US3710971A - Safety cap for vials - Google Patents

Safety cap for vials Download PDF

Info

Publication number
US3710971A
US3710971A US00196366A US3710971DA US3710971A US 3710971 A US3710971 A US 3710971A US 00196366 A US00196366 A US 00196366A US 3710971D A US3710971D A US 3710971DA US 3710971 A US3710971 A US 3710971A
Authority
US
United States
Prior art keywords
cap
gap
ramp
container
combination defined
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
US00196366A
Inventor
K Jones
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.)
JONES BOX AND LABEL CO Ltd
Original Assignee
JONES BOX AND LABEL CO Ltd
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 JONES BOX AND LABEL CO Ltd filed Critical JONES BOX AND LABEL CO Ltd
Application granted granted Critical
Publication of US3710971A publication Critical patent/US3710971A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65D50/00—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures
    • B65D50/02—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions
    • B65D50/06—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of different actions in succession
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/0212—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the outside, or a part turned to the outside, of the mouth
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00296—Plastic
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00518—Skirt
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00555—Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00611—Profiles
    • B65D2543/00629—Massive bead
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00675—Periphery concerned
    • B65D2543/00685—Totality
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00722—Profiles
    • B65D2543/0074—Massive bead
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00787—Periphery concerned
    • B65D2543/00805—Segments
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00824—Means for facilitating removing of the closure
    • B65D2543/00833—Integral tabs, tongues, handles or similar
    • B65D2543/00842—Integral tabs, tongues, handles or similar outside of the lid

Definitions

  • the flange has a gap, extending over an arc of roughly 10, and is provided immediately below that gap with an external ramp coacting with a similar internal ramp on the shoulder of the cap when the latter is rotated into a predetermined angular position relative to the vial. In that position, the portion of the rim confronting the gap is cammed outwardly by the coacting ramps and may be lifted to disengage the cap from the vial whose gap clears the ramp of the cap rim. Complementary indexing formations on the two ramps may snap into engagement in the uncapping position to indicate the correct alignment of the internal ramp with the gap.
  • Such caps generally have a depending wall portion forming a circular rim which embraces the neck-forming wall portion of the container. If the ring of the cap consists of resilently deformable material (e.g., polyethylene) it can be slightly distended in the closing operation so that an inner annular shoulder at the lower edge of the rim engages under an outer annular bead surrounding the container mouth, thereby locking the cap in position.
  • resilently deformable material e.g., polyethylene
  • the general object of my present invention is to provide an improved container closure requiring less effort in its handling and reducing the strain exerted upon the interfitting parts during assembly and disassembly.
  • a more specific object is to provide a closure of this type which requires only a minor modification of conventional vials in order to fit them for co-operation with a specially designed safety cap readily emplaceable thereon.
  • the two ramps exert a radial camming affect upon the concentric wall portions which are thereby relatively deformed to enable disengagement of the flanges whereupon the cap may be lifted off the container neck, the gap on one flange clearing the ramps on the other flange for such removal.
  • the cap and the container neck may be provided with external markings which must register with each other before the cap is lifted off. A more precise establishment of the uncapping position is assured, however, by providing the two ramps with complementary indexing formations engaging each other upon proper alignment.
  • the number of gaps in one of the flanges and the number of associated ramps aligned therewith may be increased to permit assembly and disassembly in, say, a pair of diametrically opposite uncapping posi- .tions.
  • FIG. 1 is anelevational view, partly in section, of the upper part of a vial enclosed by a cap in accordance with the present invention
  • FIG. 2 is a cross-sectional view taken on the line H- II of FIG. 1;
  • FIG. 3 is a view similar to FIG. 2 but showing the parts relatively rotated into an uncapping position
  • FIG. 4 is a fragmentary sectional view taken on the line lV-IV of FIG. 3.
  • the drawing shows a neck portion 15 of a container 10, such as a vial, terminating at the top in an outer peripheral flange 11 which constitutes an external bead and surrounds the container mouth over an art of approximately 350.
  • the bead is interrupted by a gap 12 aligned with a ramp 13 which is formed rigid with the container wall immediately below the level of bead 1 1.
  • Ramp 13 bears upon an annular shoulder 21 formed as an inner flange on the rim 25 of an associated cap 20 closing the container mouth.
  • Flange 21 is integral with another ramp 23 which lies at the level of ramp 13 but is normally offset therefrom, in a position of closure, as
  • Shoulders 11 and 21 have slightly beveled bottom and top surfaces 11a and 21a, respectively, by which they interlockingly engage each other. 1
  • both elements 10 and 20 consist of plasticmaterial of at least limited elastic deformability, e.g., a polycarbonate in the case of the vial l0 and polyvinyl chloride in the case of the cap 20.
  • the two ramps 13 and 23 are formed with beveled lateral edges 13a, 23a servingto cam them radially out of each others way when the cap 20 is rotated in the direction of arrow A, i.e., counterclockwise as viewed in FIGS. 2 and 3,- into the angular position of FIG. 3 in which the two ramps confront each other. In that position, a small vertical ridge 24 on ramp 23 snaps into a shallow groove 14 on ramp 13 as an indication of the correct alignment of ramp 23 with gap 12. Owing to the aforedescribed camming action, the peripheral wall portions 15 and 25 are spread apart in the region of the confronting ramps 13 and 23, as best seen in FIG.
  • the closed top of the cap 20 is shown provided on its underside with an annular rib 27 bearing from within against the upstanding wall portion 15 of the container when the vial is capped.
  • the cap is sufficiently deformable, it can also be used to close a rigid container neck, such as that of a glass bottle.
  • Tab 26 and cap 20 also serves as a reinforcement in the region of maximum stress exerted upon the rim 25 during uncapping.

Abstract

A vial with an open mouth surrounded by an annular flange is engageable by a lid whose rim is formed with an inner annular shoulder underlying that flange for positive interlocking to seal the vial. The flange has a gap, extending over an arc of roughly 10*, and is provided immediately below that gap with an external ramp coacting with a similar internal ramp on the shoulder of the cap when the latter is rotated into a predetermined angular position relative to the vial. In that position, the portion of the rim confronting the gap is cammed outwardly by the coacting ramps and may be lifted to disengage the cap from the vial whose gap clears the ramp of the cap rim. Complementary indexing formations on the two ramps may snap into engagement in the uncapping position to indicate the correct alignment of the internal ramp with the gap.

Description

United States Patent I 1 Jones 1 3,710,971 1 Jan. 16,1973
[54] SAFETY CAP FOR VIALS [75] inventor: Keith L. Jones, London 74, Ontario,
Canada [22] Filed: Nov. 8, 1971 [21] Appl. No.: 196,366
[52] US. Cl ..215/9, 215/41, 215/46 R [51] Int. Cl. ..B65d 55/02 [58] Field of Search ..215/9, 46 R, 41
[56] References Cited UNITED STATES PATENTS 3,339,773 9/1967 Stull ..215/46 R 3,430,798 3/1969 Goyet et a]. ..215/46 R Primary ExaminerGeorge T. Hall Alt0rneyKarl F. Ross [57] ABSTRACT A vial with an open mouth surrounded by an annular flange is engageable by a lid whose rim is formed with an inner annular shoulder underlying that flange for positive interlocking to seal the vial. The flange has a gap, extending over an arc of roughly 10, and is provided immediately below that gap with an external ramp coacting with a similar internal ramp on the shoulder of the cap when the latter is rotated into a predetermined angular position relative to the vial. In that position, the portion of the rim confronting the gap is cammed outwardly by the coacting ramps and may be lifted to disengage the cap from the vial whose gap clears the ramp of the cap rim. Complementary indexing formations on the two ramps may snap into engagement in the uncapping position to indicate the correct alignment of the internal ramp with the gap.
10 Claims, 4 Drawing'Figures My present invention relates to a safety cap for vials and other containers having an upstanding neck with an open mouth which is to be tightly closed by the application of the cap thereto.
Such caps generally have a depending wall portion forming a circular rim which embraces the neck-forming wall portion of the container. If the ring of the cap consists of resilently deformable material (e.g., polyethylene) it can be slightly distended in the closing operation so that an inner annular shoulder at the lower edge of the rim engages under an outer annular bead surrounding the container mouth, thereby locking the cap in position. The assembly and separation of such containers and caps is laborious and, if performed repeatedly, may fatigue the elastic rim so that the closure becomes less secure.
The general object of my present invention is to provide an improved container closure requiring less effort in its handling and reducing the strain exerted upon the interfitting parts during assembly and disassembly.
A more specific object is to provide a closure of this type which requires only a minor modification of conventional vials in order to fit them for co-operation with a specially designed safety cap readily emplaceable thereon. a These objects are realized, pursuant to my invention, by providing one of the two flanges-defining the aforementioned outer bead and inner shoulder, preferably the outer flange of the container neck, with a peripheral gap extending over a small arc, advantageously not more than about the two flanged wall portions carry a pair of coacting ramps confronting each other in a predetermined relative angular position (referred to hereinafter as the uncapping position) of the container and its cap, the first of these ramps being in line with the gap of the associated flange whereas the second ramp is carried on the opposite flange. In the uncapping position the two ramps exert a radial camming affect upon the concentric wall portions which are thereby relatively deformed to enable disengagement of the flanges whereupon the cap may be lifted off the container neck, the gap on one flange clearing the ramps on the other flange for such removal. To reassemble the container and-its cap, the
reverse procedure is followed whereupon the two elements are positively interlocked after being rotated out of the uncapping position. This arrangement will work as long as at least one of the two flanged wall portions is resiliently deformable. If both'materials are at least moderately elastic, the rim of thecap deforms outwardly whereas the container neck deforms inwardly, though not necessarily in the same degree;-in this case, each of the two elements undergoes only a reduced amount of deformation so that the danger of fatiguing is largely avoided. Also, since the region of deformation is predetermined, the cap and/or the container neck could be specially reinforced in that region to absorb the stresses.
In order to facilitate the alignment of the two ramps preparatorily to the uncapping of the container, the cap and the container neck may be provided with external markings which must register with each other before the cap is lifted off. A more precise establishment of the uncapping position is assured, however, by providing the two ramps with complementary indexing formations engaging each other upon proper alignment.
If desired, the number of gaps in one of the flanges and the number of associated ramps aligned therewith may be increased to permit assembly and disassembly in, say, a pair of diametrically opposite uncapping posi- .tions.
The above and other features of my invention will be described in detail hereinafter with reference to the ac-- companying drawing in which:
FIG. 1 is anelevational view, partly in section, of the upper part of a vial enclosed by a cap in accordance with the present invention;
FIG. 2 is a cross-sectional view taken on the line H- II of FIG. 1;
FIG. 3 is a view similar to FIG. 2 but showing the parts relatively rotated into an uncapping position; and
FIG. 4 is a fragmentary sectional view taken on the line lV-IV of FIG. 3.
The drawing shows a neck portion 15 of a container 10, such as a vial, terminating at the top in an outer peripheral flange 11 which constitutes an external bead and surrounds the container mouth over an art of approximately 350. The bead is interrupted by a gap 12 aligned with a ramp 13 which is formed rigid with the container wall immediately below the level of bead 1 1. Ramp 13 bears upon an annular shoulder 21 formed as an inner flange on the rim 25 of an associated cap 20 closing the container mouth. Flange 21 is integral with another ramp 23 which lies at the level of ramp 13 but is normally offset therefrom, in a position of closure, as
seen in FIGS. 1 and 2. Shoulders 11 and 21 have slightly beveled bottom and top surfaces 11a and 21a, respectively, by which they interlockingly engage each other. 1
In the illustrated embodiment, both elements 10 and 20 consist of plasticmaterial of at least limited elastic deformability, e.g., a polycarbonate in the case of the vial l0 and polyvinyl chloride in the case of the cap 20.
The two ramps 13 and 23 are formed with beveled lateral edges 13a, 23a servingto cam them radially out of each others way when the cap 20 is rotated in the direction of arrow A, i.e., counterclockwise as viewed in FIGS. 2 and 3,- into the angular position of FIG. 3 in which the two ramps confront each other. In that position, a small vertical ridge 24 on ramp 23 snaps into a shallow groove 14 on ramp 13 as an indication of the correct alignment of ramp 23 with gap 12. Owing to the aforedescribed camming action, the peripheral wall portions 15 and 25 are spread apart in the region of the confronting ramps 13 and 23, as best seen in FIG. 4, whereby the head 11 clears the shoulder 21 in the vicinity of the gap 12 which is flanked by a pair of outwardly flared edges 12a, 12b of that bead. It will be noted that the combined radial depth of ramps 13 and 23 substantially equals that of shoulder 11. Thus, with 20, the upper edge 1 lb of shoulder ll has been beveled as shown. The cap may now be pressed home to restore the position of FIGS. 3 and 4 whereupon the two parts may be relatively rotated,if nec'essaryfor angular offsetting of the ramps 13 and 23, e.g., into the position shown in FIGS. 1 and 2.
For greater stability the closed top of the cap 20 is shown provided on its underside with an annular rib 27 bearing from within against the upstanding wall portion 15 of the container when the vial is capped.
If the cap is sufficiently deformable, it can also be used to close a rigid container neck, such as that of a glass bottle.
It will be apparent that the arrangement described and illustrated may be reversed, with formation of a gap in flange 21 rather than flange 1 1 and with elevation of the two ramps to the level of the latter flange. In the preferred embodimenghowever, the camming action of the ramps exerts greater leverage and the continuity of the inner flange 21 of rim 25 affords a more dependable seal.
l have found that the aforementioned maximum arc of about 10 for the peripheral gap 12, while not critical, permits relatively easy separation.v and reassembly while preserving a large area of interlocking engagement for the vial and its gap.
Tab 26 and cap 20 also serves as a reinforcement in the region of maximum stress exerted upon the rim 25 during uncapping.
I claim:
1. In combination, a container with an upstanding peripheral wall portion defining an open mouth,.and a cap for said container with a depending peripheral wall portion defining a rim capable of embracing said mouth, at least one of said wall portions being elastically deformable; said upstanding wall portion being formed with an outer annular flange extending over at least a major part of the periphery of said mouth and bead from below upon interengagement of said container and said cap; one of said wall portions having at 7 least one peripheral gap in its flange and a first ramp I well portion upon interengagement of said container.
constituting an external bead; said depending wall poraligned with said gap on the level of the other flange; the other of said wall portions being provided with a second ramp on said other flange confronting said first ramp in a predetermined relative angular position of said container and said cap with exertion of a radial camming effect relatively deforming said wall portions for enabling disengagement of said flanges and lifting of said cap off said container, said gap clearing said second ramp in said angular position.
2. The combination defined inclaim 1 wherein said ramps are provided with coacting indexing formations yieldably engaging each other in said angular position.
3. The combination defined in claim 1 wherein said bead has a beveled underside and said shoulder has a beveled top side facilitating relative disengagement in said angular position.
4. The combination defined in claim 1 wherein said cap has a closed top provided on its underside with an annular rib bearing from within against said upstanding andsaidcap.
5. The combination defined lll claim 1 wherein said gap extends over an arc substantially not greater than 10. 7 v 6. The combination defined in claim 1 wherein said ramps are provided with beveled edges cammingly engaging each other upon rotation into said angular position.
7. The combination defined inclaim 1 wherein said bead is provided with said gap, said first ramp being

Claims (10)

1. In combination, a container with an upstanding peripheral wall portion defining an open mouth, and a cap for said container with a depending peripheral wall portion defining a rim capable of embracing said mouth, at least one of said wall portions being elastically deformable; said upstanding wall portion being formed with an outer annular flange extending over at least a major part of the periphery of said mouth and constituting an external bead; said depending wall portion being formed with an inner annular flange extending over at least a major part of the periphery of said cap and constituting a shoulder positively gripping said bead from below upon interengagement of said container and said cap; one of said wall portions having at least one peripheral gap in its flange and a first ramp aligned with said gap on the level of the other flange; the other of said wall portions being provided with a second ramp on said other flange confronting said first ramp in a predetermined relative angular position of said container and said cap with exertion of a radial camming effect relatively deforming said wall portions for enabling disengagement of said flanges and lifting of said cap off said container, said gap clearing said second ramp in said angular position.
2. The combination defined in claim 1 wherein said ramps are provided with coacting indexing formations yieldably engaging each other in said angular position.
3. The combination defined in claim 1 wherein said bead has a beveled underside and said shoulder has a beveled top side facilitating relative disengagement in said angular position.
4. The combination defined in claim 1 wherein said cap has a closed top provided on its underside with an annular rib bearing from within against said upstanding well portion upon interengagement of said container and said cap.
5. The combination defined in claim 1 wherein said gap extends over an arc substantially not greater than 10*.
6. The combination defined in claim 1 wherein said ramps are provided with beveled edges cammingly engaging each other upon rotation into said angular position.
7. The combination defined in claim 1 wherein said bead is provided with said gap, said first ramp being present on said container.
8. The combination defined in claim 7 wherein said bead has outwardly flared edges flanking said gap.
9. The combination defined in claim 7 wherein said rim is reinforced in the region of said second ramp.
10. The combination defined in claim 1 wherein the combined radial depth of said ramps substantiAlly equals that of said bead.
US00196366A 1971-11-08 1971-11-08 Safety cap for vials Expired - Lifetime US3710971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19636671A 1971-11-08 1971-11-08

Publications (1)

Publication Number Publication Date
US3710971A true US3710971A (en) 1973-01-16

Family

ID=22725100

Family Applications (1)

Application Number Title Priority Date Filing Date
US00196366A Expired - Lifetime US3710971A (en) 1971-11-08 1971-11-08 Safety cap for vials

Country Status (1)

Country Link
US (1) US3710971A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812989A (en) * 1970-10-08 1974-05-28 Diamond Int Corp Safety cap
US5845798A (en) * 1997-03-15 1998-12-08 The Procter & Gamble Company Closure assembly having a deformable anti-backoff feature independent of the screw threads
US6431380B1 (en) * 1999-10-21 2002-08-13 Rexam Medical Packaging Inc. Child-resistant flip top closure
WO2023278231A1 (en) * 2021-06-29 2023-01-05 Becton, Dickinson And Company Sample container for capillary blood collection

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339773A (en) * 1966-05-11 1967-09-05 Stull Engraving Company Screw closure
US3430798A (en) * 1967-03-01 1969-03-04 Oreal Bottle stopper

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339773A (en) * 1966-05-11 1967-09-05 Stull Engraving Company Screw closure
US3430798A (en) * 1967-03-01 1969-03-04 Oreal Bottle stopper

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812989A (en) * 1970-10-08 1974-05-28 Diamond Int Corp Safety cap
US5845798A (en) * 1997-03-15 1998-12-08 The Procter & Gamble Company Closure assembly having a deformable anti-backoff feature independent of the screw threads
US6431380B1 (en) * 1999-10-21 2002-08-13 Rexam Medical Packaging Inc. Child-resistant flip top closure
WO2023278231A1 (en) * 2021-06-29 2023-01-05 Becton, Dickinson And Company Sample container for capillary blood collection

Similar Documents

Publication Publication Date Title
US3841514A (en) Safety closurer
US3770153A (en) Safety closure
US3603472A (en) Transferable finish ring and container and closure for use therewith
US3696957A (en) Fluid-tight, flexible and tamper-proof caps for containers having a matching neck profile
AU732886B2 (en) Tamper-evident closure with abutment
US5601203A (en) Recyclable container and rotatable closure of plastics material
US3679085A (en) Child-proof cap for medicine bottles
EP0170435B1 (en) Improved linerless closure
US4337869A (en) Closure assembly
US4410098A (en) Childproof locking cap
US4712699A (en) Package employing unique seal
US3223278A (en) Snap ring closure seal for plastic containers
US3858741A (en) Composite plastic bottle and tamperproof closure therefor
GB2203729A (en) Closure systems for containers
US4353474A (en) Load bearing closure
EP3476760A1 (en) Cap
US4365721A (en) Child resistant closure and container assembly
US7874453B2 (en) Snap lock container with lid rotation tab
US4444325A (en) Closure and pry-off resealable finish
GB2264108A (en) A container and a closure therefor
US4429802A (en) Linerless closure cap
US3710971A (en) Safety cap for vials
US3181719A (en) Containers and closure caps for same
EP0021728B1 (en) Closure device for tumbler-like containers
US4289252A (en) Hermetically sealed container