ZA796323B - Cores for tennis balls - Google Patents

Cores for tennis balls

Info

Publication number
ZA796323B
ZA796323B ZA00796323A ZA796323A ZA796323B ZA 796323 B ZA796323 B ZA 796323B ZA 00796323 A ZA00796323 A ZA 00796323A ZA 796323 A ZA796323 A ZA 796323A ZA 796323 B ZA796323 B ZA 796323B
Authority
ZA
South Africa
Prior art keywords
cores
tennis balls
tennis
balls
Prior art date
Application number
ZA00796323A
Other languages
English (en)
Inventor
J Schofield
R Haines
Original Assignee
Dunlop 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 Dunlop Ltd filed Critical Dunlop Ltd
Publication of ZA796323B publication Critical patent/ZA796323B/xx

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B39/00—Hollow non-inflatable balls, i.e. having no valves
    • A63B39/06—Special coverings
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B45/00—Apparatus or methods for manufacturing balls
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B39/00—Hollow non-inflatable balls, i.e. having no valves
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00—Compositions of unspecified rubbers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B39/00—Hollow non-inflatable balls, i.e. having no valves
    • A63B2039/003—Hollow non-inflatable balls, i.e. having no valves substantially hollow and pressureless
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S273/00—Amusement devices: games
    • Y10S273/10—Butadiene

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
ZA00796323A 1979-01-12 1979-11-21 Cores for tennis balls ZA796323B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7901306 1979-01-12

Publications (1)

Publication Number Publication Date
ZA796323B true ZA796323B (en) 1980-11-26

Family

ID=10502507

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00796323A ZA796323B (en) 1979-01-12 1979-11-21 Cores for tennis balls

Country Status (12)

Country Link
US (1) US4306719A (xx)
JP (1) JPS5596171A (xx)
KR (1) KR820002271B1 (xx)
AU (1) AU526366B2 (xx)
DE (1) DE3000778C2 (xx)
ES (1) ES486798A0 (xx)
FR (1) FR2446119A1 (xx)
IE (1) IE49137B1 (xx)
NL (1) NL7909319A (xx)
PH (1) PH15214A (xx)
SE (1) SE441335B (xx)
ZA (1) ZA796323B (xx)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60106470A (ja) * 1983-11-14 1985-06-11 住友ゴム工業株式会社 無圧テニスボ−ル
JPS60106471A (ja) * 1983-11-15 1985-06-11 住友ゴム工業株式会社 テニスボ−ル用コア
JP2764643B2 (ja) * 1990-06-01 1998-06-11 住友ゴム工業株式会社 無圧テニスボール
JP2558559B2 (ja) * 1991-05-10 1996-11-27 住友ゴム工業株式会社 無圧テニスボール
US6030304A (en) * 1996-03-12 2000-02-29 Wilson Sporting Goods Co. Pressureless tennis ball
US8123638B2 (en) * 2008-12-05 2012-02-28 Maui Toys, Inc. High bounce structure: sky ball
US11951360B2 (en) 2018-08-28 2024-04-09 Wilson Sporting Goods Co. Tennis ball
US10918913B2 (en) * 2018-08-28 2021-02-16 Wilson Sporting Goods Co. Tennis ball
US11426637B2 (en) 2020-02-11 2022-08-30 Wilson Sporting Goods Co. Tennis ball having a thermoplastic core
US11192001B2 (en) * 2020-02-11 2021-12-07 Wilson Sporting Goods Co. Tennis ball having a thermoplastic core
US11247103B2 (en) 2020-02-11 2022-02-15 Wilson Sporting Goods Co. Tennis ball having a thermoplastic core

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA766651A (en) * 1967-09-05 Dunlop Rubber Company Limited Playballs
CA766997A (en) * 1967-09-12 Dunlop Rubber Company Limited Playballs
BE756475Q (fr) 1964-10-14 1971-03-01 Dunlop Co Ltd Balles de tennis de table
FR1439630A (fr) * 1965-07-08 1966-05-20 Dunlop Rubber Co Balles de jeux perfectionnées
SE339751B (xx) * 1966-07-22 1971-10-18 Dunlop Co Ltd
GB1177224A (en) 1966-07-22 1970-01-07 Dunlop Co Ltd Improvements in or relating to Playballs
GB1367084A (en) * 1970-11-23 1974-09-18 Dunlop Ltd Method moulding and apparatus therefor
US4089820A (en) * 1972-01-19 1978-05-16 Phillips Petroleum Company Curable ethylene/alpha-monoolefin/diene polymer-unsaturated rubbery polymer blends
US4008190A (en) * 1973-01-02 1977-02-15 The B. F. Goodrich Company Vulcanizates of EPDM and diene rubber blends
GB1520254A (en) 1974-12-30 1978-08-02 Uniroyal Ltd Golf balls
US4031169A (en) * 1975-09-11 1977-06-21 Uniroyal Inc. Thermoplastic elastomeric polymer blend
US4036912A (en) * 1975-10-06 1977-07-19 The B. F. Goodrich Company Thermoplastic polymer blends of EP or EPDM polymer with crystalline polypropylene
US4145045A (en) * 1977-08-08 1979-03-20 Colgate-Palmolive Company Pressureless tennis ball

Also Published As

Publication number Publication date
NL7909319A (nl) 1980-07-15
KR820002271B1 (ko) 1982-12-13
AU5368879A (en) 1980-07-17
ES8101994A1 (es) 1980-12-16
DE3000778A1 (de) 1980-07-24
IE800058L (en) 1980-07-12
JPS5596171A (en) 1980-07-22
SE8000173L (sv) 1980-07-13
FR2446119A1 (fr) 1980-08-08
SE441335B (sv) 1985-09-30
ES486798A0 (es) 1980-12-16
FR2446119B1 (xx) 1982-12-10
IE49137B1 (en) 1985-08-07
US4306719A (en) 1981-12-22
AU526366B2 (en) 1983-01-06
DE3000778C2 (de) 1984-10-25
PH15214A (en) 1982-09-27

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