US3800971A - Push button lid for beverage cans and the like - Google Patents

Push button lid for beverage cans and the like Download PDF

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Publication number
US3800971A
US3800971A US00377802A US3800971DA US3800971A US 3800971 A US3800971 A US 3800971A US 00377802 A US00377802 A US 00377802A US 3800971D A US3800971D A US 3800971DA US 3800971 A US3800971 A US 3800971A
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US
United States
Prior art keywords
plug
opening
set forth
combination set
lid
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Expired - Lifetime
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US00377802A
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English (en)
Inventor
Vista E La
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VISTA E
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VISTA E
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Filing date
Publication date
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Publication of US3800971A publication Critical patent/US3800971A/en
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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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/506—Rigid or semi-rigid members, e.g. plugs

Definitions

  • a lid for beverage cans and the like is provided with a circular opening, the opening being formed so as to have an inwardly extending tapered peripheral wall, the innermost edge of which may be flared laterally to form a skirt. The diameter of the opening is less at the outermost than at the innermost edge of the wall.
  • similarly tapered plug is fitted tightly, from inward to outward in this opening, and may have an enlarged skirt portion which engages the skirt of the opening in a sealing relationship.
  • the plug therefore, has a maxi mum diameter which is greater than the diameter of the opening.
  • the outer part of the plug has a raised table portion along part of its circumference to create leverage when the plug is dislodged by pushing inwardly on the table portion.
  • the present invention has as its principal object to provide an improved type of can lid which can be easily opened without any extra tools yet which will not have the foregoing objectionable features. More particularly, the object of the present invention is to provide a beverage can lid which can be opened easily but when opened will not leave any portion thereof which can be discarded, the beverage can retaining the portion of the lid which is dislodged. It is also an object and advantage of the present invention that it provides an improved beverage can lid which can be readily opened by pushing thereon with a finger, yet which is so constructed that the potential for injury to the finger or the lips of the user drinking therefrom is substantially eliminated.
  • a beverage can lid which has a single circular opening located near one edge of the lid the opening being provided with a tapered inwardly projecting annular wall, whereby the outermost diameter of the opening is smaller than the innermost diameter.
  • the wall further projects laterally to provide a skirt portion thereon.
  • a tapered plug is provided which is fitted tightly into the tapered opening in the lid. The plug wall conforms to the configuration of the opening in a tight fitting and sealing relationship.
  • the wall of the plug is also provided with a skirt portion which engages the skirt portion of the wall of the opening for an additional tight fitting and sealing relationship.
  • a raised table is formed along part of the circumference of the outer part of the plug so that it may be pressed by a finger to open the can. This forces down one part of the edge of the plug, thereby breaking the seal gradually rather than the plug breaking away suddenly, which might cause the pressurized fluid to squirt out.
  • the edge of the lid opening prevents the finger from plungin conjunction with the accompanying drawings.
  • FIG. 1 is a plan view of a beverage can lid made in accordance with the present invention with the plug in place.
  • FIG. 2 is a similar plan view of the beverage can lid with the plug removed.
  • FIG. 3 is a sectional elevation taken along line 3-3 DESCRIPTION OF THE PREFERRED EMBODIMENT
  • a beverage can lid designated generally by the numeral 10 is conventionally provided with a peripheral rim 1], surrounding a central portion 12 which is slightly convex in shape. Between central portion 12 and the rim 11 is formed a peripheral trough 13. Typically, the rim 11 is crimped over the top edge of a can 14 to seal the same after the can has been filled with fluid 15.
  • the central portion 12 is provided with a circular opening 16 the diameter of which is substantially less than the diameter of the lid 10, and preferably less than half the diameter thereof.
  • the opening 16 is located near the edge of the lid and is of sufficient diameter that when opened will provide a large enough opening so. that fluid may be conveniently poured or drunk therefrom, and which is also large enough so that when a person is drinking from the opening 16 there will be room enough to permit air to enter the can, so as to make possible the smooth flow of the liquid from the can.
  • Opening 16 may be punched and rolled or otherwise formed by conventional means such that about the upper periphery ofthe opening a raised rim 17 may be provided extending all the way around the opening 16.
  • the rim or bead 17 is arcuate in cross section, as can be seen in FIGS. 3 and 4.
  • a laterally tapering annular wall 18 is linear in cross section thereby providing a tapered hole configuration.
  • the material is further flared laterally to provide a skirt portion 19.
  • a plug generally designated 20, is provided having a circular outer portion 21 and a depending sidewall 22, the inner side of the plug being open.
  • the sidewall 22 depends at first at right angles away from the outer portion 21 and is then flared slightly laterally to provide a laterally tapered sidewall 23 conforming to the configuration of wall 18 of the 3 opening, including being substantially linear in cross section.
  • the inner portion of the sidewall 22 is flared laterally to provide a skirt portion 24 which'conforms to skirt portion 19 of the opening 16.
  • the circular outer portion 21 of plug is provided with a raised table as a segment of the circumference thereof.
  • the purpose of this table 25 may be best learned from viewing FIG. 3.
  • the finger shown in phantom lines in FIG. 3 pushes inwardly on the table 25 creating a lever-type action on the plug, tending to cause one portion of the edge of the plug to break the seal established between the wall of the plug and the wall of the opening so that pressure is gradually released from the interior of the can and the can is thereby easily opened.
  • the arcuate configuration of the rim 17 surrounding opening 16 provides further resilience to the size of the opening assuring that the opening will sealingly receive the plug therein even if it may be formed slightly oversize.
  • the engagement of the skirt portions 19 and 24 under the influence of the pressure inside the can will further seal the opening.
  • a non-toxic resilient gasket material can be used upon one of the mating surfaces of the skirts to insure a sealing relationship.
  • the plug 20 Since the plug 20 has an outside diameter which is greater than the diameter of opening 16, it can never come out of the can. Because the specific gravity of the plug 20 is greater than that of the liquid, it will tend to sink to the bottom of the can.
  • a can lid of the type having a central portion with 4 a peripheral rim, the combination comprising: i a circular opening in said central portion, said opening having a depending annular wall, said wall being tapered such that the diameter of said opening is smaller at the outermost side of said lid than at the innermost side thereof; and
  • a plug removably situated in said opening, said plug having an outer portion and a depending annular sidewall, said sidewall being tapered in substantially the same configuration as the annular wall of said opening.
  • said plug further includes a laterally flared skirt formed along the inner edge of said sidewall.
  • a rim formed about the upper periphery of said opening, said rim being formed integrally with the central portion of said lid and with the depending wall thereof, said rim being arcuate in cross section.
  • skirt portion formed about the inner periphery of the annular sidewall of said plug, the aforesaid skirt portions being contiguous and having mutually conforming mating surfaces.
  • a table formed on the outer portion of said plug, said table extending above the surface of the outer portion of said plug, said table comprising a segment of the circumference of the outer portion of said plug.
  • a table formed on the outer portion of said plug, said table extending above the surface of the outer portion of said plug, said table comprising a segment of the circumference of the outer portion of said plug.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
US00377802A 1973-07-09 1973-07-09 Push button lid for beverage cans and the like Expired - Lifetime US3800971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37780273A 1973-07-09 1973-07-09

Publications (1)

Publication Number Publication Date
US3800971A true US3800971A (en) 1974-04-02

Family

ID=23490567

Family Applications (1)

Application Number Title Priority Date Filing Date
US00377802A Expired - Lifetime US3800971A (en) 1973-07-09 1973-07-09 Push button lid for beverage cans and the like

Country Status (9)

Country Link
US (1) US3800971A (de)
JP (1) JPS573534B2 (de)
CA (1) CA958994A (de)
DE (1) DE2432733C3 (de)
DK (1) DK138938B (de)
FR (1) FR2351873A1 (de)
GB (1) GB1436683A (de)
IT (1) IT1016339B (de)
SE (1) SE375740B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910453A (en) * 1974-10-10 1975-10-07 Crown Cork & Seal Co Easy opening can end with push-in tabs
US4024980A (en) * 1974-11-08 1977-05-24 Crown Cork & Seal Company, Inc. Easy opening can end having a closure plug
US4034888A (en) * 1974-12-17 1977-07-12 Strauss Hubert M Can for containing beverages
US4078695A (en) * 1975-07-16 1978-03-14 Crown Cork & Seal Company, Inc. Easy-opening can end and method of opening
US4136797A (en) * 1976-11-15 1979-01-30 Crown Cork & Seal Company, Inc. Easy-opening can end and method of opening
US4157764A (en) * 1978-08-01 1979-06-12 The Continental Group, Inc. Easy open beverage can--non-detach

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6151332U (de) * 1984-09-11 1986-04-07

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1190043A (en) * 1915-05-21 1916-07-04 Randal James Alcock Means for locking cans.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1190043A (en) * 1915-05-21 1916-07-04 Randal James Alcock Means for locking cans.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910453A (en) * 1974-10-10 1975-10-07 Crown Cork & Seal Co Easy opening can end with push-in tabs
US4024980A (en) * 1974-11-08 1977-05-24 Crown Cork & Seal Company, Inc. Easy opening can end having a closure plug
US4034888A (en) * 1974-12-17 1977-07-12 Strauss Hubert M Can for containing beverages
US4078695A (en) * 1975-07-16 1978-03-14 Crown Cork & Seal Company, Inc. Easy-opening can end and method of opening
US4136797A (en) * 1976-11-15 1979-01-30 Crown Cork & Seal Company, Inc. Easy-opening can end and method of opening
US4157764A (en) * 1978-08-01 1979-06-12 The Continental Group, Inc. Easy open beverage can--non-detach

Also Published As

Publication number Publication date
FR2351873B1 (de) 1980-05-09
FR2351873A1 (fr) 1977-12-16
IT1016339B (it) 1977-05-30
DE2432733A1 (de) 1975-01-30
SE7408118L (de) 1975-01-10
DE2432733C3 (de) 1979-07-12
AU7097974A (en) 1976-01-08
DK138938C (de) 1979-04-17
JPS573534B2 (de) 1982-01-21
DK138938B (da) 1978-11-20
DK333474A (de) 1975-03-03
DE2432733B2 (de) 1978-11-09
GB1436683A (en) 1976-05-19
SE375740B (de) 1975-04-28
CA958994A (en) 1974-12-10
JPS5037586A (de) 1975-04-08

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