US2813650A - Bottle closure - Google Patents

Bottle closure Download PDF

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Publication number
US2813650A
US2813650A US556661A US55666155A US2813650A US 2813650 A US2813650 A US 2813650A US 556661 A US556661 A US 556661A US 55666155 A US55666155 A US 55666155A US 2813650 A US2813650 A US 2813650A
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United States
Prior art keywords
closure
bottle
skirt
stem
bead
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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
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US556661A
Inventor
Takahashi Yonendo
Tanaka Yukichi
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Wyeth Holdings LLC
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American Cyanamid 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.)
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Publication date
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Priority to US556661A priority Critical patent/US2813650A/en
Application granted granted Critical
Publication of US2813650A publication Critical patent/US2813650A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D41/00Caps, 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
    • B65D41/02Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/16Snap-on caps or cap-like covers
    • B65D41/18Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics
    • B65D41/185Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics with integral internal sealing means

Definitions

  • This invention relates to a bottle closure and more particularly to a combination stopper and cap type closure for medicinal products.
  • a closure for a bottle which is easily opened, easily closed, moisture-proof, and particularly, proof against accidental dislodging.
  • containers will be spoken of as bottles, although they are sometimes classified as vials, or ampules, or jars.
  • the bottle is equipped with a lip and over the neck of the bottle including the lip is placed the closure.
  • Figure 1 is a partial sectional view of a bottle with the present novel closure for larger size bottles.
  • Figure 2 is a bottom view of the closure of Figure 1.
  • Figure 3 is a view of a closure for smaller size bottles.
  • Figure 4 shows the bending induced in the closure by pressure within the bottle.
  • the present closure is constructed of a moldable, synthetic resin which is flexible and firm. Particularly, polyethylene or a polyvinylchloride may be used. It is essential that the material of the closure be flexible in order that the pressures developed within the vial may cause deflection of the closure in such fashion as to more firmly retain the closure in position.
  • a bottle 11 has a neck 12 which on its upper portion has a bottle lip 13.
  • the lip has a closing cam surface 14, and a retaining cam surface 15.
  • the closing cam surface 14 is frusto-conical in general shape so that the closure slides up and over when being placed on the bottle.
  • the underside of the lip forming the retaining cam surface is also generally frusto-conical in configuration, but in an inverse direction so that the cone of the retaining cam surface 15 is pointed towards the bottom of the bottle.
  • the present closure consists of a single piece of the molded resin, which is preferably polyethylene.
  • a slightly bulged top disk 16 forms the central part of the closure and bulges upward away from the bottle.
  • a substantially cylindrical hollow inner stem 17 which has a bevel 18 on its lower portion to aid in insertion in a bottle.
  • the stem itself is either cylindrical or slightly tapered towards the lower end.
  • an annular ring 19 Surrounding the top disk and inner stem is an annular ring 19 which supports a skirt 20 which is also cylindrical in configuration and extends downward from the top surface of the closure.
  • the upper surface of the skirt has vertical corrugations 21 therein to aid in holding the closure, and to prevent the hand of the user from slipping during application or removal.
  • the outside of the skirt also has a lift tab 22 to aid in removing the closure. Slight pressure under the lift tab will start one edge of the closure sliding off, and make it easy to remove the closure.
  • Inside the skirt is an inner head 23.
  • the inner head as shown in Figure 1 may be partway up the skirt portion, and as shown in Figure 1 consist of a small bead raised on the interior surface of the cylindrical skirt. This bead is such a distance from the annular ring that when the bottle is capped the bead engages the retaining cam surface 14 on the bottle which causes the closure to be pulled downward onto the bottle. A 30 to 60 degree angle of contact gives excellent results.
  • the thickness of the parts is important. It is desirable to keep the weight of pharmaceutical containers and their closures at a minimum, and as polyethylene is a fairly expensive material it is desired to use as little of it as is consistent with a good closure. Fortunately, the closure of the present invention is one in which thin walls are not only feasible but desirable. The essence of the entire closure is in having walls which are thin enough to readily flex, and to utilize the stresses which are induced to cause the closure to become more firmly emplaced. In other words, whereas in the average closure, pressures within the bottle must be resisted, with the present closure any pressures within the bottle are actually an advantage.
  • the entire closure may be made with a top disk, and inner stem, and an outer skirt which is approximately ,4, inch thick, although the top disk and annular ring may be 50% thicker than the inner stem and skirt.
  • the inner stem is slightly larger than the interior neck of the bottle so when forced into position the stem is slightly compressed.
  • Polyethylene is sufliciently flexible that the closure may he slipped over the neck of the bottle, and the inner bead cams over the closing cam surface 14 into position, and the hoop tension induced in the skirt pulls the inner bead 23 underneath the retaining cam surface, and thereby retains the stopper in position.
  • the skirt and bead must be sufliciently flexible that they can cam over the bottle lip, and also must be of such thickness that the force required for the camming action is within the range of force conveniently excrtable by the person who removes or replaces the closure. Fortunately, with polyethylene, in a thickness of approximately & inch, all of these limitations are met, and a moisture-proof, easily replaceable, easily removable closure is provided. With softer or harder polyethylene, and various bottle sizes. the thickness will vary.
  • the inner bead rather than being placed intermediate of the skirt, is at the bottom of the skirt 25.
  • An exterior head 26 reinforces the inner bead and gives additional stiffness to the lower edge of the skirt so as to prevent tearing.
  • the closure shown in Figure 3 may be from inch to 1 inch in thickness and yet retain the desirable characteristics of easy removal and firm closure.
  • a homogeneous plastic closure of stilf resilient resin from the group consisting of polyethylene and polyvinyl chloride for a bottle comprising: a slightly bulged top disk, a hollow inner stem dependent therefrom, a bevel at the lower end of said stem, of such direction and slope as to aid in the insertion of the closure in a bottle, an
  • annular ring surrounding the top disk and inner stem, a dependent exterior skirt shorter than the inner stem; a bead interiorly of said skirt part by way up the interior face of said skirt, in such position as to cam against a closing cam surface of the bottle lip of a bottle to be closed with a 30 to 60 angle of contact; an exterior bead surrounding and integral with the lower edge of said skirt and reinforcing said skirt; vertical corrugations all the way around the dependent exterior skirt, joining the exterior bead, and extending to the top of the exterior skirt; and a lifting tab formed by an outward flaring portion of the exterior head; the top disk, the inner stem, and the corrugation reinforced skirt all being of such thickness that pressures within a closed bottle cause the more firm emplacement of the closure on the bottle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Description

1957 YONENDO TAKAHASHI ETAL ,8
BOTTLE CLOSURE Filed Dec. 50. 1955 INVENTORS. YONE/VDO TAKAHASHI,
YUK/CH/ TANA/(A M WW'MW A T TORNE X United States Patent BO'ITLE CLOSURE Yonendo Takahashi, Nakano-Ku, and Yukichi Tanaka, Toshima-Ku, Tokyo, Japan, assignors to American Cyanamitl Company, New York, N. Y., a corporation of Maine Application December 30, 1955, Serial No. 556,661
1 Claim. (Cl. 215-41) This invention relates to a bottle closure and more particularly to a combination stopper and cap type closure for medicinal products.
For many products, particularly medicinal products, it is desirable to have a closure for a bottle which is easily opened, easily closed, moisture-proof, and particularly, proof against accidental dislodging.
For purposes of convenience the containers will be spoken of as bottles, although they are sometimes classified as vials, or ampules, or jars.
A particular illustration is shown for a small bottle although it will be readily understood the side may vary with the requirements of the packaged product.
The bottle is equipped with a lip and over the neck of the bottle including the lip is placed the closure.
The particular closure of this invention can be best illustrated by reference to the accompanying drawings. These drawings show two embodiments:
Figure 1 is a partial sectional view of a bottle with the present novel closure for larger size bottles.
Figure 2 is a bottom view of the closure of Figure 1.
Figure 3 is a view of a closure for smaller size bottles.
Figure 4 shows the bending induced in the closure by pressure within the bottle.
The present closure is constructed of a moldable, synthetic resin which is flexible and firm. Particularly, polyethylene or a polyvinylchloride may be used. It is essential that the material of the closure be flexible in order that the pressures developed within the vial may cause deflection of the closure in such fashion as to more firmly retain the closure in position.
As shown in Figure 1 a bottle 11 has a neck 12 which on its upper portion has a bottle lip 13. As shown in Figure 1 the lip has a closing cam surface 14, and a retaining cam surface 15. The closing cam surface 14 is frusto-conical in general shape so that the closure slides up and over when being placed on the bottle. The underside of the lip forming the retaining cam surface is also generally frusto-conical in configuration, but in an inverse direction so that the cone of the retaining cam surface 15 is pointed towards the bottom of the bottle.
The present closure consists of a single piece of the molded resin, which is preferably polyethylene. A slightly bulged top disk 16 forms the central part of the closure and bulges upward away from the bottle. Surrounding the top disk is a substantially cylindrical hollow inner stem 17 which has a bevel 18 on its lower portion to aid in insertion in a bottle. The stem itself is either cylindrical or slightly tapered towards the lower end. Surrounding the top disk and inner stem is an annular ring 19 which supports a skirt 20 which is also cylindrical in configuration and extends downward from the top surface of the closure. In the configuration shown in Figures 1 and 2 the upper surface of the skirt has vertical corrugations 21 therein to aid in holding the closure, and to prevent the hand of the user from slipping during application or removal. The outside of the skirt also has a lift tab 22 to aid in removing the closure. Slight pressure under the lift tab will start one edge of the closure sliding off, and make it easy to remove the closure. Inside the skirt is an inner head 23. The inner head as shown in Figure 1 may be partway up the skirt portion, and as shown in Figure 1 consist of a small bead raised on the interior surface of the cylindrical skirt. This bead is such a distance from the annular ring that when the bottle is capped the bead engages the retaining cam surface 14 on the bottle which causes the closure to be pulled downward onto the bottle. A 30 to 60 degree angle of contact gives excellent results. Preferably there is a small bead 27 on the exterior face of the closure at the bottom to give added stifiness, and avoid tearing or rupture.
The thickness of the parts is important. It is desirable to keep the weight of pharmaceutical containers and their closures at a minimum, and as polyethylene is a fairly expensive material it is desired to use as little of it as is consistent with a good closure. Fortunately, the closure of the present invention is one in which thin walls are not only feasible but desirable. The essence of the entire closure is in having walls which are thin enough to readily flex, and to utilize the stresses which are induced to cause the closure to become more firmly emplaced. In other words, whereas in the average closure, pressures within the bottle must be resisted, with the present closure any pressures within the bottle are actually an advantage. For example, on a closure on a bottle which is approximately 1 inches high, and inch in diameter, the entire closure may be made with a top disk, and inner stem, and an outer skirt which is approximately ,4, inch thick, although the top disk and annular ring may be 50% thicker than the inner stem and skirt. The inner stem is slightly larger than the interior neck of the bottle so when forced into position the stem is slightly compressed. This has two functions (1) the friction between the stem and the bottle is greater because of the compression, and any pressures Within the bottle will tend to force the stem out against the neck of the bottle thereby retaining it in position; (2) additionally, as the stem is compressed it causes the slightly bulged top disk to bulge further which increases the pressure on the stem, and causes the top disk as it flexes to cause a reverse flexure to the annular ring which in turn tends to contact the skirt, and causes the inner bead to contract inwardly, and bear more firmly on the neck on the bottle. As shown in Figure 4, the internal pressure acts at A to cause the stem to frictionally engage the inside neck of the bottle, and also pressure at B causes the annular disk to rotate outwardly as shown at C which causes the bead to press more firmly against the closing cam surface 14.
Polyethylene is sufliciently flexible that the closure may he slipped over the neck of the bottle, and the inner bead cams over the closing cam surface 14 into position, and the hoop tension induced in the skirt pulls the inner bead 23 underneath the retaining cam surface, and thereby retains the stopper in position. Obviously, the skirt and bead must be sufliciently flexible that they can cam over the bottle lip, and also must be of such thickness that the force required for the camming action is within the range of force conveniently excrtable by the person who removes or replaces the closure. Fortunately, with polyethylene, in a thickness of approximately & inch, all of these limitations are met, and a moisture-proof, easily replaceable, easily removable closure is provided. With softer or harder polyethylene, and various bottle sizes. the thickness will vary.
In the modification shown in Figure 3 which is designed particularly for smaller bottles, the inner bead rather than being placed intermediate of the skirt, is at the bottom of the skirt 25. An exterior head 26 reinforces the inner bead and gives additional stiffness to the lower edge of the skirt so as to prevent tearing. The closure shown in Figure 3 may be from inch to 1 inch in thickness and yet retain the desirable characteristics of easy removal and firm closure.
The forces within the bottle are used to retain the closure. In many instances the actual emplacement of a closure traps air and causes a build-up in pressure, and in other cases gas is given off from the contents, or expansion caused by warming the bottle and its contents builds up a pressure within the bottle. As above described these pressurcs actually do more to retain the closure in position than to remove it, and it is actually at least as difficult or even more difficult to remove the closure from the bottle when there is a pressure therein, than when the pressure is approximately the same as external pressure. This is a new development in closures which thus permits the use of lighter materials and more economical cross-sections.
We claim:
A homogeneous plastic closure of stilf resilient resin from the group consisting of polyethylene and polyvinyl chloride for a bottle comprising: a slightly bulged top disk, a hollow inner stem dependent therefrom, a bevel at the lower end of said stem, of such direction and slope as to aid in the insertion of the closure in a bottle, an
annular ring surrounding the top disk and inner stem, a dependent exterior skirt shorter than the inner stem; a bead interiorly of said skirt part by way up the interior face of said skirt, in such position as to cam against a closing cam surface of the bottle lip of a bottle to be closed with a 30 to 60 angle of contact; an exterior bead surrounding and integral with the lower edge of said skirt and reinforcing said skirt; vertical corrugations all the way around the dependent exterior skirt, joining the exterior bead, and extending to the top of the exterior skirt; and a lifting tab formed by an outward flaring portion of the exterior head; the top disk, the inner stem, and the corrugation reinforced skirt all being of such thickness that pressures within a closed bottle cause the more firm emplacement of the closure on the bottle.
References Cited in the file of this patent UNITED STATES PATENTS 20 2,586,775 Benner et al. Feb. 26, 1952 FOREIGN PATENTS 278,533 Switzerland Jan. 16, 1952 1,013,553 France Apr. 30, 1952 1,030,600 France Mar. 18. 1953
US556661A 1955-12-30 1955-12-30 Bottle closure Expired - Lifetime US2813650A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935108A (en) * 1958-09-12 1960-05-03 Hall Hugh Container
US2990076A (en) * 1958-04-11 1961-06-27 Morton B Stull Closure cap and container neck construction
US2991902A (en) * 1956-11-27 1961-07-11 Lind Evald Torbjorn Gustav Sealing devices
US3025988A (en) * 1959-07-20 1962-03-20 Owens Illinois Glass Co Non-removable closure
US3032226A (en) * 1960-12-23 1962-05-01 Floyd A Terwilliger Container closure
US4892126A (en) * 1982-03-01 1990-01-09 Henkel Kommanditgesellschaft Auf Aktien Threaded dosing cap
US5392939A (en) * 1992-10-01 1995-02-28 Hidding; Walter E. Valved bottle cap
US20030203800A1 (en) * 2002-04-26 2003-10-30 Hitachi Koki Co., Ltd. Culture tube and angle rotor receiving the tube in centrifuge
EP2133281A1 (en) * 2008-06-13 2009-12-16 Omega S.R.L. Snap-fit container-cap assembly for fluids
USD831489S1 (en) * 2016-12-12 2018-10-23 OnMyWhey, LLC Bottle
USD844435S1 (en) * 2016-12-12 2019-04-02 OnMyWhey, LLC Bottle
USD844436S1 (en) * 2016-12-12 2019-04-02 OnMyWhey, LLC Bottle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH278533A (en) * 1949-12-24 1951-10-31 Hoechli Josef H Dr Jur Bottle cap.
US2586775A (en) * 1947-06-10 1952-02-26 Armstrong Cork Co Plastic container closure
FR1013553A (en) * 1950-01-13 1952-07-30 Improvements to closure caps for containers
FR1030600A (en) * 1949-08-04 1953-06-15 Closure for containers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2586775A (en) * 1947-06-10 1952-02-26 Armstrong Cork Co Plastic container closure
FR1030600A (en) * 1949-08-04 1953-06-15 Closure for containers
CH278533A (en) * 1949-12-24 1951-10-31 Hoechli Josef H Dr Jur Bottle cap.
FR1013553A (en) * 1950-01-13 1952-07-30 Improvements to closure caps for containers

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991902A (en) * 1956-11-27 1961-07-11 Lind Evald Torbjorn Gustav Sealing devices
US2990076A (en) * 1958-04-11 1961-06-27 Morton B Stull Closure cap and container neck construction
US2935108A (en) * 1958-09-12 1960-05-03 Hall Hugh Container
US3025988A (en) * 1959-07-20 1962-03-20 Owens Illinois Glass Co Non-removable closure
US3032226A (en) * 1960-12-23 1962-05-01 Floyd A Terwilliger Container closure
US4892126A (en) * 1982-03-01 1990-01-09 Henkel Kommanditgesellschaft Auf Aktien Threaded dosing cap
EP0101695B2 (en) 1982-03-01 1991-10-02 Henkel Kommanditgesellschaft auf Aktien Dosing screw and cover closure
US5392939A (en) * 1992-10-01 1995-02-28 Hidding; Walter E. Valved bottle cap
US20030203800A1 (en) * 2002-04-26 2003-10-30 Hitachi Koki Co., Ltd. Culture tube and angle rotor receiving the tube in centrifuge
US7214177B2 (en) * 2002-04-26 2007-05-08 Hitachi Koki Co., Ltd. Culture tube and angle rotor receiving the tube in centrifuge
EP2133281A1 (en) * 2008-06-13 2009-12-16 Omega S.R.L. Snap-fit container-cap assembly for fluids
USD831489S1 (en) * 2016-12-12 2018-10-23 OnMyWhey, LLC Bottle
USD832106S1 (en) * 2016-12-12 2018-10-30 OnMyWhey, LLC Bottle
USD844435S1 (en) * 2016-12-12 2019-04-02 OnMyWhey, LLC Bottle
USD844436S1 (en) * 2016-12-12 2019-04-02 OnMyWhey, LLC Bottle
USD859985S1 (en) 2016-12-12 2019-09-17 OnMyWhey, LLC Bottle
USD865527S1 (en) * 2016-12-12 2019-11-05 OnMyWhey, LLC Bottle
USD959987S1 (en) * 2016-12-12 2022-08-09 OnMyWhey, LLC Bottle
USD1021628S1 (en) 2016-12-12 2024-04-09 OnMyWhey, LLC Bottle
USD1027650S1 (en) 2016-12-12 2024-05-21 OnMyWhey, LLC Bottle

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