FR2214492A1 - Inflated play-balls, esp. tennis balls - with a halogenated hydrocarbon gas-filled hollow shell - Google Patents

Inflated play-balls, esp. tennis balls - with a halogenated hydrocarbon gas-filled hollow shell

Info

Publication number
FR2214492A1
FR2214492A1 FR7345975A FR7345975A FR2214492A1 FR 2214492 A1 FR2214492 A1 FR 2214492A1 FR 7345975 A FR7345975 A FR 7345975A FR 7345975 A FR7345975 A FR 7345975A FR 2214492 A1 FR2214492 A1 FR 2214492A1
Authority
FR
France
Prior art keywords
balls
esp
inflated
play
halogenated hydrocarbon
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
FR7345975A
Other languages
French (fr)
Other versions
FR2214492B3 (en
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.)
Aerojet Rocketdyne Holdings Inc
Original Assignee
General Tire and Rubber Co
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 General Tire and Rubber Co filed Critical General Tire and Rubber Co
Publication of FR2214492A1 publication Critical patent/FR2214492A1/en
Application granted granted Critical
Publication of FR2214492B3 publication Critical patent/FR2214492B3/fr
Granted legal-status Critical Current

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
    • A63B39/02—Arrangements for maintaining the pressure

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Colloid Chemistry (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

Play-balls, esp. tennis balls, having a hollow shell inflated with a halogenated hydrocarbon gas (esp. C3F8) pref. to a press. of >=2 atmos., have a longer life (>=5 months) than balls inflated with a usual gas e.g. air, steam or ammonia) because of the reduced rate of loss of the gas.
FR7345975A 1973-01-18 1973-12-21 Inflated play-balls, esp. tennis balls - with a halogenated hydrocarbon gas-filled hollow shell Granted FR2214492A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32470173A 1973-01-18 1973-01-18

Publications (2)

Publication Number Publication Date
FR2214492A1 true FR2214492A1 (en) 1974-08-19
FR2214492B3 FR2214492B3 (en) 1976-10-15

Family

ID=23264719

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7345975A Granted FR2214492A1 (en) 1973-01-18 1973-12-21 Inflated play-balls, esp. tennis balls - with a halogenated hydrocarbon gas-filled hollow shell

Country Status (5)

Country Link
JP (1) JPS49135730A (en)
AU (1) AU6309373A (en)
DE (1) DE2402418A1 (en)
FR (1) FR2214492A1 (en)
ZA (1) ZA738777B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2399258A1 (en) * 1977-08-01 1979-03-02 Gen Tire & Rubber Co INFLATED GAME BALL SUITABLE TO STAY FOR A LONG TIME UNDER PRESSURE AND TREATED TO GENERATE ON IMPACT A RELATIVELY LOW NOISE
FR2413097A1 (en) * 1977-12-29 1979-07-27 Gen Tire & Rubber Co Inflated games ball with elastomeric gas-permeable wall - contg. inflation system using halogenated gas
FR2425007A2 (en) * 1978-05-05 1979-11-30 Rudy M F AUTOMATICALLY INFLATED DEVICE BY PENETRATION OF EXTERNAL AIR BY DIFFUSION

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098504A (en) * 1975-10-31 1978-07-04 The General Tire & Rubber Company Tennis ball
US4300767A (en) * 1977-08-01 1981-11-17 The General Tire & Rubber Company Inflated game ball having long lasting pressure retention with decreased noise
JPS5483533A (en) * 1977-12-14 1979-07-03 Gen Tire & Rubber Co Expanded ball for game that holding of pressure can be continued
DE2756631C2 (en) * 1977-12-19 1982-06-16 The General Tire & Rubber Co., 44329 Akron, Ohio Pressurized match ball
US4248275A (en) * 1979-02-09 1981-02-03 The General Tire & Rubber Company Method for obtaining uniformly mixed gases in a ball mold

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2399258A1 (en) * 1977-08-01 1979-03-02 Gen Tire & Rubber Co INFLATED GAME BALL SUITABLE TO STAY FOR A LONG TIME UNDER PRESSURE AND TREATED TO GENERATE ON IMPACT A RELATIVELY LOW NOISE
FR2413097A1 (en) * 1977-12-29 1979-07-27 Gen Tire & Rubber Co Inflated games ball with elastomeric gas-permeable wall - contg. inflation system using halogenated gas
FR2425007A2 (en) * 1978-05-05 1979-11-30 Rudy M F AUTOMATICALLY INFLATED DEVICE BY PENETRATION OF EXTERNAL AIR BY DIFFUSION

Also Published As

Publication number Publication date
FR2214492B3 (en) 1976-10-15
JPS49135730A (en) 1974-12-27
AU6309373A (en) 1975-06-05
DE2402418A1 (en) 1974-07-25
ZA738777B (en) 1974-10-30

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Legal Events

Date Code Title Description
ST Notification of lapse