US3073004A - High strength banding tape - Google Patents

High strength banding tape Download PDF

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Publication number
US3073004A
US3073004A US83696359A US3073004A US 3073004 A US3073004 A US 3073004A US 83696359 A US83696359 A US 83696359A US 3073004 A US3073004 A US 3073004A
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United States
Prior art keywords
tape
fabric
acid
per inch
yarns
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Expired - Lifetime
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English (en)
Inventor
Jr Clarence L Zeise
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Westinghouse Electric Corp
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Westinghouse Electric Corp
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Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to US83696359 priority Critical patent/US3073004A/en
Priority to CH773560A priority patent/CH404193A/de
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • H02K3/51—Fastening of winding heads, equalising connectors, or connections thereto applicable to rotors only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two-dimensional [2D] structure
    • B29C70/226—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two-dimensional [2D] structure the structure comprising mainly parallel filaments interconnected by a small number of cross threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • H01B3/50—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2227/00—Use of polyvinylhalogenides or derivatives thereof as reinforcement
    • B29K2227/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2233/00—Use of polymers of unsaturated acids or derivatives thereof, as reinforcement
    • B29K2233/18—Polymers of nitriles
    • B29K2233/20—PAN, i.e. polyacrylonitrile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2267/00—Use of polyesters or derivatives thereof as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2277/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3179—Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
    • Y10T442/322—Warp differs from weft
    • Y10T442/3228—Materials differ
    • Y10T442/3236—Including inorganic strand material
    • Y10T442/3252—Including synthetic polymeric strand material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3179—Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
    • Y10T442/3301—Coated, impregnated, or autogenous bonded
    • Y10T442/3309—Woven fabric contains inorganic strand material

Definitions

  • This invention is directed to banding tapes of high tensile strength, which tapes comprise a fabric composed of a plurality of glass warp yarns which extend longitudinally of the tape and soft, non-abrasive fill yarns and a potentially thermosettable resinous composition impregnating and coating the fabric.
  • the banding tapes of this invention have particular application for the banding of armatures and like members. The tapes can also be ernployed for other applications requiring high strength band members.
  • FIG. 1 is a lfragmentary perspective view of fabric suitable for use in this invention
  • FIG. 2 is a cross-sectional view showing the fabric of FIG. 1 having applied thereto a potentially thermosettable resinous composition
  • FIG. 3 is a fragmentary longitudinal sectional view of a portion of a direct current dynamo-electric machine showing a band member applied on one end of the armature.
  • a high strength tape having a tensile strength within the range of at least 800 to 1500 pounds per inch, which tape is highly suitable for the banding of armatures and like members.
  • the tape of this invention comprises a fabric composed of a plurality of closely packed continuous filament glass warp yarns which extend longitudinally of the tape and spaced fill yarns of a relatively soft, nonabrasive yarn disposed at angles substantially perpendicular with respect to the glass warp yarns, and a potentially thermosettable resinous composition impregnating and/or coating the fabric to provide a resin ratio of from about 1.10 to 1.50.
  • the preferred resin ratio being within the relatively narrow range of from 1.15 to 1.30.
  • Resin ratio is defined as the ratio of the weight of the untreated sheet of fabric plus the weight of the resin that is applied to the sheet to the weight of the untreated sheet.
  • the glass warp yarns that extend longitudinally of the .tape are prepared from continuous filament glass yarns for ultimate tensile strength properties.
  • the glass yarns are' closely packed and the number of warp yarns per inch is preferably with the range of from about 60 to
  • the lill yarns are preferably widely spaced and can be employed in the amount of from about 1 to 20 yarns from polymers of acrylonitrile, such ⁇ as those available commercially under the proprietary names Orlon and Acrilan; copolymers of vinyl chloride and acrylonitrile, available commercially under the proprietary name Dynel; polyethylene terephthalate, available commercialF ly under the proprietary name Daeron; high molecular weight linear polyamides, available commercially underv the name nylon; copolymers of vinyl chloride and vinylidene chloride available commercially under the proprietary name Saran; and copolymers of vinyl chloride and vinyl acetate, available commercially under the proprietary name Vinyon.
  • Fill yarns comprising various combinations of the above
  • the tapes of this invention may be prepared from sheet material of a substantial width, for example, from about 36 inches to 40 inches or they may be prepared from fabric already cut into the desired tape width, for example 5% inch to 2 inches. If sheet material of substantial width is employed, it is, after resin treatment, slit into tapes of desired width.
  • 1 150-2/2 means that two ends of 150 untwisted yarns are brought together, and then two of these -2 end yarns are piled together; the expression 150 means 15,000 yarns to the pound.
  • fabric 10 which is a unidirectional weave made by interleaving yarns 12 of continuous glass lament fibers with ll yarns 14 of smaller diameter.
  • the yarns 14 are more widely spaced than the Warp yarns 12, which are closely packed.
  • a single continuous filament of about 70 denier and prepared from one of the synthetic organic materials hereinbefore described has proved highly satisfactory in preparing the unidirectional fabric for use in this invention.
  • the fill yarns are of substantially smaller diameter, usually of the order of from about 60 to 120 denier, than the warp yarns and are spaced apart relatively widely.
  • a fabric constructed in this manner and as shown in FIG. 1 has little tensile strength in a ldirection generally transverse to the direction of the warp yarns 12, and extremely high tensile strength in the direction of the glass warp yarns 12.
  • the relatively small diameter of the till yarns 14 and the relatively wide spacing thereof prevents sharp bends in the glass liber yarns 12 so that the glass fiber yarns 12 are arranged in a relatively straight line. In this relation the warp yarns are in the best position to bear high tensile stresses.
  • the unidirectional fabric is impregnated and/ or coated with the desired resinous composition, preferably by dipping a sheet or tape of the fabric in a bath containing the resinous composition dissolved in a suitable solvent. After this impregnation and/or coating of the fabric, the treated fabric is dried to remove the solvents therefrom and to provide a treated sheet material that is flexible and tack-free. It may be then stored for future use or used immediately. Sheets of fabric are subsequently slit into tapes of desired width.
  • the resin or resin composition employed in treating the fabric of this invention be such that a tack-free resin coating is provided on the surface of the treated fabric. t is apparent that a tack-free treated tape is highly desirable for ease of application and furthermore, a tack-free condition prevents dirt and other deleterious material from adhering to the tape during application thereof.
  • FIG. 2 of the drawing is a cross section of the glass fabric 10 impregnated and coated with a potentially thermosettable resinous composition 16.
  • thermosettable resinous compositions there are many heat-hardenable resins and resin compositions that may be employed in treating the fabric to produce the bandin. tape of this invention.
  • Thermoplastic resinous compositions are not desirable because they will soften at relatively low temperatures.
  • the banding tapes of this invention will ordinarily be employed in apparatus that Will be subjected to high ternperatures in service. Thus it is preferred to employ thermosettable resinous compositions.
  • thermosettable resinous compositions are available. Phenolic resins, polyepoxides, melamine-aldehydc resins, and silicone resins, for example, may be employed.
  • thermoset completely reactive polyester-type resinous compositions that thermoset.
  • These completely reactive compositions may comprise one or more compounds containing two or more unsaturated aliphatic groups. Examples of such compounds are diallyl phthalate, diallyl sebacate, and divinyl benzene.
  • the unsaturated dicarboxylic acid or anhydride or mixtures thereof are reacted with a substantially molar equivalent of one or more polyhydric alcohols such as ethylene glycol, glycerol, propylene glycol, diethylene glycol, pentaerythritol or mixtures of two or more.
  • Castor oil has been employed successfully in an esteriiication reaction with maleic anhydride.
  • the resultant ester such as castor oil maleate ester, is admixed with a polymerizable unsaturated monomer, for example, monostyrene, in the proportions of from about l to 95 parts by Weight of the monostyrene and from 90 to 5 parts by weight of the ester.
  • an ethylenically unsaturated alpha-beta dicarboxylic acid or anhydride thereof may be replaced with up to 95% of the weight thereof by a saturated aliphatic dicarboxylic acid or aryl dicarboxylic acid or anhydride, such for example as succinic acid, adipic acid, sebacic acid, phthalic acid, phthalic anhydride or the like.
  • a saturated aliphatic dicarboxylic acid or aryl dicarboxylic acid or anhydride such for example as succinic acid, adipic acid, sebacic acid, phthalic acid, phthalic anhydride or the like.
  • epoxides have been employed in lieu of glycols, particularly in reaction with dicarboxylic acid instead of their anhydrides.
  • Suitable liquid Vunsaturf'ited polymerizable monomers are: monostyrene, alpha-methylstyrene, 2,4-dichlorostyrene, paramethyl styrene, vinyl acetate, methyl methacrylate, ethyl acrylate, diallyl phthalate, diallyl succinate, diallyl mal'eate, allyl alcohol, methallyl alcohol, acrylonitrile, methyl vinyl ketone, diallyl ether, vinylidene chloride, butyl methacrylate, allyl acrylate, allyl crotonate, 1,3- chloroprene, and divinyl benzene, as well as mixtures of two or more of any of these monomers.
  • An excellent completely reactive composition is one composed Vof a solution of from 90 to 50 parts of arylalkene polymerizable monomer of from 10 to 50 parts by weight of the alkyd reaction product of (A) an unsaturated acidic compound from the group consisting of maleic acid, maleic anhydride, fumarie acid, citraconc acid, and citraconic anhydride Vin admixture with one or more saturated straight chain dicarboxylic acids having the carboxyl groups disposed at the end of the straight chain, the chainy having from 2 to l0 non-carboxyl cari bon atoms and no other reactive groups, and (B) a molar equivalent within il0% of an aliphatic saturated glycol having no other reactive groups than the hydroxyl groups.
  • the proportion of the unsaturated acidic compound in the mixture ot acids should be between 5% and 50% ofv the weight of the mixture.
  • Suitable saturated dicarbox ylic acids are adipic acid, sebacic acid, azelaic acid, suberic acid, succinic acid, decamethylene dicarboxylic acid and diglycolic acid and mixtures thereof.
  • the proportion of maleic anhydride may be higher than if the saturated acid were all succinic acid, if cured products of similar degrees of hardness are desired.
  • Suitable glycols for reaction with the mixture of saturated and unsaturated acids are ethylene glycol, propylene glycol, diethylene glycol, 1,5- pentanediol and triethylene glycol. Mixtures of the glycols are suitable for producing the reaction product.
  • the reaction of the (A) acidic compounds and (B) the glycols can be carried out by heating in a reaction vessel at temperatures of from 100 C. to 250 C. for from 24 hours to 2 hours to a low acid number of below 60.
  • Example I A mixture ot 4,4 mole percent of adipic acid and 6 mole percent of fumaric acid are combined with '50 mole percent of propylene glycol and reacted with CO2 sparging for about 4 hours at 140 C. in a closed reaction vessel after which the temperature is raised to about 220 C. over a 4 hour period and the reaction is continued at 220 C. for 8 hours. A syrupy polyester resin is produced.
  • Example II Another composition comprises the reaction product of l0 mole percent of maleic anhydride, 40 mole percent of adipic acid, and 50 mole percent of diethylene glycol.
  • Example III A reaction product is prepared by reacting 30 mole percent of sebacc acid, 20 mole percent of maleic anhydride, and 50 mole percent of diethylene glycol under the same conditions as in Example I with a syrupy resin of low acid number resulting.
  • Particularly good results are obtained by dissolving the unsaturated esters in monostyrene to produce solutions containing from 20% to 85% by weight of monostyrene and the balance, 80% to 15% by weight, composed of the unsaturated esters.
  • the above solutions are solvent reactive compositions which will polymerize completely when admixed with one or more vinyl-type polymerization catalysts, such as benzoyl peroxide, lauroyl peroxide, methyl ethyl ketone peroxide, t-butyl hydroperoxide, ascaridole, t-butyl perbenzoate, di-t-butyl diperphthalate, ozonides, and similar catalysts, lin an amount of from 0.5% to 5% and more, by weight. A proportion of the catalyst obviously may be present in amounts differing from these percentages.
  • one or more vinyl-type polymerization catalysts such as benzoyl peroxide, lauroyl peroxide, methyl ethyl ketone peroxide, t-butyl hydroperoxide, ascaridole, t-butyl perbenzoate, di-t-butyl diperphthalate, ozonides, and similar catalysts, lin an amount of from 0.
  • Example IV The resin composition of Example III is dissolved in monostyrene to producel a solution composed of 35% by weight of monostyrene and 65% by weight of the polyo varnish impregnating composition composed of about 50% resin solids.
  • Suitable solvents that may be employed for dissolving the resin polyester compositions described above are benzene, xylene, ethanol, isopropanol, and methyl ethyl ketone.
  • the resinous varnish composition of Example IV is employed to impregnate and coat a sheet of fabric having the construction as set forth in Table I to a resin ratio of abolt 1.20.
  • the impregnated sheet is passed into an oven to remove the solvent, to advance the cure of the resin composition to the B-stage, and to provide a tack-free, exible sheet of fabric composed of the glass fabric of Table I and the polyester resin composition of Example III.
  • the treated sheet is slit to one inch widths to provide tack-free, liexible banding tapes.
  • One of the banding tapes is wrapped around a 6 inch diameter mandrel to provide thereon a convolutely wound band or hoop having a wall thickness of about 1 inch.
  • the wrapped mandrel is placed in an oven for 30 minutes at a temperature of about 160 C., removed from the oven and cooled to room temperature.
  • the band thus produced is removed from the mandrel and tested for tensile strength and the resulting test indicated that the hoops would withstand a load of 29,900 pounds and had an ultimate tensile strength of 96,800 pounds per square inch.
  • the tensile tests were performed on a Baldwin Southwark universal testing machine.
  • FIG. 3 of the drawing there is illustrated the application of the banding tape of this invention to an armature or rotor member 20 of a direct dynamo-electric machine which also has a field-member or stator member 22.
  • an armature band or band member 24 has been applied about the periphery of coil ends or end turns 26 of the armature winding to retain the winding against centrifugal force.
  • a desired number of layers of the flexible, tack-free tape of this invention is wound tightly around coil ends 26. Heat is applied to cure the resin composition comprising the tape to an infusible, insoluble state to produce ⁇ armature band 24.
  • the armature band 24 is used to hold end turns 26 against coil support Z8. It is intended that the above description and drawing are merely descriptive of the invention and not in limitation thereof.
  • a iiexible banding tape comprising a fabric coinprised of from to 100 closely packed continuous lilament glass warp yarns per inch which warp yarns extend longitudinally of the tape and from 1 to 20 spaced continuous organic filament till yarns per inch, and a potentially thermosettable resin composition selected from at least one of the group consisting of polyepoxide resins, polyester resins, phenolic resins and silicone resins impregnating and coating the fabric to provide a resin ratio of from about 1.10 to 1.50, said tape being tack-free and having a tensile strength within the range of from at least 800 to 1500 pounds per inch.
  • a exible banding tape comprising a fabric comprised of from 60 to 100 closely packed continuous tilament glass warp yarns per inch which warp yarns extend longitudinally of the tape and from 8 to 18 spaced continuous organic filament non-abrasive till yarns per inch, and a potentially thermosettable resin composition selected from at least one of the group consisting of polyepoxide resins, polyester resins, phenolic resins, and silicone resins irnpregnating and coating the fabric to provide a resin ratio of from about 1.15 to 1.30, said tape being tack-free and having a tensile strength within the range of from at least 800 to 1500 pounds per inch.
  • a flexible tack-free banding tape comprising a fabric comprised of from 60 to 100 closely packed continuous ilament glass warp yarns per inch which warp yarns extend longitudinally of the tape and from 8 to 18 spaced continuous organic filament non-abrasive iill yarns per inch, and a potentially thermosettable polyester resin composition impregnating and coating the fabric to provide a resin ratio of from about 1.15 to 1.30, said tape having a tensile strength within the range of from at least 800 to 1500 pounds per inch.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)
US83696359 1959-08-31 1959-08-31 High strength banding tape Expired - Lifetime US3073004A (en)

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US83696359 US3073004A (en) 1959-08-31 1959-08-31 High strength banding tape
CH773560A CH404193A (de) 1959-08-31 1960-07-07 Wickelband

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240283A (en) * 1962-01-26 1966-03-15 Westland Aircraft Ltd Flexible skirting components for ground effect machines
US3263613A (en) * 1964-05-28 1966-08-02 Atlantic Res Corp Elastic sheet
US3418197A (en) * 1965-03-17 1968-12-24 Goodyear Aerospace Corp Fiber reenforced bonding tape
US3506526A (en) * 1965-09-03 1970-04-14 Matsushita Electric Industrial Co Ltd Transparent panel structure having metal filaments embedded therein
US3669158A (en) * 1969-03-10 1972-06-13 Technology Uk Continuous carbon fiber tapes
DE1781347B1 (de) * 1968-09-30 1972-09-21 Gustav Wolf Seil Und Drahtwerk Gewebter hebegurt
FR2164809A1 (de) * 1971-12-22 1973-08-03 Westinghouse Electric Corp
US3818082A (en) * 1971-02-03 1974-06-18 Celanese Corp Process for the production of carbonaceous tapes
US3860046A (en) * 1973-01-02 1975-01-14 Johnson & Johnson Gossamer shoulder strap for brassieres
US3914494A (en) * 1973-04-03 1975-10-21 Celanese Corp Pervious low density carbon fiber reinforced composite articles
US3925587A (en) * 1973-04-03 1975-12-09 Celanese Corp Pervious low density carbon fiber reinforced composite articles
US3930915A (en) * 1973-04-17 1976-01-06 Westinghouse Electric Corporation Method of making an electrical article
US3949129A (en) * 1970-05-28 1976-04-06 Hubbard Albert L Elastomer coated fabric
FR2298217A1 (fr) * 1975-01-15 1976-08-13 Westinghouse Electric Corp Disposition de courroie flexible pour la fixation des conducteurs de bobinage
US4130686A (en) * 1976-06-17 1978-12-19 Ube-Nitto Kasei Co., Ltd. Strapping band having core formed from a thermosetting resin and a covering formed from a thermoplastic resin
US4282011A (en) * 1980-05-30 1981-08-04 Dan River Incorporated Woven fabrics containing glass fibers and abrasive belts made from same
US4513055A (en) * 1981-11-30 1985-04-23 Trw Inc. Controlled thermal expansion composite and printed circuit board embodying same
EP0545210A1 (de) * 1991-11-29 1993-06-09 ABBPATENT GmbH Maschinenteil aus Faserverbundwerkstoff
US5447594A (en) * 1989-07-07 1995-09-05 Rubore Materials Sweden Ab Rubberized cloth vibration and noise-damping spacer for vehicle brakes and method for making the same
US20090175135A1 (en) * 2007-10-31 2009-07-09 Movado Llc, A Limited Liability Company Integrated watch band and methods therefor
DE102011106481A1 (de) * 2011-06-14 2012-12-20 Voith Patent Gmbh Rotor für eine dynamoelektrische Maschine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999157A (en) * 1975-01-15 1976-12-21 Westinghouse Electric Corporation Electrical apparatus having conductors banded together with flexible belts
PL183037B1 (pl) * 1996-04-18 2002-05-31 Abb Research Ltd Bandaż dla czołowych części uzwojeń wirników maszyn elektrycznych i sposób wytwarzania bandaża dla czołowych części uzwojeń wirników maszyn elektrycznych
HUE025448T2 (en) 2007-01-29 2016-04-28 August Krempel Soehne Gmbh & Co Kg Use of bandage tape for banding electric coil units

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US2372983A (en) * 1944-03-29 1945-04-03 Gen Electric Spinning bucket
US2477407A (en) * 1943-04-22 1949-07-26 Owens Corning Fiberglass Corp Reinforced plastics of increased strength
US2562951A (en) * 1946-08-26 1951-08-07 Rose Arthur Armor
US2896100A (en) * 1957-12-09 1959-07-21 Gen Electric Electrodynamic machine

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Publication number Priority date Publication date Assignee Title
US2477407A (en) * 1943-04-22 1949-07-26 Owens Corning Fiberglass Corp Reinforced plastics of increased strength
US2372983A (en) * 1944-03-29 1945-04-03 Gen Electric Spinning bucket
US2562951A (en) * 1946-08-26 1951-08-07 Rose Arthur Armor
US2896100A (en) * 1957-12-09 1959-07-21 Gen Electric Electrodynamic machine

Cited By (21)

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US4282011A (en) * 1980-05-30 1981-08-04 Dan River Incorporated Woven fabrics containing glass fibers and abrasive belts made from same
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US5447594A (en) * 1989-07-07 1995-09-05 Rubore Materials Sweden Ab Rubberized cloth vibration and noise-damping spacer for vehicle brakes and method for making the same
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US20090175135A1 (en) * 2007-10-31 2009-07-09 Movado Llc, A Limited Liability Company Integrated watch band and methods therefor
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