: Miguel Forero
  • Patent number: 5319915
    Abstract: A steel cord comprising a number (between 3 and 27) of element steel wires tightly twisted at a regular pitch P between 5 and 20 mm in the same direction. Each wire has a diameter d between 0.1 and 0.4 mm. At least one of the wires includes a spiral portion having a spiral pitch P1 between 0.1P and 0.7P and a spiral diameter d1 between d+2/100 mm and d+2/10 mm. At least one other wire includes a straight portion. At any cross section of the cord, 1/4 through 2/3 of the wires is/are spiral and the other wire/s is/are straight. The stretch of the cord under a load of 5 kg is between 0.10 and 0.40%. A method of producing a steel cord comprises supplying a number of element steel wires, forming at least part of at least one of the wires to be spiral, and tightly twisting the wires.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: June 14, 1994
    Assignee: Tokusen Kogyo Co., Ltd.
    Inventors: Yoshiro Kobayashi, Koichi Hinoura, Akihiro Nagamoto, Toshiaki Shimizu, Takanori Kobayashi
  • Patent number: 5307616
    Abstract: Method to provide a novel false twisted slub yarn by combining a core yarn and an effect yarn in a fluid tangling zone. The linear velocity of the effect yarn is raised to allow slubs to be produced in the combined yarn in an air jet apparatus. The slub yarn is then run through a commingling air jet after formation of the slubs to commingle the lean portion of the yarn between the slubs formed to prevent a strip back of the yarn during weaving and/or knitting.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: May 3, 1994
    Assignee: Milliken Research Corporation
    Inventors: Andre' M. Goineau, William F. Southerlin
  • Patent number: 5231820
    Abstract: A unique rope for use in commercial fishing comprising floating and sinking portions. The sinking portion has blended yarns made up of a blend of first and second non-metallic synthetic filaments in proportions to yield a sinking rope portion having a specific gravity greater than one. The sinking rope portion comprises strands having yarns of substantially the same diameter. The floating portion of the rope is formed by replacing selected ones of the blended yarns in each strand with yarns formed of a material having a specific gravity of less than one. The replacement yarns and the blended yarns are of the same diameter to enhance the integrity and strength of the rope.
    Type: Grant
    Filed: May 1, 1992
    Date of Patent: August 3, 1993
    Assignee: American Manufacturing Company, Inc.
    Inventor: George A. Berger
  • Patent number: 5195313
    Abstract: Described is a method for quantifying interlacing characteristics of multifilamentary yarn, having nodes of a length and a width comprising, (a) measuring the length (L) of at least one node, (b) measuring the width (W) of at least each node measured in step (a) and (c) determining the value of the node harshness from the ratio of L to W for each node measured in step (a).
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: March 23, 1993
    Assignee: BASF Corporation
    Inventor: Andrew M. Coons, III
  • Patent number: 5134840
    Abstract: A randomly entangled, plied yarn having a first yarn strand and a second yarn strand wherein at least one of the first yarn strand or the second yarn strand is unidirectionally twisted in a first direction of twist, the plied yarn having spaced-apart spliced zones along its length defining therebetween lengths of unspliced yarn having a ply twist in the opposite direction of the twist of the component yarn strands along the entire length of the plied yarn.
    Type: Grant
    Filed: May 3, 1990
    Date of Patent: August 4, 1992
    Inventors: Kurt W. Niederer, Edward L. Hand, Edwin R. Grose
  • Patent number: 5131218
    Abstract: A unique fishing rope comprising floating and sinking portions. The sinking portion blended yarns made up of a blend of first and second non-metallic synthetic filaments in proportions to yield a sinking rope portion having a specific gravity greater than one. The sinking rope portion comprises strands having yarns of substantially the same diameter. The floating portion of the rope is formed by replacing selected ones of the blended yarns in each strand with yarns formed of a material having a specific gravity of less than one. The replacement yarns and the blended yarns are of the same diameter to enhance the integrity and strength of the rope.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: July 21, 1992
    Assignee: American Manufacturing Company, Inc.
    Inventor: George A. Berger
  • Patent number: 4965919
    Abstract: Potential bulky polyester associated bundles or yarns for woven or knitted fabric include spontaneously heat extensible multi-filament A and heat shrinkable multi-filament B. The associated bundles are interlaced at 20-100 interlaces/m. For multi-filament A, the following physical properties apply: <3 denier as a single bundle; 20-80% denier ratio content in associated bundles, wet shrinkage at 100.degree. C. (SHW (A))=0-5%, dry shrinkage at 160.degree. C. (SHD (A))=-15-0%. The properties pertaining to multi-filament B include: fracture tenacity>4 g/denier, denier ratio of 80-29% content in associated bundles, SHW (B)>5-60%. Additionally, SHD (B)-SHD(A)>5%. The invention also relates to processes for forming the bundles and for weaving the bundles into fabric.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: October 30, 1990
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Takayoshi Fujita, Hisao Nishinaka, Michio Ohota, Yoshihisa Dammoto, Shigeo Nagira
  • Patent number: 4876818
    Abstract: A fishing net includes a cord having a multiplicity of strands including an identification strand marked at spaced intervals with sequential numerical codes. The preselected strand is substantially inextricably incorporated in the cord so that the preselected strand extends along the length thereof. The cord is in turn incorporated in the net so that the cord extends substantially from one end of the net to an opposite thereof. The cord has ends located at readily accessible preselected points relative to the net so that a smallest numerical code and a largest numerical code on the cord are easily determinable upon visual inspection of the net.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: October 31, 1989
    Assignee: Northwest Marine Technology, Inc.
    Inventors: Richard D. Fralick, Philip A. Ekstrom
  • Patent number: 4827708
    Abstract: A wire rope is constructed so that the twisting moment generated in the rope per unit load decreases from one end of the rope to the other . This is accomplished by varying the length of lay along the rope.
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: May 9, 1989
    Assignee: Drahtseilwerk Saar GmbH
    Inventor: Roland Verreet
  • Patent number: 4790136
    Abstract: A glass fiber bulk strand roving that is made up of a multiplicity of strands, each of which is made up of a plurality of individual fibers, for example, 200 of such fibers. Each strand of the roving has a multiplicity of rather long, axially extending loops, for example, axially extending loops with a calculated length of at least 6 inches, and a multiplicity of shorter, unbroken, cross-axially extending loops that are formed in the axially extending loops of such strands. The axially extending loops and the cross-axially extending loops interengage and intertwine with one another for form a composite entangled structure. The roving of the present invention is made by a process that uses a finger wheel to form axially extending loops in strands and a co-axial spinner with an inlet that is positioned above or below the finger wheel.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: December 13, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Hellmut I. Glaser, William L. Streicher
  • Patent number: 4790129
    Abstract: A cable bolt for ground control which is made from individual twisted wires which may be obtained from destranding a wire strand, the cable bolt being made by twisting the wires in a direction opposite their normal twist, the cable bolt so formed having alternate areas of enlarged diameter where the wires are spaced from one and other and areas where the wires lie closely adjacent. A method of manufacturing such a cable bolt by twisting a number of wires into a strand having a twist, at least along part of its length, opposite to the original twist of the wires and which has alternate areas of enlarged diameter where the wires are spaced one from the other and areas where the wires lie closely adjacent. Also there is provided an apparatus to form such a cable bolt which includes a mechanism to receive individual ones of the wires and whereby these can be twisted to form the cable bolt.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: December 13, 1988
    Assignee: Rock Engineering Pty. Limited
    Inventor: Warwick Hutchins
  • Patent number: 4776162
    Abstract: A method and apparatus for the manufacture of a glass fiber bulk strand roving which is made up of a multiplicity of strands, each of which is made up of a plurality of individual fibers, for example, 200 of such fibers. Each strand of the roving has a multiplicity of rather long, axially extending loops, for example, axially extending loops with a calculated length of at least 6 inches, and a multiplicity of shorter, unbroken, cross-axially extending loops that are formed in the axially extending loops of such strands. The axially extending loops and the cross-axially extending loops interengage and intertwine with one another to form a composite entangled structure. The roving which is produced by the method and apparatus of the present invention is made by a process that uses an array of inwardly projecting fingers to form axially extending loops in the strands and a spinner with an inlet that is positioned adjacent the fingers.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: October 11, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Hellmut I. Glaser, William L. Streicher
  • Patent number: 4741151
    Abstract: A glass fiber bulk strand roving that is made up of a multiplicity of strands, each of which is made up of a plurality of individual fibers, for example, 200 of such fibers. Each strand of the roving has a multiplicity of rather long, axially extending loops, for example, axially extending loops with a calculated length of at least 6 inches, and a multiplicity of shorter, unbroken, cross-axially extending loops that are formed in the axially extending loops of such strands. The axially extending loops and the cross-axially extending loops interengage and intertwine with one another to form a composite entangled structure. The roving of the present invention is made by a process that uses a finger wheel to form axially extending loops in strands and a spinner downstream of the finger wheel.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: May 3, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Jerome P. Klink, Hellmut I. Glaser
  • Patent number: 4738096
    Abstract: An open type metal cord has a plurality of cord units each constituted by at least one preformed metal wire member. The wire members within a given cord unit have the same preforming ratio but have a different ratio from that of the wire members within another cord unit. A difference between the largest preforming ratio and the smallest preforming ratio in cord units falls within the range of 0.20 to 0.40. In this case, the maximum preforming ratio possible for the wire members is 1.65 and the minimum preforming ratio possible for the wire members is 1.05. A total number of wire members constituting a metal cord according to the present invention is 3 to 5.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: April 19, 1988
    Assignee: Tokyo Rope Mfg. Co., Ltd.
    Inventors: Koji Hatakeyama, Masahiro Kusuda
  • Patent number: 4724664
    Abstract: A method and apparatus for producing thread or yarn-like material by electrostatically flocking it or covering it with fibers. Grounded base or carrier threads that are provided with adhesive are moved through an electrostatic field of high voltage, where the surfaces of the carrier threads are flocked all the way around with pretreated short fibers (flock material). During the course of producing the flocked thread or yarn, selective lengths of the carrier threads are nonuniformly flocked in an irregular sequence, with the flock material, in different flock patterns.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: February 16, 1988
    Assignee: Uniroyal Englebert Textilcord S.A.
    Inventor: Robert L. Goerens