US2787394A - Closure - Google Patents

Closure Download PDF

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Publication number
US2787394A
US2787394A US405308A US40530854A US2787394A US 2787394 A US2787394 A US 2787394A US 405308 A US405308 A US 405308A US 40530854 A US40530854 A US 40530854A US 2787394 A US2787394 A US 2787394A
Authority
US
United States
Prior art keywords
disc
cap
top wall
closure
container
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
US405308A
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English (en)
Inventor
Karl E Baumann
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.)
Baxter International Inc
Original Assignee
Baxter Laboratories Inc
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 Baxter Laboratories Inc filed Critical Baxter Laboratories Inc
Priority to US405308A priority Critical patent/US2787394A/en
Priority to FR1113290D priority patent/FR1113290A/fr
Priority to BE530766D priority patent/BE530766A/xx
Application granted granted Critical
Publication of US2787394A publication Critical patent/US2787394A/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
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/40—Caps or cap-like covers adapted to be secured in position by permanent deformation of the wall-engaging parts
    • B65D41/42—Caps or cap-like covers adapted to be secured in position by permanent deformation of the wall-engaging parts made of relatively-stiff metallic material, e.g. crown caps

Definitions

  • This invention relates to a closure, and more particularly to a closure adapted to be employed with solutions or ⁇ other liquid products.
  • the invention is particularly useful in connection with a liquid container of the type shown in Campbell Patent No. 2,236,491.
  • an inner cap or metal sleeve which is secured to the neck of a bottle and which engages a ilexible sealing disc on the top of the apertured rubber plug in the neck of the bottle.
  • a second or outer cap of met-al is then ⁇ employed to enclose the inner cap, the disc, and a metal disc which is placed over the resilient disc.
  • the structure of the patent is excellent, and the same has been used commercially for many years on a wide scale.
  • the structure involves the use of two metal caps and a metal disc, and requires the placing of these multiple parts in position in the assembly operation.
  • An object ⁇ of the present invention is to provide a single cap having the above advantages and resulting in the saving ⁇ of material and labor. Another object is to provide a single closure or cap structure and a container in which the closure is formed from a single strip of metal while at the same time providing all of the advantages of the multipiece structure heretofore employed. A still further object is to provide a means and a method for closing a container through the employment of a single strip ⁇ of material while providing simple integral means for opening a portion of the closure to expose the closure area therebelow and retaining the rubber plug or other sealing structure firmly within the container.
  • FIG. l is a perspective view of a closure or cap embodying my invention and shown applied to the top of a container;
  • FIG. 2 a perspective View of the cap showing an initial step in the cap-forming operation;
  • Fig. 3 an enlarged sectional View of the structure shown in Fig. 2;
  • Fig. 4 a view similar to Fig. 2 but showing a second step in the operation in whi-ch the central portion of the cap is partially severed;
  • Fig. 5 an enlarged sectional view of the structure shown in Fig. 4;
  • Fig. 6, a perspective view of a cap ⁇ showing a third operation in the process of forming the cap shown in Fig. 1;
  • Fig. 6 a perspective view of a cap ⁇ showing a third operation in the process of forming the cap shown in Fig. 1;
  • Fig. 6 a perspective view of a cap ⁇ showing a third operation in the process of forming the cap shown in Fig. 1;
  • FIG. 7 an enlarged sectional view of the structure shown in Fig. 6; Fig. 8, a perspective View showing a iinal step taken in the forming of the cap; Fig. 9, an enlarged sectional view of the structure Patented Apr. 2, 1957 shown in Fig. 8; Fig. 10, a top plan view of the completed cap or closure; and Fig. 11, a view similar to Fig. 6 but showing a modified preferred form of the invention.
  • 10 designates ya closure or cap adapted to rest upon and to be crimped about a bead carried by a container 11.
  • the container 11 may be of the type shown in said Campbell Patent 2,236,491, and the cap 10 is adapted t-o be seated upon, and the lower portion thereof sealed about, a retaining bead on the container.
  • the cap 10 may be -formed in any suitable shape and of any desired dimensions.
  • the cap is provided with an upper cylindrical portion 12 and with an enlarged skirt portion 13 thereb-elow.
  • the top wall 14 ⁇ of the 4cap is initially a horizontal integral wall, and it is desired to form from this wall a disc portion which will have parts thereof extending below the plane of the top wa'll 14, while at the same time being releasable therefrom when it is desired to expose the top of the rubber plug or other closure in the container below the cap.
  • I will now describe the operations which may be employed in forming from the single horizontal top wall 14, the closure disc referred to.
  • the top wall 14 is subjected to a pressing operation which ⁇ stretches the metal and Iforms the concentric circular waves 15 and depres sions or grooves 16.
  • the convolutions shown may be formed by drawing, pressing, Ior any suitable means, and that the shape of the raised and depressed portions may be modified widely as desired.
  • a primary object is to provide an expansion of the metal in this central area so that in a subsequent pressing operation excess -metal will be provided for insertion below the peripheral portion of the top wall 14.
  • the third step is a stamping or flattening step, in which the central disc polt-ion of the top wall 14 is subjected to pressure so as to Hatten the peripheral portion 18 of the central disc 19, leaving only the center of the disc'provided with the waves 15 or depressions 16. In'attening the peripheral portion of the disc 19, it will be obvious that an expansion of the metal laterally occurs. I-n the tlattening or expanding operation, the expanded edge 20 is brought below the horizontal peripheral portion of the top wall 14, as shown in Fig. 7, so as to lock the partially severed disc 19 thus below lthe peripheral ilange 14.
  • I form another slit along the line 22, as shown more clearly in Fig. l0.
  • the slit 22 forms in the disc 19 a ta'b 23, which furnishes a handle in the removal of the disc 19.
  • the tab 23 is shown in raised position by dotted lines in ⁇ Fig. 9.
  • the one-piece cap is formed by rst stretching the central portion of the top wall 14 of the cap by forming convolutions yor waves 15, severing a central portion of the top wall -along line 17 to form a disc, then ilattening atleast the peripheral portion of the disc 19 to extend the edges thereof below the overlying peripheral portion of the top wall 14, thus forming the interlock illustrated in Figs. 7 and 9. Simultaneously with the last operation, I
  • the tear ⁇ slits 21 are formed and also, if desired, in the same ⁇ or a subsequent operation, there may be formed the slit 21 which exposes the pull-tab 23.
  • the cap 10 formed as above described may then be inserted upon the container 11 and secu-red in position thereon by the usual crimping machine which interlocks a portion of the cap ange with a bead on the bottle or container. If desired, some of the operations above described may be performed after the cap has been secured upon the container. I prefer, however, to form the finished cap as shown best in Figs. 1 and 10 prior to the nal capping operation in which the cap is secured upon the container.
  • the user may grasp the' tab 23, pulling it upwardly, as illustrated in Fig. 9, so as to draw the disc 19 inwardly and release it from the overlying ilange provided by the top wall portion 14.
  • the entire disc 19 may then be drawn toward the slits 21.
  • the metal tends to form a V-shaped notch which comes to a point near the edge of the top wall 14 and the entire disc 19 and the strip segment attached thereto may be removed.
  • the 4disc 19 is formed in the same manner ⁇ as disc 19 described above.
  • the slit 24 extends in the opposite direction from the slit 22, Aand the resulting tab 2S, when drawn, will tend to bend toward the tear slits 21.
  • the drawing operation may continue in a single line toward the tear slits 21, this action serving to disengage the disc 19a simultaneously with the tearing Iof the strip toward the border of the top wall 14.
  • the central reinforcing or convolutions of the disc 19 or 19a provide a reinforcement tending to render the central p0rtion more rigid and less likely to ex Iand thus facilitating the exing of the disc along its peripheral edges during disengagement of the ydisc edges from the edges of the peripheral top wall portion 14. Further, the reinforcing provided by the central convolutions renders the pull-tab 23 or 25 itself more rigid and thus more effective in the removal of the disc.
  • a unitary cap structure having a cylindrical side wall and a top wall, said top Wall being severed partially to provide a central disc having expanded peripheral por-l tions underlying said top wall, said disc having a central portion parti-ally severed to provide a tab which normally lies in the plane yof said disc, but which may be drawn upwardly to provide a pull-tab for drawing said disc free of the top wall of said cap, and which upon being drawn further upwardly causes the said central disc to become detached from said cap structure without severing entirely said side wall.
  • top wall is slitted about said central disc, with the slits thereof spaced apart at one end and leading toward the periphery of said top wall.
  • a closure cap comprising a cylindrical body having a top wall, a U-shaped disc portion stmck from said top wall, said disc portion having expanded peripheral edge portions extending under the edge portion of said top wall, a U-shaped pull-tab portion struck from the central portion of said disc portion whereby said pull-tab is adapted to be drawn upwardly to delete said disc portion from said cap without severing entirely the said side wall permitting said cap to remain rmly attached to a container to maintain a plug in the neck of the container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US405308A 1954-01-21 1954-01-21 Closure Expired - Lifetime US2787394A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US405308A US2787394A (en) 1954-01-21 1954-01-21 Closure
FR1113290D FR1113290A (fr) 1954-01-21 1954-06-18 Capsule de fermeture
BE530766D BE530766A (enExample) 1954-01-21 1954-07-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US405308A US2787394A (en) 1954-01-21 1954-01-21 Closure

Publications (1)

Publication Number Publication Date
US2787394A true US2787394A (en) 1957-04-02

Family

ID=23603134

Family Applications (1)

Application Number Title Priority Date Filing Date
US405308A Expired - Lifetime US2787394A (en) 1954-01-21 1954-01-21 Closure

Country Status (3)

Country Link
US (1) US2787394A (enExample)
BE (1) BE530766A (enExample)
FR (1) FR1113290A (enExample)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3182852A (en) * 1962-03-27 1965-05-11 American Can Co Container with pull tab
US3195756A (en) * 1964-11-18 1965-07-20 Crown Cork & Seal Co Pull crown cap
US3246791A (en) * 1963-08-12 1966-04-19 Charles T Asbury Can-opening arrangement
US3759206A (en) * 1970-09-16 1973-09-18 Broken Hill Pty Co Ltd Push-in easy-opening closures
US3760752A (en) * 1972-01-07 1973-09-25 J Geiger Easy-opening device for sheet metal containers and the like and method of producing such devices
US3886881A (en) * 1973-12-03 1975-06-03 Coors Container Co Method of making a press tab container end from a metallic shell
US3931909A (en) * 1970-09-16 1976-01-13 The Broken Hill Proprietary Company, Ltd. Push-in easy-opening closures
USRE28910E (en) * 1970-09-16 1976-07-20 The Broken Hill Proprietary Company Limited Push-in easy-opening closures
US5531363A (en) * 1994-06-10 1996-07-02 Aptargroup, Inc. Dispensing closure cartridge valve system
US6655553B2 (en) 2000-10-25 2003-12-02 Seaquist Closures Foreign, Inc. Dispensing closure with tamper-evident sleeve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630405A (en) * 1968-06-08 1971-12-28 Armando Podesta Device for ripping off metal crown caps

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US715917A (en) * 1902-04-17 1902-12-16 Morris F Whiton Outlet or junction box.
US1075125A (en) * 1912-05-10 1913-10-07 Pure Food Process Company Jar-cap.
US1170152A (en) * 1912-05-10 1916-02-01 Heath Self Opening Stopper Company Closure-cap and the like.
US1472093A (en) * 1921-06-08 1923-10-30 Aluminum Seal Company Bottle closure
US2030884A (en) * 1934-06-07 1936-02-18 Mason Bottle cap and process of making same
GB494283A (en) * 1933-10-20 1938-10-24 Franz Haggenmiller Improvements relating to closures or seals for bottles and like receptacles
US2162182A (en) * 1938-09-13 1939-06-13 Willard B Smith Bottle cap or closure
US2261117A (en) * 1939-06-09 1941-11-04 Us Can Corp Closure member and method of preparing same
US2324155A (en) * 1943-01-16 1943-07-13 Haynes Robert Earl Outlet box
US2387955A (en) * 1942-01-08 1945-10-30 Aluminum Co Of America Tamperproof closure

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US715917A (en) * 1902-04-17 1902-12-16 Morris F Whiton Outlet or junction box.
US1075125A (en) * 1912-05-10 1913-10-07 Pure Food Process Company Jar-cap.
US1170152A (en) * 1912-05-10 1916-02-01 Heath Self Opening Stopper Company Closure-cap and the like.
US1472093A (en) * 1921-06-08 1923-10-30 Aluminum Seal Company Bottle closure
GB494283A (en) * 1933-10-20 1938-10-24 Franz Haggenmiller Improvements relating to closures or seals for bottles and like receptacles
US2030884A (en) * 1934-06-07 1936-02-18 Mason Bottle cap and process of making same
US2162182A (en) * 1938-09-13 1939-06-13 Willard B Smith Bottle cap or closure
US2261117A (en) * 1939-06-09 1941-11-04 Us Can Corp Closure member and method of preparing same
US2387955A (en) * 1942-01-08 1945-10-30 Aluminum Co Of America Tamperproof closure
US2324155A (en) * 1943-01-16 1943-07-13 Haynes Robert Earl Outlet box

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3182852A (en) * 1962-03-27 1965-05-11 American Can Co Container with pull tab
US3246791A (en) * 1963-08-12 1966-04-19 Charles T Asbury Can-opening arrangement
US3195756A (en) * 1964-11-18 1965-07-20 Crown Cork & Seal Co Pull crown cap
US3759206A (en) * 1970-09-16 1973-09-18 Broken Hill Pty Co Ltd Push-in easy-opening closures
US3931909A (en) * 1970-09-16 1976-01-13 The Broken Hill Proprietary Company, Ltd. Push-in easy-opening closures
USRE28910E (en) * 1970-09-16 1976-07-20 The Broken Hill Proprietary Company Limited Push-in easy-opening closures
US3760752A (en) * 1972-01-07 1973-09-25 J Geiger Easy-opening device for sheet metal containers and the like and method of producing such devices
US3886881A (en) * 1973-12-03 1975-06-03 Coors Container Co Method of making a press tab container end from a metallic shell
US5531363A (en) * 1994-06-10 1996-07-02 Aptargroup, Inc. Dispensing closure cartridge valve system
US6655553B2 (en) 2000-10-25 2003-12-02 Seaquist Closures Foreign, Inc. Dispensing closure with tamper-evident sleeve

Also Published As

Publication number Publication date
BE530766A (enExample) 1957-10-11
FR1113290A (fr) 1956-03-26

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