US3528091A - Bottle cap - Google Patents

Bottle cap Download PDF

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Publication number
US3528091A
US3528091A US712801A US3528091DA US3528091A US 3528091 A US3528091 A US 3528091A US 712801 A US712801 A US 712801A US 3528091D A US3528091D A US 3528091DA US 3528091 A US3528091 A US 3528091A
Authority
US
United States
Prior art keywords
cap
section
plug
closure
bottle
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.)
Expired - Lifetime
Application number
US712801A
Other languages
English (en)
Inventor
Werner Sachau
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.)
Tivoli Werke AG
Original Assignee
Tivoli Werke AG
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 Tivoli Werke AG filed Critical Tivoli Werke AG
Application granted granted Critical
Publication of US3528091A publication Critical patent/US3528091A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/16—Snap-on caps or cap-like covers
    • B65D41/18—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics
    • B65D41/185—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics with integral internal sealing means
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/20—Sealing means
    • B65D2251/205—Inserted

Definitions

  • This invention is a combination capand plug-type closure for bottles, jars, and similar containers.
  • the closure of this invention is formed of an outer cap section of hard plastic material and an inner centrally disposed plug section of soft plastic material.
  • This invention relates broadly to the field of closure devices for bottles, jars, and similar containers. More particularly, the closure device of this invention is a combined cap-type and plug-type closure.
  • combination cap and plug type plastic bottle stoppers which are formed of hard plastic cap sections and softer plastic plug sections.
  • An example of this construction is seen in US. Pat. 3,285,451, issued to Erich Golde (Nov. 15, 1966).
  • these bottle stoppers are difficult to assemble and, as a consequence, are not suitable for automated mechanical sealing of bottles with rapidly running equipment.
  • the design of the presently known combination cap and plug type bottle stoppers fails to provide a reliable means for maintaining connection between the cap and plug section.
  • these bottle stoppers have crevices or spaces between the respective parts which facilitate accumulation of contaminant that precludes reuse and in some cases acts to weaken the connection of the parts.
  • a further object of the invention is to provide a reliable, reuseable and easily assemblable combined cap-type and stopper bottle closure wherein the cap section is formed of hard plastic while the stopper section is formed of a soft, elastically deformable plastic material.
  • the attachment means comprise an inner, centrally disposed attachment ring integrally formed with the cap and optionally an annular recess in the cap interior surrounding the attachment ring.
  • the plug-type section is substantially cylindrically shaped and attaches to the cap section by the attachment ring.
  • the plug section is adapted to be inserted in the annular recess in the cap and has an inner flange 3,528,091 Patented Sept. 8., 1970 around which the attachment ring is designed to fit. After properly locating the plug section around the attachment ring the latter is upset and deformed to effect a mating attachment flange for the plug section inner flange.
  • mating flanges may further be bonded together along their common surfaces.
  • FIG. 1 is a sectional view of the hard plastic cap section of the present invention
  • FIG. 2 is a sectional view of the soft plastic stopper section of the bottle closure of this invention.
  • FIG. 3 is a sectional view of the assembled bottle cap of this invention shown mounted on a bottle opening in sealed relationship therewith.
  • the outer cap section 1 of the bottle closure is comprised of a cover 2 having a depending skirt 3 which terminates in an inner annular bead 4.
  • the cap section 1 also has integrally formed therewith a centrally disposed attachment ring 5 which depends downwardly from the inner surface of the cap 1 and an annular recess 6 surrounding the attachment ring 5.
  • the annular recess 6 is designed to accommodate the plug section 7 of the closure and to this end, its outer annular wall 9 is contoured to flare outwardly at an angle.
  • the cap section 1 is formed of hard plastic to facilitate prolonged storage of carbonated fluids without deforming. In practice it has been found that low pressure polyethylene or polypropylene have the properties of rigidity and durability that are required for the cap section of this invention.
  • the plug section 7 of the closure is formed of a soft plastic material.
  • high-pressure polyethylene such as Lupolen V (a copolymer of ethylene and vinyl acetate) has the elastically deformable characteristics necessary for the plug section 7.
  • the plug section is formed with an inner flange 10 provided with a shoulder 8 which flange 10 is designed to fit in the recess 6 of the hard plastic cap member.
  • the outer surface of the annular body 11 of plug member 7 is arcuately contoured. Specifically, the diameter of the outer surface of the plug section increases from shoulder 8 to the point of maximum diameter and then converges to the lower extremity where the diameter is the smallest.
  • This design gives the invention increased varsatility since it enables the closure to effectively seal container openings over a relatively large number of diameters since the plug itself has a number of diameters that can fit the opening of a bottle.
  • the plug section 7 is inserted in the annular recess 6 on the hard plastic closure member with the attachment ring 5 projecting through the opening in flange 10. Subsequently, the section of the attachment ring 5 which extends below the flange 10 is upset to form a flange 5a which abuts the lower surface of the flange 10.
  • the cap and plug can be permanently bonded together to form the closure member of the invention. Bonding of any of the common sides will effect connection between the cap section 1 and plug section 7, however, bonding of all the common surfaces will afford the most reliable connection. It has been found that any form of bonding, especially ultrasonic bonding, will afford a satisfactory bond. However, the bonding of the common surfaces is not essential to the invention, since adequate sealing is also obtained by merely flanging over the lower margin of the attachment ring 5 onto the lower surface of the inner flange 10 of the plug section 7.
  • the assembled closure member fits on a bottle 13 with the closure section I totally surrounding the bottle bead 12 and the inner plug member 7 conforming to the periphery of the inner diameter of the bottle opening.
  • a cap member of substantially stiff plastic having, a cover section adapted to seat directly on the rim of the container opening;
  • sealing ring of elastically deformable plastic having an inwardly extending attachment flange permanently secured between the inner surface of said cover section and said marginal flange; and an outer arcuate sealing surface on said sealing ring, said arcuate sealing surface adapted to engage the inner surface of container openings of differing size.
  • attachment flange is permanently bonded by ultrasonic welding to at least one adjacent surface of said cover section, said attachment ring and said marginal flange.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US712801A 1967-03-15 1968-03-13 Bottle cap Expired - Lifetime US3528091A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET0033443 1967-03-15

Publications (1)

Publication Number Publication Date
US3528091A true US3528091A (en) 1970-09-08

Family

ID=7557772

Family Applications (1)

Application Number Title Priority Date Filing Date
US712801A Expired - Lifetime US3528091A (en) 1967-03-15 1968-03-13 Bottle cap

Country Status (13)

Country Link
US (1) US3528091A (fr)
AT (1) AT276982B (fr)
BE (1) BE702218A (fr)
CH (1) CH463984A (fr)
DK (1) DK116843B (fr)
ES (1) ES351536A1 (fr)
FI (1) FI45645C (fr)
GB (1) GB1188315A (fr)
IE (1) IE31821B1 (fr)
LU (1) LU54086A1 (fr)
NL (1) NL6711929A (fr)
NO (1) NO121314B (fr)
SE (1) SE342423B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6868978B2 (en) * 2000-02-18 2005-03-22 Helvoet Pharma Belgium N.V. Closing cap for infusion and transfusion bottles
US20070128080A1 (en) * 2005-12-01 2007-06-07 Eppendorf Ag Lidded vessel
US20080072989A1 (en) * 2006-09-22 2008-03-27 Lepe Jose A Squeeze resistant flange cover and method of making same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19645263A1 (de) * 1996-11-02 1998-05-07 Tetra Laval Holdings & Finance Fließmittelpackung mit aseptisch dichtem Schnappdeckel und Vorformling zur Herstellung dieser Packung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331523A (en) * 1965-02-15 1967-07-18 Gilbert Mfg Company Container closure member and liner therefor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331523A (en) * 1965-02-15 1967-07-18 Gilbert Mfg Company Container closure member and liner therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6868978B2 (en) * 2000-02-18 2005-03-22 Helvoet Pharma Belgium N.V. Closing cap for infusion and transfusion bottles
US20070128080A1 (en) * 2005-12-01 2007-06-07 Eppendorf Ag Lidded vessel
US20080072989A1 (en) * 2006-09-22 2008-03-27 Lepe Jose A Squeeze resistant flange cover and method of making same

Also Published As

Publication number Publication date
LU54086A1 (fr) 1967-09-12
IE31821B1 (en) 1973-01-10
CH463984A (de) 1968-10-15
SE342423B (fr) 1972-02-07
FI45645C (fi) 1972-08-10
DK116843B (da) 1970-02-16
AT276982B (de) 1969-12-10
FI45645B (fi) 1972-05-02
NL6711929A (fr) 1968-09-16
GB1188315A (en) 1970-04-15
IE31821L (en) 1968-09-15
ES351536A1 (es) 1969-12-01
BE702218A (fr) 1968-01-15
NO121314B (fr) 1971-02-08
DE1532478A1 (de) 1972-04-06

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