IT1220962B - Anime per palle da tennis - Google Patents

Anime per palle da tennis

Info

Publication number
IT1220962B
IT1220962B IT8019179A IT1917980A IT1220962B IT 1220962 B IT1220962 B IT 1220962B IT 8019179 A IT8019179 A IT 8019179A IT 1917980 A IT1917980 A IT 1917980A IT 1220962 B IT1220962 B IT 1220962B
Authority
IT
Italy
Prior art keywords
souls
tennis balls
tennis
balls
Prior art date
Application number
IT8019179A
Other languages
English (en)
Other versions
IT8019179A0 (it
Inventor
Christopher Robert Haines
John Gary Schofield
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 IT8019179A0 publication Critical patent/IT8019179A0/it
Application granted granted Critical
Publication of IT1220962B publication Critical patent/IT1220962B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B29D22/04—Spherical articles, e.g. balls
    • 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
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
IT8019179A 1979-01-12 1980-01-11 Anime per palle da tennis IT1220962B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7901306 1979-01-12
GB7938958A GB2038643B (en) 1979-01-12 1979-11-09 Cores for tennis-balls

Publications (2)

Publication Number Publication Date
IT8019179A0 IT8019179A0 (it) 1980-01-11
IT1220962B true IT1220962B (it) 1990-06-21

Family

ID=26270218

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8019179A IT1220962B (it) 1979-01-12 1980-01-11 Anime per palle da tennis

Country Status (2)

Country Link
GB (1) GB2038643B (it)
IT (1) IT1220962B (it)

Families Citing this family (10)

* 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
US4765853A (en) * 1987-10-07 1988-08-23 Hoffman Allan C Method of making a pressurized ball
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
US10918913B2 (en) * 2018-08-28 2021-02-16 Wilson Sporting Goods Co. Tennis ball
US11951360B2 (en) 2018-08-28 2024-04-09 Wilson Sporting Goods Co. Tennis ball
US11426637B2 (en) 2020-02-11 2022-08-30 Wilson Sporting Goods Co. Tennis ball having a thermoplastic core
US12599814B2 (en) 2020-02-11 2026-04-14 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

Also Published As

Publication number Publication date
IT8019179A0 (it) 1980-01-11
GB2038643B (en) 1983-03-23
GB2038643A (en) 1980-07-30

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