EP0578269A1 - Boîtier pressurisé pour conserver des balles de tennis - Google Patents

Boîtier pressurisé pour conserver des balles de tennis Download PDF

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Publication number
EP0578269A1
EP0578269A1 EP93112205A EP93112205A EP0578269A1 EP 0578269 A1 EP0578269 A1 EP 0578269A1 EP 93112205 A EP93112205 A EP 93112205A EP 93112205 A EP93112205 A EP 93112205A EP 0578269 A1 EP0578269 A1 EP 0578269A1
Authority
EP
European Patent Office
Prior art keywords
container
valve
container according
cover plate
pressure
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.)
Withdrawn
Application number
EP93112205A
Other languages
German (de)
English (en)
Inventor
Helmut Kern
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0578269A1 publication Critical patent/EP0578269A1/fr
Withdrawn legal-status Critical Current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
    • A63B39/00—Hollow non-inflatable balls, i.e. having no valves
    • A63B39/02—Arrangements for maintaining the pressure
    • A63B39/025—Arrangements for maintaining the pressure using containers with pressurising means for balls not in use

Definitions

  • the invention relates to a pressure vessel for storing one or more tennis balls, consisting of an upper part and a lower part, the common internal width of which is somewhat larger than a predetermined diameter, which expediently corresponds to one or several times the diameter of a tennis ball, the upper part and the Bottom part to form the closed container connected to each other sealingly, in particular screwed.
  • Gas-filled tennis balls are usually under a slight overpressure and are therefore usually stored in cylindrical pressure containers in which there is a pressure corresponding to the internal pressure of a tennis ball. It is disadvantageous that the pressure container can no longer be closed by the tennis player after being opened by the tennis player in such a way that the desired excess pressure is generated in the process. As a result, tennis balls that have only been played for a short time can no longer be stored under a pressure corresponding to their internal pressure for further use, so that after a long time they lose their tension and are therefore no longer playable.
  • the invention is therefore based on the object of creating a possibility of storing pre-recorded tennis balls under a pressure corresponding to their internal pressure.
  • the tank expediently its upper part, has a filling valve.
  • the upper part and lower part of the container can be connected to one another without pressure, in particular screwed.
  • the desired internal pressure can be generated in the closed pressure container via the filling valve by connecting the filling valve to a compressed air source in the pressure container. This increases the lifespan of the tennis balls stored and stored in the container.
  • a particularly simple embodiment of the invention provides a bicycle valve as the filling valve, which can either be a hose valve with a valve hose or a so-called "patent" valve with a valve ball.
  • an overpressure valve on the container which opens automatically, for example, when the internal pressure in the container is greater than about 1.8 bar.
  • the pressure relief valve is expediently attached to the cover plate next to the filling valve.
  • the cylindrical, plastic container 1 is used to hold a row of four tennis balls a, b, c, d each of the same diameter.
  • the clear width or the inner diameter of the container 1 is only slightly larger than the mentioned outer diameter of a tennis ball.
  • the container 1 consists of a lower part 8 with a bottom 4 and an upper opening, which lies approximately in the middle of the uppermost filled tennis ball a.
  • a circumference Thread 12 On the outside of the wall-end section 9 of the lower part 8 delimiting the opening is a circumference Thread 12 and at its end remote from the opening a radially outwardly projecting annular web 14 is formed. Otherwise, the outer surface of the lower part 8 is smooth.
  • the upper part 3 of the container 1 has essentially the same outer and inner diameter as the lower part 8 and is provided on its cylindrical outer surface with axially extending grip ribs 18.
  • the upper part 3 also has a cover plate 16 and a circumferential collar 6 which rises above it.
  • the upper part is open with respect to the cover plate 16.
  • the free end section 11 of the outer wall 7 of the upper part 3 is widened radially outward and provided with a counter thread 13 on its axially extending annular inner surface.
  • the wall section 11 ends with a radial enlargement 15, in the underside of which an annular groove for receiving an annular seal 17 is provided.
  • the upper part 3 with its counter thread 13 can therefore be screwed onto the external thread 12 of the lower part 8 until both the radial extension 15 sits sealingly on the web 14 with compression of the seal 17, with an annular shoulder 19 at the transition then simultaneously the wall 7 to section 11 is seated on the upper edge of the opening of the lower part 8.
  • a filling valve 2 in the form of a bicycle valve is firmly embedded in the cover plate 16 of the upper part 3 and, after unscrewing its protective cap 20, allows the closed interior of the container 1 to be filled with compressed air.
  • a pressure of, for example, 1 bar can thus be built up inside the container 1, which corresponds to the internal pressure of unused tennis balls a.
  • a pressure relief valve 10 is fastened in the cover plate 16 in addition to the filling valve 2, which is designed for an overpressure of, for example, 1.5 bar and opens automatically when the pressure rises above the stated value, at a pressure below 1. 5 bar, however, closes.
  • the collar 6 has a height above the cover plate 16 which is somewhat greater than the height at which the filling valve 2 rises above the cover plate 16.
  • the filling valve 2 is opened at its closure, not shown, so that the negative pressure escapes from the container 1 and then the upper part 3 can be unscrewed from the lower part 8 with ease.
  • the filling valve and / or the pressure relief valve at another point on the container, for example on the bottom 4 of the lower part 8, the bottom 4 then being conically lowered from the edge to the center and the filling valve in the center of the bottom 4 can be attached.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Closures For Containers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP93112205A 1992-06-19 1993-06-17 Boîtier pressurisé pour conserver des balles de tennis Withdrawn EP0578269A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9208209U DE9208209U1 (de) 1992-06-19 1992-06-19 Tennisballdruckbehälter mit Ventil im Schraubverschluß zur Aufnahme von Drucktennisbällen, wiederverwendbar
DE9208209U 1992-06-19

Publications (1)

Publication Number Publication Date
EP0578269A1 true EP0578269A1 (fr) 1994-01-12

Family

ID=6880706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93112205A Withdrawn EP0578269A1 (fr) 1992-06-19 1993-06-17 Boîtier pressurisé pour conserver des balles de tennis

Country Status (2)

Country Link
EP (1) EP0578269A1 (fr)
DE (1) DE9208209U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9411154U1 (de) * 1994-07-09 1994-09-08 Fagus-Grecon Greten Gmbh & Co Kg, 31061 Alfeld Vorrichtung zur Beeinflussung des Innendrucks von Tennisbällen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29603964U1 (de) * 1996-03-04 1996-04-25 Kratochvill, Jürgen, 44579 Castrop-Rauxel Behälter zur Druckerhaltung von Tennisbällen

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB327678A (en) * 1928-12-28 1930-03-28 Thomas Smith Anderson Improvements in and relating to the treatment of tennis balls and other inflated rubber articles
US3233727A (en) * 1963-09-13 1966-02-08 Karl H Wilson Multiple use packaging container
DE3141436A1 (de) * 1981-10-20 1983-06-23 Manfred Dipl.-Phys. 4800 Bielefeld Geilhaupt Ventildeckel fuer ueberdruck-balldose
DE8607995U1 (de) * 1986-03-22 1986-07-10 Gorenflo, Ralph, 6090 Rüsselsheim Tennisballaufbewahrungsbehälter
DE8707231U1 (de) * 1987-05-20 1987-09-17 Günther, Jürgen, 7750 Konstanz Behälter zur Aufnahme wenigestens eines Tennisballes
DE8815577U1 (de) * 1988-12-15 1989-05-18 Schmid, Friedrich, Ing.(grad.), 8417 Lappersdorf Lagerbehälter für Tennisbälle
DE3815641A1 (de) * 1988-05-07 1989-11-16 Peter Wiering Verschliessbarer behaelter fuer bespielte tennisbaelle
DE9000253U1 (de) * 1990-01-11 1990-03-01 Roedl, Alexander, 8011 Buch Druckbehälter für Tennisbälle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB327678A (en) * 1928-12-28 1930-03-28 Thomas Smith Anderson Improvements in and relating to the treatment of tennis balls and other inflated rubber articles
US3233727A (en) * 1963-09-13 1966-02-08 Karl H Wilson Multiple use packaging container
DE3141436A1 (de) * 1981-10-20 1983-06-23 Manfred Dipl.-Phys. 4800 Bielefeld Geilhaupt Ventildeckel fuer ueberdruck-balldose
DE8607995U1 (de) * 1986-03-22 1986-07-10 Gorenflo, Ralph, 6090 Rüsselsheim Tennisballaufbewahrungsbehälter
DE8707231U1 (de) * 1987-05-20 1987-09-17 Günther, Jürgen, 7750 Konstanz Behälter zur Aufnahme wenigestens eines Tennisballes
DE3815641A1 (de) * 1988-05-07 1989-11-16 Peter Wiering Verschliessbarer behaelter fuer bespielte tennisbaelle
DE8815577U1 (de) * 1988-12-15 1989-05-18 Schmid, Friedrich, Ing.(grad.), 8417 Lappersdorf Lagerbehälter für Tennisbälle
DE9000253U1 (de) * 1990-01-11 1990-03-01 Roedl, Alexander, 8011 Buch Druckbehälter für Tennisbälle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9411154U1 (de) * 1994-07-09 1994-09-08 Fagus-Grecon Greten Gmbh & Co Kg, 31061 Alfeld Vorrichtung zur Beeinflussung des Innendrucks von Tennisbällen

Also Published As

Publication number Publication date
DE9208209U1 (de) 1992-09-10

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