Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D47/00—Closures with filling and discharging, or with discharging, devices
  • B65D47/04—Closures with discharging devices other than pumps
  • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
  • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
  • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
  • B65D47/2081—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve port

Definitions

• Thi s invention refers to an improvement in such self-closing closu res which include two menbers provided to be connected to each other along out er peripheral portions thereof , one of said meirbers having a diaphragm provided with a central outlet opening and the other one having a stem which in the closed position of the closure sealingly closes said outlet opening but by a deformation of the diaphragm caused by a pressure exerted upon the material to be di scharged can uncover said outl et opening .
• Self-closing closures of the kind referred to have proven to be very useful especially as closures for tubes.
• the main obj ect of the invention has been to provide a simple and reliable device of the kind referred to.
• a further object has been to provide a simple arrangement for locking the closure by transport and so forth such that an unintenticnal discharge of material cannot occur from the tube or the like to which the closure is connected.
• the drawing illustrates an exa ⁇ plifying errbodiment of the invention and the sole figure shows a transverse section through a closure according to the invention and connected to a tube.
• the closure as shown includes a first closure meirber generally designated as 1.
• This menber has an outer, annular portion 2 from which extends an annular sealing lip 3, which as appears from the drawing- i s conical and extends downwardly from the portion 2.
• the annular portion 2 continues via an annular wall portion 5 in an attachment portion 6 which i s tubular and in the inner surface thereof has a profiled groove 7 and a serrated port ion 8 for a purpose to be described.
• the attachm-ent portion 6 i s by means of a nu ⁇ ber of ribs 9 connected to a stem 10, which in the upper end thereof has a cylindrical portion 11 , provided to sealingly cooperate with the outlet opening of the diaphragm member of the closure.
• the wall portion 5, which connects the outer portion 2 with the attachment portion 6 has an air inlet opening 12.
• This tube like the closure itself , is preferably made from a plastics material and has deformable walls.
• the conical opening of the tube has an annular, outwardly directed bead 15 and has thereabove a serrated portion 16.
• the bead i s portion 16 cooperates with the portion 8 in order to prevent the closure me ⁇ ber 1 from being rotated in relation to the tube.
• the conical opening of the tube and/or the closure member 1 i s made f rom a material with elastically yieldable characteri stics such that the closure merrber in a manner known per se may be snapped to the opening of the tube.
• Reference numeral 17 denotes a second closure merrber which has an annular outer portion 18 having an annular profiled groove 19 in the inner surface thereof .
• Thi s groove is so shaped that the seal ing l ip of the closure member 1 may be received in the groove without risk for the closure menbers 1 and 17 to unintentionally be separated from each other.
• the seal ing lip as mentioned i s conical and the groove 19 preferably ends in a surface perpendicular to the l ength direction of the closure. Also the closure members 1 and 17 are thus snapped together.
• the diaphragm 20 continues in an oppositely directed conical porti on 21 having an otlet opening 22 provided to cooperate with the end portion 11 of the stem 10.
• the lower end surface of the portion 18 is situated at a di stance from the coni cal opening of the tube 14 such that an annular space i s generated between the outer and l ower portion of the closure and the coni cal opening of the tube.
• a valve me ⁇ ber generally designated as 23 and preferably made f rom a plast ics mat erial with rubber-l ike properties includes a cyl indrical , elongated shaf t member 24 which in the upper end thereof continues in a funnel-shaped or bowl-shaped portion 25 whi ch has an upwardly successively dimini shing wall thickness such that the upper edge of the funnel wil l constitut e an annular seal ing l ip. Intermediate its ends the shaft portion has a pair of annular beads 26 located at a certain di stance from each other.
• the valve member now described forms together with the air inlet opening 12 a check valve and for thi s purpose the funnel-shaped portion 25 of the valve me ⁇ ber is inserted in the opening 12 and is axially fixed.
• the latter fact is obtained in that the lower end of the shaft from above is pressed into an opening of substantially the same diameter as the shaft portion and provided in a proj ection 27 extending from the portion 6.
• the opening in this proj ection has a diameter less than the beads 26 but owing to the fact that the valve me ⁇ ber is made from a rubber-like, elastically compressible material the lower bead (which preferably has less diameter than the lower one) is compressed to such an extent that it can be forced through the opening 27 when the valve member from above is pressed down towards the proj ection.
• valve me ⁇ ber is as mentioned made from a rubber-like material and the funnel-shaped portion thereof snugly fits in the opening 12.
• a closure be designed so as to be locked against unintentional opening.
• the diaphragm portion preferably from the t ransition between the diaphragm itself and the portion 21 a number of proj ections 28 directed towards the interior of the closure and having hook-shaped catches 29.
• Said catches 29 are so positioned in relation to the ribs that they in a certain angular position of the two closure menbers relative to each other may grasp the lower edge of the ribs and thus prevent the diaphragm from leaving its ini tial , closed position .
• the closure i s suitable for connection to tubes and similar containers the content of which is intended to be exerted to a pressure, preferably a manual pressure.

Priority Applications (1)

Applications Claiming Priority (4)

Publications (1)

Family

ID=26657622

Family Applications (1)

Country Status (5)

Cited By (9)

Families Citing this family (1)

Citations (6)

• 1981
  • 1981-07-07 WO PCT/SE1981/000204 patent/WO1982000128A1/en active Application Filing
  • 1981-07-07 DE DE813152153A patent/DE3152153A1/de not_active Withdrawn
  • 1981-07-07 GB GB8202431A patent/GB2091708A/en not_active Withdrawn
  • 1981-07-07 JP JP50235981A patent/JPS57501175A/ja active Pending
  • 1981-07-09 FR FR8113555A patent/FR2486501A1/fr not_active Withdrawn

Patent Citations (6)

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