Including Plural Layers Of Different Elastomeric Materials Patents (Class 474/264)
  • Patent number: 10712234
    Abstract: A system and method capable of detecting damage in a belt before catastrophic failure of the belt occurs. The system includes a belt having at least a first conductive component and/or at least a first dielectric component, and one or more pulleys to which the belt is mounted. At least a first of the pulleys has at least one conductive component that, in combination with the first conductive component or the first dielectric component of the belt, defines an electrical element. At least a portion of the electrical element is located within the belt so as to be physically responsive to transitory and permanent distortions of the belt resulting from extrinsic and/or intrinsic sources. Electrical potential is applied through the electrical element so as to generate an electrical signal from the electrical element corresponding to a physical response of the belt to a transitory and/or permanent distortion.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: July 14, 2020
    Assignee: Purdue Research Foundation
    Inventors: Kyle James Mosier, Gary W. Krutz, Robert Stwalley, Grant Knies, Brittany Newell
  • Patent number: 10267380
    Abstract: A power transmission belt and a method for manufacturing said belt. The belt includes: a backing layer made of a material with elastomeric behavior; a ventral layer made of a material with elastomeric behavior; a mechanical reinforcement means inserted between the backing layer and the ventral layer comprising a film with thermoplastic transformation surrounding the mechanical reinforcement means, said film comprising at least: a first component physically and/or chemically bonded to at least one component of the backing layer; a second component physically and/or chemically bonded to at least one component of the mechanical reinforcement means; and a third component physically and/or chemically bonded to at least one component of the ventral layer. The method for manufacturing said belt may advantageously use an anti-sticking means.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: April 23, 2019
    Assignee: HUTCHINSON
    Inventors: Elsa Franchini, Julie Rognon
  • Patent number: 9534659
    Abstract: A v-ribbed belt manufactured in a molding or grinding process has in different areas of the structure thereof different elastomer materials. In upper rib segments oriented toward the belt pulley there is an elastomer material that is not electrically conductive. The lower rib segments are made of an electrically conductive elastomer material. The height ratio a/(a+b) of the height (a) of the lower rib segments to the overall height (a+b) of the rib, as measured at the material boundary located at the rib flank, is at least 6 percent, or the absolute height of the lower rib segments is at least 0.12 mm.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: January 3, 2017
    Assignee: ARNTZ BETEILIGUNGS GMBH & CO, KG
    Inventors: Florian Lotz, Dennis Kopmann
  • Publication number: 20150148165
    Abstract: At least part of a belt body of a transmission belt contacting a cord is made of a rubber composition containing ethylene-?-olefin elastomer as a rubber component and formed in such a manner that the rubber component is mixed with ?,?-unsaturated fatty acid metallic salt and then is crosslinked using sulfur.
    Type: Application
    Filed: January 6, 2015
    Publication date: May 28, 2015
    Inventor: Hisashi Matsuda
  • Publication number: 20150111677
    Abstract: The present invention relates to a transmission belt containing a core wire extending in a lengthwise direction of the belt, an adhesive rubber layer in contact with at least a part of the core wire, a back surface rubber layer formed on one surface of the adhesive rubber layer, and an inner surface rubber layer formed on the other surface of the adhesive rubber layer and engaging or in contact with a pulley, in which the adhesive rubber layer is formed by a vulcanized rubber composition containing a rubber component, a fatty acid amide and a silica.
    Type: Application
    Filed: April 22, 2013
    Publication date: April 23, 2015
    Inventors: Takeshi Nishiyama, Susumu Takaba, Hisato Ishiguro
  • Patent number: 8956723
    Abstract: A coating liquid for coating glass fiber cords, containing: a chlorophenol-formaldehyde condensate (A) obtained by condensing a chlorophenol (D) and formaldehyde (E) in water; an emulsion of a vinylpyridine-styrene-butadiene copolymer (B); and an emulsion of a chlorosulfonated polyethylene (C).
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: February 17, 2015
    Assignee: Central Glass Company, Limited
    Inventors: Katsuhiko Ogaki, Toshiya Monden, Takafumi Iwano
  • Publication number: 20140364261
    Abstract: The invention relates to a v-ribbed belt (10) manufactured in a molding or grinding process, comprising a plurality of ribs (1) for engaging a multi-groove belt pulley (4), which in different areas of the structure thereof can comprise different elastomer materials. In two rib segments 8, 9), v-ribbed belt has differing elastomer materials that are exposed toward the flank (6) of the rib (1), wherein the upper rib segments (8) oriented toward the belt pulley are made of an elastomer material that essentially is not electrically conductive. The lower rib segments (9) are made of an electrically conductive elastomer material. The height ratio a/(a+b) of the height (a) of the lower rib segments (9) to the overall height (a+b) of the rib (1), as measured at the material boundary (12) located at the rib flank (6), is at least 6 percent, or the absolute height (a) of the lower rib segments (9) is at least 0.12 mm. The invention further relates to a method for producing a v-ribbed belt according to the invention.
    Type: Application
    Filed: October 4, 2012
    Publication date: December 11, 2014
    Inventors: Florian Lotz, Dennis Kopmann
  • Publication number: 20140323256
    Abstract: A friction transmission belt has a belt body made of a rubber composition and wrapped around pulleys to transmit power. The belt includes a thermoplastic resin film provided to coat a pulley contact surface of the belt body, and a powder layer comprised of reduced friction coefficient powder particles provided on a surface side of the thermoplastic resin film. The powder layer includes powder particles buried in the thermoplastic resin film, powder particles carried and exposed on the surface of the thermoplastic resin film, and powder particles agglomerated and adhering to the powder particles carried and exposed on the surface of the thermoplastic resin film.
    Type: Application
    Filed: July 9, 2014
    Publication date: October 30, 2014
    Inventor: Keisuke Yoshida
  • Patent number: 8859081
    Abstract: There is described a toothed belt comprising an elastomeric material body, in which a plurality of longitudinal filiform resistant inserts is embedded, and a toothing coated by a coating fabric. A resistant layer that increases the resistance to abrasion and thus the resistance to wear of the toothed belt is adhered over the coating fabric. The resistant layer comprises a vulcanization agent and more than 75% of an elastomer formed by at least one copolymer modified with an unsaturated carboxylic acid salt and obtained from a dien monomer and a nitrile group-containing monomer. The resistant layer is advantageously separated from the fabric and is calendered on the fabric itself.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: October 14, 2014
    Assignee: Dayco Europe S.r.l.
    Inventors: Carlo Baldovino, Adriano Rolando
  • Publication number: 20140296011
    Abstract: A friction transmission belt includes a belt body made of a rubber composition and wrapped around pulleys to transmit power. A thermoplastic resin film(s) adheres to a pulley contact-side surface of the belt body, and friction coefficient reduction powder particles dispersively adhere to the pulley contact-side surface of the belt body.
    Type: Application
    Filed: June 13, 2014
    Publication date: October 2, 2014
    Inventors: Keisuke Yoshida, Sungjin Kim
  • Patent number: 8673433
    Abstract: A load-pulling system includes a least one belt to which a tensile load is applied. The belt is formed of a matrix and a load-bearing fiber structure embedded in the matrix and having a plurality of fibers. The belt is guided around a least one deflection device in such a way that it forms a curved section in the region of the deflection device. A dimensioning of the belt and the applied tensile load are matched to each other in such a way that, in the curved section of the belt, a zero stress line of the belt is displaced radially inward in the direction of curvature with respect to a center line of the load-bearing fiber structure by an amount of at least 25% of the thickness of the load-bearing fiber structure.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: March 18, 2014
    Assignee: SGL Carbon SE
    Inventors: Bernd Reif, Florian Gojny, Tobias Schmidt
  • Patent number: 8632432
    Abstract: A supporting and drive belt including a belt body or sheathing which encloses tensile carriers. The running surface of the belt can be flat and parallel to the belt back or have trapezium-shaped or semicircular ribs and grooves, wherein the profile of a drive pulley or of a deflecting pulley is approximately complementary to the running surface of the belt. One or more tensile carriers are provided for each rib, wherein the tensile carriers are laid or stranded alternately in the “Z” direction and the “S” direction.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: January 21, 2014
    Assignee: Inventio AG
    Inventors: Adolf Bissig, Alessandro D'Apice, Herbert Bachmann, Manfred Wirth, Roland Lorenz, Tobias Noseda, Florian Dold, Claudio De Angelis
  • Patent number: 8579747
    Abstract: A stacked ring 2 that forms a transmission belt is formed by stacking a plurality of elastically deformable ring materials 201 to 206 together. Shot peening is performed on surfaces of the ring materials 201 to 203 of the first layer as the innermost layer to the third layer so that a residual compressive stress in the ring materials 201 to 203 is higher than that in the ring materials 204 to 206 of the fourth to sixth layers. The outer circumferential length of the ring material 203 of the third layer is longer than the inner circumferential length of the ring material 204 of the fourth layer, and the ring material 203 of the third layer is press-fit into the ring material 204 of the fourth layer.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: November 12, 2013
    Assignee: Aisin AW Co., Ltd.
    Inventors: Akira Ochi, Youichi Murata, Katsumori Fujii, Masashi Hattori
  • Patent number: 8505714
    Abstract: A conveying system comprises a frame and an endless belt moveable relative to the frame. The belt comprises a first fabric layer having an inner surface and an outer surface that at least partially forms an upper surface of the belt. A composition comprising a flame retardant is adhered to the inner surface of the first fabric layer such that the composition at least partially forms the inner surface of the first fabric layer. A second fabric layer has an inner surface and an outer surface that at least partially forms a bottom surface of the belt. A composition comprising polyurethane is adhered to the inner surface of the second fabric layer such that the composition at least partially forms the inner surface of the second fabric layer. An at least substantially solid lubricant composition is impregnated in the second fabric layer and at least partially forms the bottom surface of the belt. The belt is supported on a slider bed for movement across the slider bed.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: August 13, 2013
    Assignee: Forbo Siegling, LLC
    Inventors: Jay Philip Leighton, Sandra Vause Canipe
  • Patent number: 8479888
    Abstract: The invention relates to a traction device (1), especially for an elevator system. The traction device (1) is driveable by a traction sheave. The task which is the basis of the invention is to provide a traction device which is simple to manipulate. High tension forces are transferable and the traction device makes possible a drive unit of lesser width compared to the known belt technology. For this purpose, the traction device is configured as a composite rope (1) wherein individual tension carriers (2, 3) are connected to each other via a one-sided elastomer connecting layer (4). The individual tension carriers (2, 3) lie in parallel and are jacketed with elastomeric material. The tension carriers (2, 3) engage in corresponding grooves (13) of the traction sheave (10). The tension carriers (2, 3) engage in the grooves (13) of the traction sheave (10) with at least 25% of their total diameter.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: July 9, 2013
    Assignee: ContiTech Antriebssysteme GmbH
    Inventor: Hubert Göser
  • Patent number: 8455097
    Abstract: There is disclosed a glass-fiber coating liquid for forming a coating layer on a glass fiber cord, prepared in the form of an emulsion by dispersing a phenol resin, a vinylpyridine-stylene-butadiene copolymer (B) and a chlorosulfonated polyethylene (C) into water to form a coating layer on a glass fiber cord, wherein the phenol resin is a monohydroxybenzene-formaldehyde resin (A) obtained by reaction of monohydroxybenzene (D) and formaldehyde (E).
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: June 4, 2013
    Assignee: Central Glass Company, Limited
    Inventors: Toshiya Monden, Hiroyuki Hyakutake, Katsuhiko Ogaki
  • Publication number: 20120329591
    Abstract: A belt for driving systems, including a belt body made of a polymeric material having elastic properties, which comprises a cover layer as a back of the belt and a foundation having a force-transmission zone, and, a tensile reinforcement embedded in the belt body. The belt body is made of at least two different materials A and B, namely: a first material A, which is provided with a fire-inhibiting additive and is used in the belt body everywhere the high mechanical properties are not required; and, a second material B, which contains little or none of a fire-inhibiting additive and is used in the area of the belt body that is subjected to great mechanical stress. The belt is used in particular as a tensile element for elevator systems.
    Type: Application
    Filed: September 6, 2012
    Publication date: December 27, 2012
    Inventors: Hubert Goeser, Thomas Winkler, Hugh J. O'Donnell, Stephan Brocke
  • Patent number: 8337349
    Abstract: The invention provides a power transmission belt which is superior in oil resistance so that it is swollen to only a reduced degree, reduced in hardness, and small in abrasion if the rubber layers are stained with oil while the belt is being used in an oil-present environment. Such a power transmission belt has rubber layers which comprise a compression rubber layer and an adhesion rubber layer both of which are vulcanized and bonded to each other and load carrying cords are embedded in the adhesion rubber layer, wherein at least the compression rubber layer between the two rubber layers is formed of vulcanizate obtained by vulcanizing ethylene-?-olefin-diene rubber with an organic peroxide and a trifunctional co-crosslinking agent.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: December 25, 2012
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Katsuyoshi Fujiwara, Yoshiyuki Kitano
  • Publication number: 20120295748
    Abstract: A vehicle periphery monitoring system is provided, in which by matching a behavior of a semitransparent tire image with an operation from a driver's viewpoint, a feeling of strangeness is reduced, an intuitive space perception is assisted and also a moving direction and a behavior of a vehicle can be easily perceived. In a side-view monitor system an image processing controller converts a real camera image including a blind spot into an image to be viewed from a driver's viewpoint to generate a blind spot image, and superimposes a semitransparent vehicle image which is obtained by making a vehicle viewed from the driver's viewpoint semitransparent and a semitransparent tire image which is obtained by making a tire semitransparent and displaying a behavior following a handle operation viewed from the driver's viewpoint on the blind spot image.
    Type: Application
    Filed: November 18, 2010
    Publication date: November 22, 2012
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventor: Hiroyuki Shiriike
  • Patent number: 8308592
    Abstract: The present invention is directed to a treadmill belt with foamed cushion layer and method of making same. In one embodiment, the treadmill belt includes a fabric base layer and a foamed cushion layer foamed on and integral with the fabric base layer. The foamed cushion layer includes a thermoplastic composition and has a Shore A hardness of about 20 to about 80. In one example, the first foamed cushion layer is from about 0.05 inches to about 0.35 inches thick. The thermoplastic composition, prior to being foamed, includes about 1 part to about 5 parts of a foaming agent, e.g., a chemical foaming agent, based on 100 parts thermoplastic material, e.g., polyvinyl chloride. An outer wear layer is securely adhered on the foamed cushion layer to sandwich the foamed cushion layer between the fabric base layer and outer wear layer thereby defining the treadmill belt.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: November 13, 2012
    Assignee: Veyance Technologies, Inc
    Inventors: Peter E. Radding, Steven Wayne Mutch
  • Patent number: 8293357
    Abstract: The invention relates to a power transmission belt presenting elastomer teeth based on ethylene alpha olefin elastomer provided with an outer woven or non-woven covering. According to the invention the teeth are covered in a barrier layer, in particular of a thermoplastic material, and said outer covering, at least on the flanks of the teeth, is partially included in a portion of the thickness of the barrier layer.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: October 23, 2012
    Assignee: Hutchinson
    Inventors: Jean-Loup Cretin, Julie Rognon, Denis Tricoche, Hervé Varin
  • Patent number: 8262522
    Abstract: The invention relates to a ribbed power transmission belt exhibiting a toothing made of elastomer based on ethylene/?-olefin elastomer, characterized in that at least the sides of the toothing are coated with a film made of at least partially crosslinked thermoplastic comprising at least 30% of at least one low-density polyethylene having a molecular weight of between 50 000 and 200 000 g/mol. The invention also relates to a manufacturing process which makes use of the application of a said thermoplastic film in the noncrosslinked or at least partially crosslinked state.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: September 11, 2012
    Assignee: Hutchinson
    Inventors: Marie Dieudonne, Philippe Sonntag, Hervé Varin
  • Publication number: 20120165145
    Abstract: A flat belt includes an adhesive rubber layer formed in an endless ring shape and having a tensile member embedded therein, a first rubber layer provided on a surface of the adhesive rubber layer, and a second rubber layer provided on the other surface of the adhesive rubber layer, in which an elastic modulus in a belt width direction of the adhesive rubber layer is higher than the elastic modulus in the belt width direction of each of the first rubber layer and the second rubber layer.
    Type: Application
    Filed: September 1, 2009
    Publication date: June 28, 2012
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Yoshiyuki Kitano, Masahiro Inukai, Mitsuhiko Takahashi
  • Patent number: 8157058
    Abstract: A transmission belt for driving and/or supporting an elevator car has a longitudinally extending body including an area tensile layer reinforced by chemical fibers. The belt can have a flat friction layer or a friction layer including alternating longitudinally extending wedge-shaped ribs and grooves. Transverse grooves can be formed across the width of the longitudinally grooved friction layer.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: April 17, 2012
    Assignee: Inventio AG
    Inventor: Ernst Friedrich Ach
  • Patent number: 8096925
    Abstract: The present invention is directed to a treadmill belt with foamed cushion layer and method of making same. In one embodiment, the treadmill belt includes a fabric base layer and a foamed cushion layer foamed on and integral with the fabric base layer. The foamed cushion layer includes a thermoplastic composition and has a Shore A hardness of about 20 to about 80. In one example, the first foamed cushion layer is from about 0.05 inches to about 0.35 inches thick. The thermoplastic composition, prior to being foamed, includes about 1 part to about 5 parts of a foaming agent, e.g., a chemical foaming agent, based on 100 parts thermoplastic material, e.g., polyvinyl chloride. An outer wear layer is securely adhered on the foamed cushion layer to sandwich the foamed cushion layer between the fabric base layer and outer wear layer thereby defining the treadmill belt.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: January 17, 2012
    Assignee: Veyance Technologies, Inc.
    Inventors: Peter E. Radding, Steven Wayne Mutch
  • Publication number: 20110300981
    Abstract: A friction drive belt (B) includes a belt body (10) that is wrapped around pulleys in contact therewith to transmit power. At least a pulley contact portion (15) of the belt main body (10) is made of a rubber composition containing 30-80 parts by mass of at least one layered silicate selected from a smectite group and a vermiculite group, per 100 parts by mass of raw rubber containing an ethylene-?-olefin elastomer.
    Type: Application
    Filed: February 24, 2010
    Publication date: December 8, 2011
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD
    Inventors: Shinji Takahashi, Kenichiro Furuta, Hiroyuki Shiriike, Tomoyuki Yamada, Hiroyuki Tachibana
  • Patent number: 8047940
    Abstract: A heat-resistant endless resin belt including a heat-resistant resin sheet, which can be employed in a thermal fixing apparatus, wherein the sheet includes two cutting work parts in an inclined shape. The two parts are overlapped with each other and bonded with an adhesive to form a bonding part. An external shape displacement f(x), measured via a flatness measuring apparatus, which scans the belt in a width direction thereof, satisfies a following formula ? 0 x ? ? f ? ( x ) - g ? ( x ) ? ? ? ? x ? XL 6800 , wherein “X” (mm) is a length of the belt in a width direction thereof; “L” (mm) is a perimeter of the belt and “g(x)” represents a displacement of an ideal shape of the heat-resistant resin belt, when g(x)=C (a constant), a left side of the formula is set to be a minimum; whilst when g(x) is a variable, the displacement of the ideal shape of the belt is set.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: November 1, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Atsushi Takai, Sumio Kamoi, Kazuo Ishida, Toshikazu Hirakawa, Atsushi Ishibe, Hiroshi Katabami
  • Publication number: 20110251006
    Abstract: A stacked ring 2 that forms a transmission belt is formed by stacking a plurality of elastically deformable ring materials 201 to 206 together. Shot peening is performed on surfaces of the ring materials 201 to 203 of the first layer as the innermost layer to the third layer so that a residual compressive stress in the ring materials 201 to 203 is higher than that in the ring materials 204 to 206 of the fourth to sixth layers. The outer circumferential length of the ring material 203 of the third layer is longer than the inner circumferential length of the ring material 204 of the fourth layer, and the ring material 203 of the third layer is press-fit into the ring material 204 of the fourth layer.
    Type: Application
    Filed: January 19, 2011
    Publication date: October 13, 2011
    Applicant: AISIN AW CO., LTD.
    Inventors: Akira Ochi, Youichi Murata, Katsumori Fujii, Masashi Hattori
  • Patent number: 8030404
    Abstract: The present invention is directed to the incorporation of functionalized polyethylenes, in amount of about 1% to 95% by weight based upon the weight of the total crosslinkable material, into ethylene alpha olefin elastomers, such as EPDM elastomer compositions, which are crosslinked by peroxides, which results in improved properties, such as hardness and modulus of elongation, and can result in improved higher abrasion resistance, wear resistance, coefficient of friction, tensile strength, and other properties through a broad temperature range, which are beneficial to power transmission products, such as power transmission belts.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: October 4, 2011
    Assignee: Veyance Technologies, Inc.
    Inventors: Thomas George Burrowes, Michael John William Gregg
  • Patent number: 7971687
    Abstract: An elevator load bearing assembly (20) includes a plurality of cords (22) within a jacket (24). The jacket has a plurality of grooves (32, 34, 36, 38 40) spaced along the length of the belt assembly. Each groove has a plurality of portions (50, 52, 54, 56) aligned at an oblique angle (A, B) relative to a longitudinal axis (48) of the belt (20). In one example, the grooves are separated such that there is no longitudinal overlap between adjacent grooves. In another example, transitions (60, 64) between the obliquely aligned portions are at different longitudinal positions on the belt. Another example includes a combination of the different longitudinal positions and the non-overlapping groove placement.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: July 5, 2011
    Assignees: Otis Elevator Company, ContiTech Antriebssysteme GmbH
    Inventors: Goldino Alves, Ary Mello, Xiaodong Luo, Bill Perron, Hugh O'Donnell, Paul von Hardenberg, Mark Marler, John Pitts, Randy Roberts, Hubert E. Goeser, Christoph Bederna
  • Patent number: 7909719
    Abstract: A belt assembly is provided for use as an endless belt traveling relative to a frame structure. The belt assembly comprises a first fabric layer and a second fabric layer having an outer surface that at least partially forms a bottom surface of the belt. A composition comprising polyvinyl chloride is adhered to the inner surface of the first fabric layer. A composition comprising polyurethane is adhered to the inner surface of the second fabric layer. A coating composition comprising polyvinyl chloride is disposed between the inner surfaces of the first fabric layer and the second fabric layer for joining the first fabric layer and the second fabric layer. An at least substantially solid lubricant composition is impregnated in the second fabric layer and at least partially forms the bottom surface of the belt.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: March 22, 2011
    Assignee: Forbo Siegling, LLC
    Inventors: Jay Philip Leighton, Sandra Vause Canipe
  • Patent number: 7863364
    Abstract: The invention relates to a process for making an article subject to dynamic loading, the process comprises: (i) shaping a polymer-containing composition in the green state, the composition comprising (a) a continuous phase of a polymeric component of at least 15 wt %, based on the total weight of the polymer component of a propylene elastomer having a heat of fusion of less than 70 J/g and an isotactic triad tacticity of 50 to 99% and optionally containing units derived from a diene, the polymeric component having a density of less than 0.9 g/cm3 and (b) from 20 to 120 phr, preferably 30 to 100 phr, most preferably 40 to 90 phr based on the total weight of the polymer component of a reinforcing filler component; and (c) a peroxide curative. The composition is combined with a fibrous reinforcement which is then cured to a cure state as determined by ODR @ 170° C., 30 min MH-ML of from 5 to 80 dNm.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: January 4, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Alistair Duncan Westwood, Abdelhadi Sahnoune
  • Patent number: 7824284
    Abstract: A power transmission belt incorporating an adhesive treatment system and method for bonding fiber to rubber which includes an optional primer coat based on a low-molecular-weight isocyanate, followed by an overcoat including: (a) a prepolymer based on an isocyanate-terminated diene oligomer, and optionally (b) a low-molecular-weight isocyanate, and/or (c) a thermoplastic urethane comprising the reaction product of the same prepolymer with MDI and EHD. A polyester, aramid, or carbon fiber tensile cord for rubber reinforcement may be treated with the primer coat and the overcoat. A power transmission belt or other dynamic rubber product having ethylene-alpha-olefin elastomer as the primary rubber constituent may be reinforced by the tensile cord.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: November 2, 2010
    Assignee: The Gates Corporation
    Inventor: Donald J. Burlett
  • Patent number: 7780561
    Abstract: A method of providing a mark on a power transmission belt having a body with a length and laterally spaced side surface. The method includes the step of providing a mark on at least one of the laterally spaced side surfaces. The invention is also directed to a power transmission belt having a length and laterally spaced side surfaces, with a mark on at least one of the laterally spaced side surfaces.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: August 24, 2010
    Assignee: Mitsuboshi Belting, Ltd.
    Inventors: Sokichi Nosaka, Takashi Hamada
  • Publication number: 20100144475
    Abstract: A drive belt (20) flexible in the circumferential direction for the transmission of mechanical power between two rotating pulleys (1, 2), is provided with a tension element (31) and with a number of transverse elements (40) which are provided on the tension element and have two largely axially directed, mutually radially outwardly diverging side faces (23) intended for frictional contact with the pulleys (1, 2). The tension element (31) here includes a flat, thin ring which is self-contained in the circumferential direction of the drive belt (20).
    Type: Application
    Filed: January 28, 2008
    Publication date: June 10, 2010
    Applicant: ROBERT BOSCH GMBH
    Inventors: Arjen Brandsma, Cornelia Adriana Elizabeth Crebolder, Bas Adrianus Maria Mutsaers, Bert Pennings, Pieter Gerard Van Tilborg, Peter Verhoeven, Denis Damkot
  • Patent number: 7682274
    Abstract: A reinforcing cord of the present invention is a reinforcing cord for rubber reinforcement. The reinforcing cord includes a carbon fiber strand (11) and a plurality of glass fiber strands (12) arranged around the carbon fiber strand (11). The present invention makes it possible to obtain a reinforcing cord having sufficient tensile strength for reinforcing rubber products as well as high dimensional stability and bending fatigue resistance.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: March 23, 2010
    Assignee: Nippon Sheet Glass Company, Limited
    Inventors: Mitsuharu Akiyama, Keisuke Kajihara
  • Patent number: 7661514
    Abstract: An elevator belt for an elevator installation includes a belt body in which a tensile carrier arrangement with several tensile carriers for transmission of a tension force in a longitudinal direction of the elevator belt is arranged. A profile body which spaces these tensile carriers from one another is arranged between adjacent tensile carriers of the tensile carrier arrangement.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: February 16, 2010
    Assignee: Inventio AG
    Inventor: Ernst Ach
  • Patent number: 7655729
    Abstract: The present invention is directed to the incorporation of functionalized polyethylenes, in amount of about 1% to 95% by weight based upon the weight of the total crosslinkable material, into ethylene alpha olefin elastomers, such as EPDM elastomer compositions, which are crosslinked by peroxides, which results in improved properties, such as hardness and modulus of elongation, and can result in improved higher abrasion resistance, wear resistance, coefficient of friction, tensile strength, and other properties through a broad temperature range, which are beneficial to power transmission products, such as power transmission belts.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: February 2, 2010
    Assignee: Veyance Technologies, Inc.
    Inventors: George Burrowes, Mike Gregg
  • Publication number: 20090186733
    Abstract: The invention provides a power transmission belt which is superior in oil resistance so that it is swollen to only a reduced degree, reduced in hardness, and small in abrasion if the rubber layers are stained with oil while the belt is being used in an oil-present environment. Such a power transmission belt has rubber layers which comprise a compression rubber layer and an adhesion rubber layer both of which are vulcanized and bonded to each other and load carrying cords are embedded in the adhesion rubber layer, wherein at least the compression rubber layer between the two rubber layers is formed of vulcanizate obtained by vulcanizing ethylene-?-olefin-diene rubber with an organic peroxide and a trifunctional co-crosslinking agent.
    Type: Application
    Filed: June 21, 2005
    Publication date: July 23, 2009
    Applicant: Bando Chemical Industries, Ltd.
    Inventors: Katsuyoshi Fujiwara, Yoshiyuki Kitano
  • Publication number: 20090048049
    Abstract: It is an object of the present invention to provide a power transmission belt which is superior in dynamic adhesion and heat-resistant adhesion against repeated flexing of a power transmission belt or running under heating conditions around an engine, and is also superior in heat resistance, abrasion resistance and an abnormal noise-preventing property.
    Type: Application
    Filed: September 26, 2005
    Publication date: February 19, 2009
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Yasuhiko Yoshida, Hiroyuki Tachibana, Hiroyuki Shiriike
  • Patent number: 7235028
    Abstract: A belt having a body, a tensile member and an outer surface. The body comprises an elastomer. An outer surface of the belt having a profile, foe example teeth. A layer of Ultra high molecular weight polyethylene thermoplastic (UHMWPE) is bonded to the profile surface. The layer bonded to the profile surface having a low softening point allowing it to conform to a mold shape prior to cure of the rubber body material. The layer having a molecular weight in the range of 3-7 million grams per mole. The layer causes the belt to exhibit superior abrasion resistance and flexibility while reducing the cost per belt as compared to fabric jacket belts. The UHMWPE jacket belt has significantly reduced dust and debris production during operation.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: June 26, 2007
    Assignee: The Gates Corporation
    Inventors: Dieter Martin, Harry D. Visser, Paul N. Dunlap
  • Patent number: 7128674
    Abstract: The invention relates to a frictionally engaged driving belt having a base body (2) and a cover layer (1) that consists of rubber or a rubber-like synthetic material which is provided with a tractive support layer (3) that is embedded into the rubber or the rubber-like synthetic material. The aim of the invention is to prevent or reduce the generation of noise in drives of the belts. Only the surface or a portion of the surface, preferably the motion-transferring part of the surface, pertaining to the driving belt is provided with a flocking material consisting of short aramide fibers (5). A portion of said aramide fibers (5) is integrated into the surface only with a partial length of each individual fiber.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: October 31, 2006
    Assignee: Contitech Antriebssysteme GmbH
    Inventors: Reinhard Teves, Jörg Wolters, Klaus-Lüder Mahnken, Joachim Nau, Reinhold Moses, Tobias Nonnast, Ymte Greydanus
  • Patent number: 7025699
    Abstract: An endless positive drive power transmission belt is described for use with a cooperating pulley member, wherein the endless positive drive transmission belt comprises an elastomeric body portion, a plurality of longitudinally extending spaced apart tensile members, and a layer of wear-resistant fabric material positioned on the cooperating pulley member engaging surface of said belt, wherein a layer of a high ethylene-containing elastomer composition is bonded to a surface of the layer of wear-resistant fabric material in such a manner that the surface layer of the high ethylene-containing elastomer is disposed between the layer of wear-resistant fabric material and the cooperating pulley member. A method for coating a wear-resistant fabric material with a high ethylene-containing elastomer is also described.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: April 11, 2006
    Assignee: Dayco Products, LLC
    Inventor: Harold D. Beck
  • Patent number: 7011880
    Abstract: A belt and method of marking a belt. A layer of polyethylene material is joined or cured to a belt. The layer is optically distinguishable from a belt body. The layer is etched to expose a portion of the belt body in order to contrast the layer with the belt body. A second layer of polyethylene material may be applied adjacent to the first layer. The second layer is optically distinguishable from the first layer. The first or second layer is etched using cutting, grinding or laser light in order to expose portions of the adjacent layer, or of the belt body, thus providing a method of permanently marking the belt.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: March 14, 2006
    Assignee: The Gates Corporation
    Inventor: Douglas R. Sedlacek
  • Patent number: 6964626
    Abstract: The present invention relates to molded polyurethane/urea elastomers, and specifically to improved polyurethane/urea elastomers having high temperature stability to about 140–150° C. and low temperature flexibility at about ?35–(?40)° C., for use in dynamic applications. These elastomers are particularly useful for application in belts, specifically in automotive timing or synchronous belts, V-belts, multi V-ribbed or micro-ribbed belts, flat belting and the like. The polyurethane/urea elastomers of the present invention are prepared by reacting polyisocyanate prepolymers with symmetric primary diamine chain extenders, mixtures of symmetric primary diamine chain extenders and secondary diamine chain extenders, or mixtures of symmetric primary diamine chain extenders and non-oxidative polyols, which are all chosen to eliminate the need for catalysts via standard molding processes, and to improve phase separation.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: November 15, 2005
    Assignee: The Gates Corporation
    Inventors: William W. L. Wu, James R. Stamp, W. Joe Brothers
  • Patent number: 6770004
    Abstract: An electrically conductive article (1) which maintains the conductive property over an extended use life is comprised of an electrically conductive thermoplastic layer (8) on the surface which is in contact with another article. When forming belts for synchronous drive systems, in addition to maintaining the electrical properties, the conductive layer exhibits high abrasion resistance and good tooth formation. A bonding layer (9) may be provided between the article body and the conductive layer (8).
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: August 3, 2004
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jeffery Dwight Lofgren, Frank Joseph Feuerborn
  • Patent number: 6737461
    Abstract: A vulcanizate derived from a polymer composition comprising three components exhibits improved hot air aging properties and is useful, for example, for the manufacture of articles subject to dynamic loading, such as belting applications. The first component is a polymer having a main polymer chain derived from: (i) at least about 30% by weight of a first monomer which introduces at least one of a secondary carbon and a tertiary carbon to the backbone, and (ii) from 0 to about 70% by weight of at least one other monomer. Preferred are ethylene-alpha-olefin copolymers. The second component is a salt of a strong base and a weak acid, the salt comprising a metal selected from Group I of the Periodic Table of Elements. The third component is an antioxidant.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: May 18, 2004
    Assignee: Bayer Inc.
    Inventors: Judy Hannay, Harald Bender
  • Patent number: 6669591
    Abstract: This invention relates to power transmission belts and to a rubber composition for use therein. The composition contains from 90 to 10 phr alkylated chlorosulfonated polyethylene and 10 to 90 phr ethylene vinyl acetate.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: December 30, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul Norman Brinkman, Thomas George Burrowes
  • Patent number: 6659898
    Abstract: An endless belt, comprising a molding in the shape of an endless belt obtained by mixing a crystalline resin having at least one hydroxyl group, carboxyl group or an ester linkage, an amorphous resin having at least one hydroxyl group, carboxyl group or an ester linkage, and a polymerization catalyst while heating, thereby preparing a resin composition; and molding said resin composition.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: December 9, 2003
    Assignees: Yukadenshi Co., Ltd., Mitsubishi Chemical Corporation
    Inventors: Makoto Morikoshi, Kouichi Sakogawa, Toshihiro Otsu
  • Patent number: 6609990
    Abstract: The invention comprises a belt having a plied construction overlying tensile cords. An elastomeric layer overlies an overcord which overlies yet another elastomeric layer which in turn overlies a tensile cord. The overcord layer supports the tensile cords during molding thereby stabilizing a cordline centerline position with respect to a rib apex. This construction significantly reduces a distance from a tensile cord centerline to a rib apex and rib/pulley interface in a multi-ribbed belt, thereby significantly increasing belt life.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: August 26, 2003
    Assignee: The Gates Corporation
    Inventor: Craig Kopang