EP0598542A2 - Aufblasbarer Sportball - Google Patents

Aufblasbarer Sportball Download PDF

Info

Publication number
EP0598542A2
EP0598542A2 EP93308944A EP93308944A EP0598542A2 EP 0598542 A2 EP0598542 A2 EP 0598542A2 EP 93308944 A EP93308944 A EP 93308944A EP 93308944 A EP93308944 A EP 93308944A EP 0598542 A2 EP0598542 A2 EP 0598542A2
Authority
EP
European Patent Office
Prior art keywords
sports ball
layer
outer case
high tensile
bladder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93308944A
Other languages
English (en)
French (fr)
Other versions
EP0598542A3 (de
EP0598542B1 (de
Inventor
Christopher Ian P.O. Box 33 Mills
Jean-Marie Sonntag
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nike Mercurial I Ltd
Original Assignee
Umbro International Ltd
Umbro Europe Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Umbro International Ltd, Umbro Europe Ltd filed Critical Umbro International Ltd
Publication of EP0598542A2 publication Critical patent/EP0598542A2/de
Publication of EP0598542A3 publication Critical patent/EP0598542A3/de
Application granted granted Critical
Publication of EP0598542B1 publication Critical patent/EP0598542B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B41/00—Hollow inflatable balls
    • A63B41/08—Ball covers; Closures therefor
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2243/00—Specific ball sports not provided for in A63B2102/00 - A63B2102/38
    • A63B2243/0025—Football

Definitions

  • This invention relates to an inflatable sports ball which comprises an outer case, and an inner bladder within the outer case and which can be inflated in order to form the outer case into the required overall shape of the sports ball.
  • the invention is primarily concerned with inflatable sports balls for use in playing football, hand ball or basketball, in which the outer case is substantially spherical, but the invention will also be applicable to other shapes of inflatable sports ball, such as rugby balls or American footballs, in which the outer case has a substantially oval shape.
  • the bladder of a sports ball is inflated so as to expand radially and circumferentially into engagement with the inner surface of the outer case, and further inflation then causes the outer case to adjust itself on the outer surface of the bladder until it forms a required rigid outer covering to the bladder, which will be substantially spherical in the case of e.g. a football.
  • the outer case of a sports ball is much less resilient than the material from which the bladder is made (usually rubber or rubber based), and therefore the outer case does not yield to any appreciable extent circumferentially as it is engaged by the outer surface of the inflating bladder. Therefore, the outer case exerts a substantial confining force to the expanding bladder, and once the bladder engages the inner wall surface of the outer case, further inflation of the bladder soon brings the ball to the required overall shape and to a required internal pressure.
  • the manufacture of the outer case of footballs, especially for organised and professional sports remains a craft industry in which the outer case is built-up from a number of panels which are hand-stitched together.
  • an outer case is built-up from pentagonal and hexagonal panels, with each pentagon being surrounded by five hexagons, whereby each side of each pentagon forms one of the six sides of an adjacent one of the five hexagons surrounding the pentagon.
  • the panels are stitched together by stitching along overlapping edges of the pentagonal and hexagonal panels, and evidently the quality of the final product is largely dependent upon the skill and attention give to the task by the operative concerned.
  • the outer case of a sports ball is of a much lower order than the resilient circumferential expansion of the unconfined bladder, the outer case largely determines the overall inflated shape of the sports ball, and even small variations in expansion from one ball to another can result in markedly different flight profiles of the balls. Also, local surface imperfections i.e. departure from a truly spherical shape, can result in unpredictable movement of the ball through the air, and non-uniform production of sports balls.
  • the requirement for sports balls of accurate external profile is particularly importantfor professional sports, but is also important for serious sportsmen who regard their particular sports as a leisure activity.
  • the sport of handball is one in which it is particularly important that the ball should have a precise standard for its circumference, and a sphericity which is as near perfect as possible.
  • the ball circumference can measure more than 71 cm, which is more than the standard permitted by FIFA.
  • This variation in the circumference of a football becomes intensified on a water-logged pitch, in which the tendency towards non-uniform deformation is accentuated.
  • the manufacture of the wound ball type of sports ball is suitable for certain uses, but does not provide a finished product which is acceptable for organised and professional sports, where the traditional hand sewn outer case panel type construction is demanded.
  • the invention is concerned with the first discussed type of sports ball i.e. stitched outer case panels, in which the outer case is built-up from separate panels which are stitched together, and seeks to provide an outer case which has improved resistance to circumferential yielding under load and thereby to provide a design of inflatable sports ball suitable for mass production to required standards of external shape, and having more predictable performance.
  • an inflatable sports ball which comprises an inflatable bladder and an outer case surrounding the bladder, said outer case being built-up from a number of panels which are stitched together to form a shell within which the bladder can be inflated, in which each panel of the outer case comprises a laminate having an outer wearing layer to suit the particular type of sports ball, and at least one further layer of woven material adhering directly or indirectly to the outer layer and woven from yarns including high tensile yarns having high modulus of elasticity, whereby said further layer imparts to the laminate substantial resistance to circumferential expansion under load.
  • the bladder As the bladder is inflated, it expands radially and circumferentially until it comes into contact with the inner surface of the outer case, and further inflation then forms the outer case into a tight required external shape which confines the bladder.
  • the outer case In the preferred application of the invention to the manufacture of sports balls which require a substantially spherical shape e.g. footballs and handballs, the outer case is formed into a spherical shell.
  • the laminated panels from which the outer case is built-up are strongly resistant to circumferential expansion, by reason of the high tensile yarns incorporated in each layer of woven material, and therefore subject to a satisfactory level of ski in the production of the stitching-together of the panels of the outer case, a substantially truly spherical shape of sports ball can be obtained on inflation of the bladder, and substantially without risk of localised flaws being produced by differential expansion of portions of the outer case.
  • the invention therefore enables sports balls to be manufactured on a mass production basis to high standards of quality meeting acceptable tolerances with regard to the required outer shape of the ball e.g. sphericity in the case of a football or handball.
  • the panels are cut or stamped out of a single lamination which is assembled from a number of layers which are required to constitute each panel, and which will be a minimum of the outer (wearing) layer and the supporting layer of woven material incorporating high tensile yarns.
  • the outer layer can be made of any suitable material selected solely on the grounds of the required function of the outer layer itself e.g. resistance to water impregnation, textured surface to make the ball easy to "handle” or kick, and ability to bear decorative surface markings and without need to have any particular strength to resist circumferential expansion, since this will largely be provided by the high tensile yarns of the woven support layer of each lamination.
  • a woven layer i.e. with warp and weft yarns, and incorporating high tensile yarns in the lay- er
  • a support structure to be provided for each laminate which resists circumferential expansion, preferably to resist circumferential expansion in mutually perpendicular directions.
  • the entire woven fabric support layer may be made from high tensile yarns if required, but as the high tensile material is more expensive than conventional materials, such as cotton, polyester, polyester / cotton mix, or polyamide, it may be sufficient for many purposes to weave the fabric only partly from high tensile yarns, provided that the distribution of the high tensile yarns in the fabric is such as to provide substantial resistance to circumferential expansion in predetermined directions.
  • the high tensile yarns may be mixed or blended with lower cost yarns, or may be distributed as part only of the array of warp and / or weft yarns.
  • two fabric layers may be provided, with high tensile yarns running in one direction in each fabric layer (say the warp yarns) and less costly yarns running in the perpendicular direction, and with the two fabric layers superposed so that the high tensile yarns of one layer extend substantially perpendicular to the high tensile yarns of the other layer.
  • Preferred high tensile material which may be used comprise para-aramide threads of Kevlar (registered trade mark of DuPont de Nemours), although other generally equivalent material with a high modulus of elasticity may be used.
  • the lamination from which the outer case panels are formed may include further layers, such as an intermediate layer of expanded plastics foam, so as to give a degree of resilience to the "feel" of the ball when handled or kicked.
  • the invention may be applied to sports balls for use indoors or outdoors, and the use of high tensile yarns incorporated in the woven fabric support layer provides both more readily reproducible standards of ball manufacture to acceptable tolerances in external shape, a longer useful life of the ball, and improved resistance to the adverse effects of weather and climate. Further, despite the use of novel components in the internal support structure of the outer case, the external appearance of the sports ball can be made to conform to traditional designs if required.
  • the high tensile yarns incorporated in the fabric support layer of the outer case offer excellent dimensional stability, and minimal stretching under tensile load because of the very high modulus of elasticity of the high tensile yarns.
  • Suitable adhesive will be used in order to link the outer face of the inner strengthening fabric layer to the outer (wearing) layer, which is only required to provide resistance to wear and tear, and having necessary aesthetic qualities.
  • the outer layer may be made from any traditional material used to make sports balls, whether this be natural materials such as leather or synthetic materials e.g. with a polyurethane, polyvinylchloride or rubber base.
  • the innerface of the strengthening fabric layer may be engaged directly by the outer surface of the internal bladder as the latter is inflated, with the respective faces making a direct (non-adhesive) contact with each other.
  • the preferred high tensile material for making the high tensile yarns incorporated at least partly within the fabric support layer comprises Kevlar, and woven according to the following requirements:
  • the high tensile (HT) material used has been employed in a double layer, one of which is superposed 90 degrees in relation to the other in order to guarantee a maximum lengthening equilibrium in the two directions of the threads.
  • the generally superior lengthening is thus balanced in one of the directions of the threads in relation to the other on the woven material, by orienting the second material through 90 degrees in relation to the other.
  • the HT material is adhered perfectly to the natural latex with a twisted thread base and not a continuous filament base, and has the capacity to be impregnated in a homogeneous manner until complete saturation to become totally sealed. Because of the good mechanical anchorage of the adhesive, the liaison of the warp and weft threads is perfectly guaranteed to the points of interweaving and thus avoids fraying at the edges of the sewing of only three millimetres in width. For reasons of flexibility, resilience and mobility of the outer case, the craftsman is almost bound to use natural latex to:
  • the HT material in the inner strengthening layer for balls, brings out for the latter a maximum dimensional blockage in dry or damp conditions and whatever the atmospheric temperature (both summer and winter for the staggering of the football season for example) to ensure substantially true sphericity (when new) and in accordance with the weather, together with a circumference stability so as to keep the ball within the regulatory standards.
  • the HT material is equally favourable for balls used for indoor sports.
  • the HT material which may be used to form the whole of the inner strengthening is not limiting.
  • the inner strengthening layer may be formed with two materials in the case of an increased mass, for example with three or even four HT materials in the case of a low mass.
  • the inner strengthening layer In specific cases such as handball, it is necessary to form the inner strengthening layer with four or even five materials and with an increased mass for the increased weight per square meter which must accentuate the laminate on hand sewn ball cases (layer a and layer b).
  • the weight of a square meter of the laminate varies according to the type of ball manufactured. As an example the weight of the laminate for football cases is approximately 2.1 kg, whereas that of a handball must exceed 3kg per square meter.
  • HT materials with a para-aramide thread base
  • these could be combined with other types of material for example cotton, polyester, polyester / cotton mix or even polyamide, this being when two or more materials are necessary to shape the inner strengthening layer according to the weight required.
  • two HT materials at least are desirable one of which preferably is oriented at 90 degrees in relation to the other, to produce an inner strengthening layer for balls accentuating a dimensional stability and an optimal lengthening equilibrium in the two directions of the threads.
  • para-aramide polymer base threads used in the manufacture of the HT materials in the inner strengthening layer for balls are marketed by DuPont de Neumour under the brand name Kevlar and by Akzo under the brand name Twaron. Japanese companies also recently have been marketing these threads and which may be suitable for use in carrying out the invention.
  • the two embodiments of the invention comprise sports balls which can be inflated to a substantially spherical shape, and comprising a football and a handball, but it should be understood that the invention may be applied to other types of inflatable spherical sports ball, or to other shapes of inflatable sports ball, such as rugby ball and American football.
  • a typical example of inflatable sports ball to which the invention may be applied comprises a football, the exterior of which is shown in Figure 3.
  • the case of the football is designated generally by reference 20, and is built-up from modules each comprising a central pentagonal shape 21 which is surrounded by five hexagonal shapes 22 in known manner.
  • a woven fabric support layer of the outer case of the sports ball incorporates high tensile material comprising a 100% para-aramide twisted thread base with a metric number of 40/2, a mass of 220 grammes per square meter approximately and a serge weave 2/1.
  • FIG. 1 shows a section of the outer structure of a football, which is designated generally by reference 1, and which comprises an outer case which will be built-up from outer case panels stitched together by any known techniques.
  • the outer case panels comprise pentagonal and hexagonal panels, which are stitched together with hand sewing along overlapping edges.
  • the ball has an inflatable bladder 2 made of rubber and each panel of the outer case comprise a laminate having an outer wearing layer 5 to suit the particular type of sports ball, and at least one further layer 3 of woven material adhering directly or indirect to the outer layer 5 and woven from yarns including high tensile yarns of high modulus of elasticity, whereby the further layer 3 imparts to the overall laminate substantial resistance to circumferential expansion under load.
  • the layer 3 of woven material comprises a strengthening support layer which provides the major part of resistance to circumferential yielding of the outer case as a whole, and is woven from two materials with a para-aramide base.
  • the strengthening fabric layer provides high dimensional stability to the football, when new, and after prolonged use, and desirably an intermediate layer 6 of expanded plastics material, such as expanded polyurethane, underlies the outerwear- ing layer 5.
  • the textile layer 7 is woven desirably from a 50% cotton and 50% polyester mix.
  • the component layers of the laminate (5, 6, 7, 3) are adhesively united to form the lamination by use of any suitable adhesives to link the layers together, and desirably using adhesives having a natural latex base.
  • Reference 4 designates the outer layers of the football, comprising outer wearing layer 5, which may be made of polyurethane (unexpanded), and the underlying layer 6 of expanded polyurethane.
  • FIG. 2 shows a section of the outer structure of a hand sewn handball, in which the outer structure is designated generally by reference 8.
  • the outer case 8 confines an internal inflatable bladder 9 made e.g. of natural latex.
  • the hand stitched panels of the outer case comprise, facing inwards, a high dimensional stability inner strengthening fabric layer, comprising four layers assembled in a laminate as shown by reference 13, two of which are of high tensile woven yarns with a para-aramide thread base 11 to give the ball the required properties, and two layers 12 of conventional materials, with a polyester cotton thread base generally with a ratio of 70:30 to limit the overall cost of the final product.
  • the outer case lining 10 is leather.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Prostheses (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Laminated Bodies (AREA)
EP93308944A 1992-11-14 1993-11-09 Aufblasbarer Sportball Expired - Lifetime EP0598542B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929223919A GB9223919D0 (en) 1992-11-14 1992-11-14 Inflatable sports ball
GB9223919 1992-11-14

Publications (3)

Publication Number Publication Date
EP0598542A2 true EP0598542A2 (de) 1994-05-25
EP0598542A3 EP0598542A3 (de) 1995-03-29
EP0598542B1 EP0598542B1 (de) 1998-03-11

Family

ID=10725105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93308944A Expired - Lifetime EP0598542B1 (de) 1992-11-14 1993-11-09 Aufblasbarer Sportball

Country Status (6)

Country Link
EP (1) EP0598542B1 (de)
AT (1) ATE163866T1 (de)
DE (1) DE69317359T2 (de)
DK (1) DK0598542T3 (de)
ES (1) ES2112968T3 (de)
GB (2) GB9223919D0 (de)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19732824A1 (de) * 1997-07-30 1999-02-04 Adidas Int Bv Fußball
DE19738892A1 (de) * 1997-09-05 1999-03-11 Saga Sports Pvt Ltd Obermaterial für die Hülle eines Balles
DE19729753C2 (de) * 1996-07-16 2000-05-31 Joachim Mittmann Spielball mit einer elektrisch leitfähigen Oberfläche
EP1066959A1 (de) * 2000-02-18 2001-01-10 Joyful Long International Limited Aufblasbarer genähter Sportball und Verfahren zu seiner Herstellung
DE19758546C2 (de) * 1997-07-30 2003-11-27 Adidas Int Marketing Bv Fußball
DE20220150U1 (de) * 2002-12-28 2004-04-29 Puma Ag Rudolf Dassler Sport Ballhülle, insbesondere für Fußbälle
US8182379B2 (en) 2008-06-27 2012-05-22 Nike, Inc. Sport balls and methods of manufacturing the sport balls
US8192311B2 (en) 2008-06-27 2012-06-05 Nike, Inc. Sport ball with a textile restriction structure
US8210973B2 (en) 2008-06-27 2012-07-03 Nike, Inc. Sport ball bladder
WO2012091592A1 (en) 2010-12-27 2012-07-05 Instituto Superior Técnico Inflatable ball for footballing and recreational activities
US8262519B2 (en) 2009-03-20 2012-09-11 Nike, Inc. Sport ball casing and methods of manufacturing the casing
US8579743B2 (en) 2010-01-05 2013-11-12 Nike, Inc. Sport balls and methods of manufacturing the sport balls
US8597144B2 (en) 2011-06-28 2013-12-03 Nike, Inc. Sport ball casing with thermoplastic reinforcing material
US8617011B2 (en) 2010-12-03 2013-12-31 Nike, Inc. Sport ball with indented casing
US8926459B2 (en) 2012-03-30 2015-01-06 Nike, Inc. Sport balls and methods of manufacturing the sport balls
US8974330B2 (en) 2009-03-20 2015-03-10 Nike, Inc. Sport ball casing and methods of manufacturing the casing
US9370693B2 (en) 2010-12-03 2016-06-21 Nike, Inc. Sport ball with indented casing
US9457525B2 (en) 2008-06-27 2016-10-04 Nike, Inc. Sport ball casing and methods of manufacturing the casing
US9457239B2 (en) 2008-06-27 2016-10-04 Nike, Inc. Sport ball casing with integrated bladder material

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0705624B1 (de) * 1994-10-05 2000-06-28 Molten Corporation Sportball sowie Verfahren zu dessen Herstellung
US8771115B2 (en) 2011-05-04 2014-07-08 Nike, Inc. Sport ball with an inflation-retention bladder
US8672784B2 (en) 2011-05-04 2014-03-18 Nike, Inc. Sport ball with an inflation-retention bladder
EP3162413B1 (de) * 2015-10-30 2019-03-06 Nivia Synthetics Pvt. Ltd. Mehrschichtiges gaming objekt

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1245015A (en) * 1969-07-02 1971-09-02 Benjamin Crook & Sons Ltd Improvements in or relating to inflatable balls
DE3739490A1 (de) * 1987-11-21 1989-06-01 Walter Ziegler Besonders gearteter kugelfoermiger, aufblasbarer ballon bzw. behaelter zur aufnahme und zum lagern von pressluft und komprimierten gasen
EP0385872A2 (de) * 1989-03-03 1990-09-05 Adidas Sarragan France S.A.R.L. Bälle für Sport oder Freizeit mit einer äusseren Beschichtung aus Integralschaum und ihre Herstellung
WO1992000876A1 (fr) * 1990-07-06 1992-01-23 Louis Carrot Dispositif de securite pour helicopteres et machines similaires a voilure tournante

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1245015A (en) * 1969-07-02 1971-09-02 Benjamin Crook & Sons Ltd Improvements in or relating to inflatable balls
DE3739490A1 (de) * 1987-11-21 1989-06-01 Walter Ziegler Besonders gearteter kugelfoermiger, aufblasbarer ballon bzw. behaelter zur aufnahme und zum lagern von pressluft und komprimierten gasen
EP0385872A2 (de) * 1989-03-03 1990-09-05 Adidas Sarragan France S.A.R.L. Bälle für Sport oder Freizeit mit einer äusseren Beschichtung aus Integralschaum und ihre Herstellung
WO1992000876A1 (fr) * 1990-07-06 1992-01-23 Louis Carrot Dispositif de securite pour helicopteres et machines similaires a voilure tournante

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19729753C2 (de) * 1996-07-16 2000-05-31 Joachim Mittmann Spielball mit einer elektrisch leitfähigen Oberfläche
DE19732824A1 (de) * 1997-07-30 1999-02-04 Adidas Int Bv Fußball
DE19732824C2 (de) * 1997-07-30 1999-08-19 Adidas Int Bv Fußball
DE19758546C2 (de) * 1997-07-30 2003-11-27 Adidas Int Marketing Bv Fußball
DE19738892A1 (de) * 1997-09-05 1999-03-11 Saga Sports Pvt Ltd Obermaterial für die Hülle eines Balles
EP1066959A1 (de) * 2000-02-18 2001-01-10 Joyful Long International Limited Aufblasbarer genähter Sportball und Verfahren zu seiner Herstellung
DE20220150U1 (de) * 2002-12-28 2004-04-29 Puma Ag Rudolf Dassler Sport Ballhülle, insbesondere für Fußbälle
US8182379B2 (en) 2008-06-27 2012-05-22 Nike, Inc. Sport balls and methods of manufacturing the sport balls
US8192311B2 (en) 2008-06-27 2012-06-05 Nike, Inc. Sport ball with a textile restriction structure
US8210973B2 (en) 2008-06-27 2012-07-03 Nike, Inc. Sport ball bladder
US9457239B2 (en) 2008-06-27 2016-10-04 Nike, Inc. Sport ball casing with integrated bladder material
US9457525B2 (en) 2008-06-27 2016-10-04 Nike, Inc. Sport ball casing and methods of manufacturing the casing
US8777787B2 (en) 2008-06-27 2014-07-15 Nike, Inc. Sport ball
US8597450B2 (en) 2008-06-27 2013-12-03 Nike, Inc. Method of manufacturing a sport ball
US9327167B2 (en) 2009-03-20 2016-05-03 Nike, Inc. Sport ball casing and methods of manufacturing the casing
US8974330B2 (en) 2009-03-20 2015-03-10 Nike, Inc. Sport ball casing and methods of manufacturing the casing
US9539473B2 (en) 2009-03-20 2017-01-10 Nike, Inc. Sport ball casing and methods of manufacturing the casing
US8262519B2 (en) 2009-03-20 2012-09-11 Nike, Inc. Sport ball casing and methods of manufacturing the casing
US8608599B2 (en) 2009-03-20 2013-12-17 Nike, Inc. Sport ball casing and methods of manufacturing the casing
US8579743B2 (en) 2010-01-05 2013-11-12 Nike, Inc. Sport balls and methods of manufacturing the sport balls
US9814941B2 (en) 2010-01-05 2017-11-14 Nike, Inc. Sport balls and methods of manufacturing the sport balls
US9254424B2 (en) 2010-12-03 2016-02-09 Nike Inc. Sport ball with indented casing
US9370693B2 (en) 2010-12-03 2016-06-21 Nike, Inc. Sport ball with indented casing
US9468815B2 (en) 2010-12-03 2016-10-18 Nike, Inc. Method of making sport ball with indented casing
US8617011B2 (en) 2010-12-03 2013-12-31 Nike, Inc. Sport ball with indented casing
WO2012091592A1 (en) 2010-12-27 2012-07-05 Instituto Superior Técnico Inflatable ball for footballing and recreational activities
US9370695B2 (en) 2011-06-28 2016-06-21 Nike, Inc. Sport ball casing with thermoplastic reinforcing material
US8597144B2 (en) 2011-06-28 2013-12-03 Nike, Inc. Sport ball casing with thermoplastic reinforcing material
US8926459B2 (en) 2012-03-30 2015-01-06 Nike, Inc. Sport balls and methods of manufacturing the sport balls
US9884227B2 (en) 2012-03-30 2018-02-06 Nike, Inc. Sport balls and methods of manufacturing the sport balls

Also Published As

Publication number Publication date
GB2272380B (en) 1995-08-23
EP0598542A3 (de) 1995-03-29
DE69317359T2 (de) 1998-10-08
DK0598542T3 (da) 1998-12-21
DE69317359D1 (de) 1998-04-16
ATE163866T1 (de) 1998-03-15
GB2272380A (en) 1994-05-18
GB9223919D0 (en) 1993-01-06
ES2112968T3 (es) 1998-04-16
EP0598542B1 (de) 1998-03-11
GB9320877D0 (en) 1993-12-01

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