US2042028A - Double shell cap for containers - Google Patents

Double shell cap for containers Download PDF

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Publication number
US2042028A
US2042028A US748093A US74809334A US2042028A US 2042028 A US2042028 A US 2042028A US 748093 A US748093 A US 748093A US 74809334 A US74809334 A US 74809334A US 2042028 A US2042028 A US 2042028A
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United States
Prior art keywords
shell
cap
containers
double shell
shell cap
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Expired - Lifetime
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US748093A
Inventor
William G Skutch
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CLOSURE SERVICE Co
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CLOSURE SERVICE Co
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 CLOSURE SERVICE Co filed Critical CLOSURE SERVICE Co
Priority to US748093A priority Critical patent/US2042028A/en
Application granted granted Critical
Publication of US2042028A publication Critical patent/US2042028A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0492—Threaded or like caps or cap-like covers secured by rotation formed by several elements connected together

Definitions

  • My invention relates to caps or closure devices for bottles, jars and the like.
  • the invention relates particularly to improvements in that type of cap which includes an inner and an outer shell nested together.
  • An object of my invention is to overcome this difiiculty by the provision of means for securely interconnecting the inner and outer shells in a manner which will positively'prevent such relative rotation or slippage.
  • Fig. 1 is a fragmentary view of a jar with a.
  • Fig. 2 is a sectional elevation of the cap.
  • Fig. 3 is a sectional elevation of the outer shell before it has been assembled with the inner shell.
  • shFig. 4 is a part sectional view of the inner ell.
  • Fig. 5 is a fragmentary sectional elevation of a modified construction, showing particularly the connection between the lower margins of the shells.
  • Fig. 6 is a sectional plan of the same, the section being taken at the line VI-VI on Fig. 5.
  • the cap and closure device Ill comprises an outer shell I2 and an inner shell l4, the latter formed with screw threads [5 for engagement 35 with corresponding threadsf formed on the neck of the container l6.
  • the outer shell I2 is preferably made of sheet metal in a single piece. It comprises a circular top cover portion I! which, as shown, is somewhat convex, and a depending annular flange or skirt 18 which in the finished cap presents a smooth exterior surface.
  • the shell [2 may be stamped from sheet metal stock and drawn by suitable dies, to the shape shown in Fig. 3. The edge of the shell is scalloped or cut to form an annular series of lobes or projections IS.
  • the inner shell It also comprises a circular top and a depending skirt.
  • the skirt is formed along its lower margin with an annular series of ribs or the like 2! projecting inwardly on the interior surface of the shell.
  • the lower scalloped margin of the outer shell is rolled inwardly to grip the margin of the inner shell.
  • the lobes l9 engage the corrugated or ribbed margin of the inner shell with said lobes positioned between the ribs 2 I. .Itwill be seen that with this construction, the lobes l9 and ribs 2! provide interlocking or holding surfaces so that the inner and outer shells are securely interengaged or locked in a manner to reliably and positively prevent relative rotation of the shells when a turning force is applied to the cap either for tightening it on thecontainer or removing it therefrom.
  • the scalloped margin l9 lies wholly within the cap and is spaced a substantial distance above the lower edge of the cap so that the latter presents a smooth finished appearance.
  • the inner shell is formed with rounded corrugations 22 whch conform closely to the contour of the scallops i9 with which they are interlocked.
  • a cap comprising an inner shell and an outer shell nested together, each shell having. a top portion and a depending skirt, the skirt of the inner shell having an intermediate portion formed with means for attaching the cap to the neck of a' container, the portion of the skirt below said attaching means being extended vertically downward with its free edge facingdownward, an annular series of curved corrugations formed on the lower marginal portion of said inner skirt and extending upward from said free edge, the margin of the outer shell being rolled inwardly around the margin of the inner shell, the free edge of the outer shell margin being scalloped to form an annular series of correspondingly curved projecting lugs, said lugs interlocking with said corrugations on the inner shell and thereby positively holding said shells against relative rotative movement.

Description

May 26, 1936. w. G. SKUTCH DOUBLE SHELL CAP FOR CONTAINERS Filed Oct. 12, 1934 IN VEN TOR.
Patented May 26, 1936 2,042,028 DOUBLE SHELL can roa commas William G. Skutch, Toledo, Ohio, assignor to The Closure Service Company, Toledo, Ohio, a corporation of Ohio Application October 12, 1934, Serial No. 748,093
1 Claim. '(Cl. 215-43) My invention relates to caps or closure devices for bottles, jars and the like. The invention relates particularly to improvements in that type of cap which includes an inner and an outer shell nested together.
Considerable difliculty has been experienced with caps of this type, owing to the tendency of the outer shell to slip or turn relative to the inner shell when the cap is being screwed onto or off the container. An object of my invention is to overcome this difiiculty by the provision of means for securely interconnecting the inner and outer shells in a manner which will positively'prevent such relative rotation or slippage.
Other objects of the invention will appear hereinafter.
Referring to the accompanying drawing:
Fig. 1 is a fragmentary view of a jar with a.
cap thereon. v
Fig. 2 is a sectional elevation of the cap.
Fig. 3 is a sectional elevation of the outer shell before it has been assembled with the inner shell. shFig. 4 is a part sectional view of the inner ell.
Fig. 5 is a fragmentary sectional elevation of a modified construction, showing particularly the connection between the lower margins of the shells.
Fig. 6 is a sectional plan of the same, the section being taken at the line VI-VI on Fig. 5.
The cap and closure device Ill comprises an outer shell I2 and an inner shell l4, the latter formed with screw threads [5 for engagement 35 with corresponding threadsf formed on the neck of the container l6.
The outer shell I2 is preferably made of sheet metal in a single piece. It comprises a circular top cover portion I! which, as shown, is somewhat convex, and a depending annular flange or skirt 18 which in the finished cap presents a smooth exterior surface. The shell [2 may be stamped from sheet metal stock and drawn by suitable dies, to the shape shown in Fig. 3. The edge of the shell is scalloped or cut to form an annular series of lobes or projections IS.
The inner shell It also comprises a circular top and a depending skirt. The skirt is formed along its lower margin with an annular series of ribs or the like 2! projecting inwardly on the interior surface of the shell.
After the shell M has been placed in position within the outer shell l2, the lower scalloped margin of the outer shell is rolled inwardly to grip the margin of the inner shell. The lobes l9 engage the corrugated or ribbed margin of the inner shell with said lobes positioned between the ribs 2 I. .Itwill be seen that with this construction, the lobes l9 and ribs 2! provide interlocking or holding surfaces so that the inner and outer shells are securely interengaged or locked in a manner to reliably and positively prevent relative rotation of the shells when a turning force is applied to the cap either for tightening it on thecontainer or removing it therefrom. In the finished cap, the scalloped margin l9 lies wholly within the cap and is spaced a substantial distance above the lower edge of the cap so that the latter presents a smooth finished appearance.
In the construction shown in Figs. 5 and 6, the inner shell is formed with rounded corrugations 22 whch conform closely to the contour of the scallops i9 with which they are interlocked.
Modifications may be resorted to within the spirit and scope of my invention.
I claim:
A cap comprising an inner shell and an outer shell nested together, each shell having. a top portion and a depending skirt, the skirt of the inner shell having an intermediate portion formed with means for attaching the cap to the neck of a' container, the portion of the skirt below said attaching means being extended vertically downward with its free edge facingdownward, an annular series of curved corrugations formed on the lower marginal portion of said inner skirt and extending upward from said free edge, the margin of the outer shell being rolled inwardly around the margin of the inner shell, the free edge of the outer shell margin being scalloped to form an annular series of correspondingly curved projecting lugs, said lugs interlocking with said corrugations on the inner shell and thereby positively holding said shells against relative rotative movement.
WILLIAM G. SKUTCH.
US748093A 1934-10-12 1934-10-12 Double shell cap for containers Expired - Lifetime US2042028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US748093A US2042028A (en) 1934-10-12 1934-10-12 Double shell cap for containers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US748093A US2042028A (en) 1934-10-12 1934-10-12 Double shell cap for containers

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US2042028A true US2042028A (en) 1936-05-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564349A (en) * 1947-03-28 1951-08-14 Thal Martha Manicuring device
US6754965B1 (en) * 2000-11-28 2004-06-29 Len C. Kretchman Integrated sandwich crimping tool
US20060186081A1 (en) * 2005-02-21 2006-08-24 Penn-Wheeling Closure, Llc Bottle cap and method therefor
US20180327147A1 (en) * 2015-11-10 2018-11-15 Tecnocap, Llc Composite closure with support brace and method for making the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564349A (en) * 1947-03-28 1951-08-14 Thal Martha Manicuring device
US6754965B1 (en) * 2000-11-28 2004-06-29 Len C. Kretchman Integrated sandwich crimping tool
US20060186081A1 (en) * 2005-02-21 2006-08-24 Penn-Wheeling Closure, Llc Bottle cap and method therefor
US20180327147A1 (en) * 2015-11-10 2018-11-15 Tecnocap, Llc Composite closure with support brace and method for making the same
US11453530B2 (en) * 2015-11-10 2022-09-27 Tecnocap, Llc Composite closure with support brace and method for making the same

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