US3485403A - Safety cap and container - Google Patents

Safety cap and container Download PDF

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Publication number
US3485403A
US3485403A US713414A US3485403DA US3485403A US 3485403 A US3485403 A US 3485403A US 713414 A US713414 A US 713414A US 3485403D A US3485403D A US 3485403DA US 3485403 A US3485403 A US 3485403A
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US
United States
Prior art keywords
cap
container
base
web
annular
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
US713414A
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English (en)
Inventor
Peter Hedgewick
George E Howell
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.)
Reflex Corp of Canada Ltd
Pac-Tec Inc
Original Assignee
Reflex Corp of Canada 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 Reflex Corp of Canada Ltd filed Critical Reflex Corp of Canada Ltd
Application granted granted Critical
Publication of US3485403A publication Critical patent/US3485403A/en
Assigned to PAC-TEC, INC. reassignment PAC-TEC, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: INTERNATIONAL TOOLS (1973) LTD., A CORP OF ONTARIO, ITL INDUSTRIES, INC., A CORP OF MI.
Assigned to CHASE COMMERCIAL CORPORATION reassignment CHASE COMMERCIAL CORPORATION ASSIGNS THE ENTIRE INTEREST , SUBJECT TO CONDITIONS IN SECURITY AGREEMENT RECITED. Assignors: PAC-TEC, INC., A MI CORP.
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
    • B65D41/02—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
    • B65D41/06—Threaded or like caps or cap-like covers secured by rotation with bayonet cams, i.e. removed by first pushing axially to disengage the cams and then rotating

Definitions

  • the container disclosed herein comprises a cylindrical plastic body which is molded in one piece and has circumferentially spaced radially extending projections on the upper end thereof that have notches therein.
  • the cap comprises a one-piece plastic body having a base and a peripheral flange with circumferentially spaced lugs extending radially inwardly for engagement with the notches.
  • a first annular integral flexible web is provided on the inner surface of the base and extends downwardly and outwardly.
  • An annular integral rib on the inner surface of the base overlies the annular flexible web and serves as a stop to prevent overflexing of the web.
  • a second annular integral flexible web extends downwardly from the inner surface of the base.
  • a liner having a deformable outer surface is interposed between the annular flexible webs and the lugs for engagement with the upper end of the container.
  • the base of the cap includes circumferential openings which facilitate its manufacture as a onepiece plastic cap but do not interfere with the sealing action of the annular Web.
  • the cap is applied to the container by a rotating movement. The cap can only be removed from the container by applying an axial force on the periphery of the cap and thereafter rotating the cap.
  • This invention relates to safety caps and containers.
  • a cap and container construction which is similar to that shown in the Hedgewick Patent 3,344,942 but in addition produces a moisture and vapor-tight seal.
  • the container comprises a cylindrical plastic body which can be molded in a one-piece mold and has circumferentially spaced radially extending projections on the upper end thereof that have notches therein.
  • the cap embodying the invention comprises a one-piece plastic body having a base and a peripheral flange with circumferentially spaced lugs extending radially inwardly for engagement with the notches.
  • a first annular integral flexible web is provided on the inner surface of the base and extends downwardly and outwardly.
  • An annular integral rib on the inner surface of the base overlies the annular flexible web and serves as a stop to prevent overflexing of the web.
  • a second annular integral flexible web extends downwardly from the inner surface of the base.
  • a liner having a deformable outer surface is interposed between the annular flexible webs and the lugs for engagement with the upper end of the container.
  • the base of the cap includes circumferential openings which facilitates its manufacture as a one-piece plastic cap but do not interfere with the sealing action of the annular web.
  • the cap is applied to the container by a rotating movement. The cap can only be removed from the container by applying an axial force on the periphery of the cap and thereafter rotating the cap.
  • FIG. 1 is a fragmentary vertical sectional view of a cap and container embodying the invention.
  • FIG. 2 is a view similar to FIG. 1 showing the relative positions of the cap and container as the cap is being removed from the container.
  • FIG. 3 is a side elevational view of the container.
  • FIG. 4 is a plan view of the container.
  • FIG. 5 is a fragmentary side elevational view of a portion of the upper end of the container.
  • FIG. 6 is a bottom plan view of the cap.
  • FIG. 7 is a top plan view of the cap.
  • the invention comprises a cap 10 that is adapted to be applied to the upper end of a container C, each of which is molded by injecting plastic into a cavity.
  • the cap 10 includes a base 11 and a peripheral flange 12 extending axially of the axis of the cap.
  • a plurality of radially inwardly extending lugs 13 are provided on the inner surface 14 of the flange 12 adjacent the lower end thereof.
  • Spring means in the form of a first integral flexible resilient annular web 15 extends generally axially and radially outwardly from the inner surface 16 of the base 11 and is formed with an enlarged rib 17 on the free end thereof that is adapted to engage the upper end of the container C.
  • the Web 15 has a lesser cross section intermediate its ends so that it will flex intermediate its ends upon application of an axial force.
  • An integral annular rib 18 extends axially from the inner surface 16 of the base 11 in generally overlying relation to the free end of the web 15.
  • An abutment member in the form of a second integral flexible resilient annular web 27 extends axially downwardly from the inner surface 16 of base 11.
  • the container C is generally cylindrical at least at the upper end and preferably throughout so that it can be made in a single cavity one-piece mold.
  • the container C is formed at its upper end with a plurality of outwardly extending radial projections 19. As shown in FIG. 5, each radial projection 19 is formed with a first portion 20 and a circumferentially spaced second portion 21 to define a notch 22.
  • the lower surface 23 of the first portion 20 is tapered gradually downwardly and circumferentially to blend in a smooth curve with the side wall 24 of the notch 22.
  • the second portion 21 extends axially a greater distance from the upper end of the container to define the side 25 of the notch 22.
  • the upper end of the container 11 is formed with an upwardly extending rib 26.
  • the cap 10 is formed with a plurality of axially extending openings in the base 11 which overlie the lugs 13 and result from the apparatus for manufacture of the cap.
  • a liner or sealing member 30 is interposed between the free edge of the annular web and the lugs.
  • the liner 30 has a deformable surface 31 which conforms with the rib 26 on the mouth or upper end of the container as presently described.
  • the cap 10 In order to assemble the cap 10 on the container C, the cap is applied to the mouth or upper end of the container with the liner 30 engaging rib 26. The cap is then rotated to bring the lugs 13 into engagement with the tapered surfaces 23 of the projections 19. Further rotation of the cap causes the lugs to follow the surfaces 23 producing a flexing of the web 15 intermediate its free edge and its base until the lugs engage the notches 22. In this position, the cap 10 is locked on the container C by the spring force of the web 15 and the bead '17 of the web 15 is in sealing engagement with the upper surface 26 of the container C as shown in FIG. 1.
  • the base 11 of the cap is of such a thickness that it will flex if a force is applied at the center of the base 11.
  • the area of juncture of the base of the web and the base 11 of the cap substantially overlies the upp r end of the container.
  • the cap cannot be removed by a simple rotation so that children are deterred, if not prevented, from removing the cap.
  • an axial force must be provided on the periphery of the cap in the direction of the arrow as shown in FIG. 2 to cause a flexing of the web 15 and permit the lugs 13 to move axially and thereby clear the portion of the projections.
  • the cap can be turned in the direction of the arrow shown in FIG. 2 to permit its removal. Because of the flexible nature of the base 11 of the cap, the axial force must be provided on the eriphery of the cap and not at the center of the cap. This force is most conveniently applied by pressing the container against the palm of the hand.
  • the rib 18 prevents overflexing of the spring means 15 beyond the elastic limit which might cause a loss of resiliency or spring action of the web.
  • the greater axial extent of the portion 21 prevents turning the cap beyond the notch 22.
  • the greater axial extent of the portion 21 prevents rotating the cap in the wrong direction for removal.
  • the spring means 15 flexes intermediate its ends d wnwardly as shown in FIG. '2.
  • the inter mediate portion engages the liner along an annuiar area spaced inwardly from the periphery of the liner and applies a force on the inner surface of the liner that forces the liner downwardly in an axial direction and radially outwardly into conformity with the rib 26 on the upper end of the container. Since during the engagement and disengagement of the cap there is also a rotary move-- ment, this tends to smooth out deformable surface 31 of the liner 30 facilitating the moisture and vapor seal that is formed between the liner and the rib of the container.
  • the free edge of the abutment member 27 engages the upper surface of the liner 30 as shown in FIG. 1.
  • the free edge of the web 27 is spaced vertically above the free edge of the web 15 when the cap is off the container and the webs are untensioned. The distance between the free edges is preferably equal to one half the distance flexed by the free edge of the web 15.
  • the second web 27 flexes inwardly as shown in FIG. 2.
  • the second web 27 performs the further function of facilitating the tendency of the first web to smooth out the deformable surface 31 of the liner during application and removal of the cap.
  • the cap 10 is made of a suitable plastic material which provides the desired flexibility of the integral web 15.
  • a preferred material comprises polypropylene although other materials such as polyethylene can be used.
  • the container C is also preferably made of a plastic.
  • a preferred plastic material comprises a high impact styrene.
  • a cap adapted to be appl ed to a container comprising: a base; a peripheral flange extending axially from said base for receiving the mouth of a container to which the cap is to be applied; a plurality of radially inwardly projecting lugs on the inner wall of said flange; a generally flat sealing member carried by said cap, said sealing member being received in said flange and having a peripheral portion overlying said lugs; spring means between the base and the sealing member urging the sealing member toward engagement with said lugs; and means on said base for engaging said sealing member to limit deformation of the sealing member toward said base.
  • a cap as claimed in claim 1 wherein said last named means comprises an abutment m mber projecting axially from said base for engaging said sealing member radially inwardly of the engagement of said sealing member by said spring means.
  • a cap as claimed in claim 2 wherein said abutment member is resilient to yieldably resist deformation of said sealing member toward said base.
  • a cap as claimed in claim 3 wherein said abutment member includes an inner annular end engaged with said base and extends axially therefrom and terminates in an outer annular free end engageable with said sealing memher.
  • a safety package for medicines and the like comprising: a container having a mouth portion with an annular rim; a cap having a base with an integral peripheral flange projecting axially therefrom for receiving the mouth portion of said container; interengageable locking elements on the inner wall of the flange of the cap and the outer Wall of the mouth of the container, the cap locking elements projecting inwardly from the inner wall of the flange and being engageable with and disengageable from the container locking elements by axial motion of the cap relative to the container followed by rotative motion of the cap relative to the container; hollow cylindrical abutment means surrounded by said flange and having an inner annular end formed integrally with said base and projecting axially therefrom and terminating in an outer annular free end having an outer diameter less than the inner diameter of the mouth of the container; and resilient means carried by said cap reacting against said annular rim for biasing the cap against axial motion relative to said container to resiliently resist disengagement of the cap and container locking elements.
  • a safety cap of the type having a base with a peripheral flange extending axially therefrom and adapted to receive the mouth of a container with a plurality of inwardly projecting cap locking elements Spaced peripherally from each other on the inner wall of the flange and located an equal axial distance from the base adapted for interlocked engagement with and disengagement from container locking elements spaced peripherally from each other on the outer wall of the mouth of such container only by axial motion of the cap relative to the container followed by rotative motion of the cap relative to the container and wherein the cap is biased to a fixed axial position relative to the container to resiliently maintain the cap locking elements engaged with the container locking elements and resiliently resist axial movement of the cap toward the container, the improvement comprising: hollow cylindrical abutment means surrounded by said flange and having an inner annular end joined integrally to said base and projecting axially therefrom and terminating in an outer annular free end; and a generally flat disc member received in said flange between the cap locking elements and free end of said

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US713414A 1968-03-15 1968-03-15 Safety cap and container Expired - Lifetime US3485403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71341468A 1968-03-15 1968-03-15

Publications (1)

Publication Number Publication Date
US3485403A true US3485403A (en) 1969-12-23

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ID=24866049

Family Applications (1)

Application Number Title Priority Date Filing Date
US713414A Expired - Lifetime US3485403A (en) 1968-03-15 1968-03-15 Safety cap and container

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US (1) US3485403A (US06534493-20030318-C00166.png)
BE (1) BE727493A (US06534493-20030318-C00166.png)
CA (1) CA927780A (US06534493-20030318-C00166.png)
CH (1) CH501529A (US06534493-20030318-C00166.png)
DE (1) DE1903814A1 (US06534493-20030318-C00166.png)
GB (1) GB1259119A (US06534493-20030318-C00166.png)
NL (1) NL6901343A (US06534493-20030318-C00166.png)
NO (1) NO122901B (US06534493-20030318-C00166.png)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739933A (en) * 1971-03-22 1973-06-19 B Degaetano Liquid-proof safety closure
JPS4887974A (US06534493-20030318-C00166.png) * 1972-02-04 1973-11-19
US3782604A (en) * 1972-01-20 1974-01-01 M Kessler Screw cap with safety cover
US3927783A (en) * 1974-01-28 1975-12-23 Clayton Bogert Safety closure for containers
DE2749308A1 (de) * 1977-01-26 1978-07-27 Owens Illinois Inc Dampfdichtungssicherheitsverschluss und behaelter
EP0323531A1 (en) * 1987-11-13 1989-07-12 FAST S.p.A. Pouring cover for paints, enamels and the like
US5927532A (en) * 1997-04-21 1999-07-27 Owens-Illinois Closure Inc. Vapor-seal child resistant closure and container package
US20050121406A1 (en) * 2003-12-03 2005-06-09 Brozell Brian J. Child-resistant closure, container and package
US20060273061A1 (en) * 2005-06-06 2006-12-07 Mark Fricke Method and device for a child resistant dropper closure
US7527159B2 (en) 2004-03-11 2009-05-05 Rexam Closure Systems Inc. Threaded child-resistant package having linerless closure
WO2019099326A1 (en) * 2017-11-14 2019-05-23 Kush Bottles, Inc. Child-resistant container

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1514337A (en) * 1922-11-20 1924-11-04 Rappenecker Carl Adolf Closing device for bottles. preserve glasses, and the like
US1978946A (en) * 1928-11-29 1934-10-30 Aluminum Co Of America Closure for bottles and other receptacles
US2138376A (en) * 1937-09-02 1938-11-29 Owens Illinois Pacific Coast C Closure
FR850871A (fr) * 1939-02-25 1939-12-28 Rapeaud & Cie Bouchon pour flacon
US2387439A (en) * 1942-02-05 1945-10-23 Crown Cork & Seal Co Method of sealing containers
US2397589A (en) * 1943-05-01 1946-04-02 Owens Illinois Glass Co Container closure
US2419304A (en) * 1943-07-28 1947-04-22 Crown Cork & Seal Co Cap
FR1018172A (fr) * 1950-05-19 1952-12-29 Bouchage pour bouteilles
US2776066A (en) * 1954-08-20 1957-01-01 Elbert H E Thornton Closure for containers
US3151757A (en) * 1961-05-26 1964-10-06 Smith & Stone Ltd Container closure
US3255907A (en) * 1964-01-13 1966-06-14 Wheeling Stamping Co Linerless screw closure for containers
US3344942A (en) * 1966-04-05 1967-10-03 Hedgewick Peter Safety cap and container
US3348717A (en) * 1964-12-09 1967-10-24 Treanor Eugene Joseph Closures for containers

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1514337A (en) * 1922-11-20 1924-11-04 Rappenecker Carl Adolf Closing device for bottles. preserve glasses, and the like
US1978946A (en) * 1928-11-29 1934-10-30 Aluminum Co Of America Closure for bottles and other receptacles
US2138376A (en) * 1937-09-02 1938-11-29 Owens Illinois Pacific Coast C Closure
FR850871A (fr) * 1939-02-25 1939-12-28 Rapeaud & Cie Bouchon pour flacon
US2387439A (en) * 1942-02-05 1945-10-23 Crown Cork & Seal Co Method of sealing containers
US2397589A (en) * 1943-05-01 1946-04-02 Owens Illinois Glass Co Container closure
US2419304A (en) * 1943-07-28 1947-04-22 Crown Cork & Seal Co Cap
FR1018172A (fr) * 1950-05-19 1952-12-29 Bouchage pour bouteilles
US2776066A (en) * 1954-08-20 1957-01-01 Elbert H E Thornton Closure for containers
US3151757A (en) * 1961-05-26 1964-10-06 Smith & Stone Ltd Container closure
US3255907A (en) * 1964-01-13 1966-06-14 Wheeling Stamping Co Linerless screw closure for containers
US3348717A (en) * 1964-12-09 1967-10-24 Treanor Eugene Joseph Closures for containers
US3344942A (en) * 1966-04-05 1967-10-03 Hedgewick Peter Safety cap and container

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739933A (en) * 1971-03-22 1973-06-19 B Degaetano Liquid-proof safety closure
US3782604A (en) * 1972-01-20 1974-01-01 M Kessler Screw cap with safety cover
JPS5516903B2 (US06534493-20030318-C00166.png) * 1972-02-04 1980-05-07
US3776407A (en) * 1972-02-04 1973-12-04 Kerr Glass Mfg Corp Closure
JPS4887974A (US06534493-20030318-C00166.png) * 1972-02-04 1973-11-19
US3927783A (en) * 1974-01-28 1975-12-23 Clayton Bogert Safety closure for containers
DE2749308A1 (de) * 1977-01-26 1978-07-27 Owens Illinois Inc Dampfdichtungssicherheitsverschluss und behaelter
EP0323531A1 (en) * 1987-11-13 1989-07-12 FAST S.p.A. Pouring cover for paints, enamels and the like
US5927532A (en) * 1997-04-21 1999-07-27 Owens-Illinois Closure Inc. Vapor-seal child resistant closure and container package
US20050121406A1 (en) * 2003-12-03 2005-06-09 Brozell Brian J. Child-resistant closure, container and package
US7819264B2 (en) 2003-12-03 2010-10-26 Rexam Closure Systems Inc. Child-resistant closure, container and package
US7527159B2 (en) 2004-03-11 2009-05-05 Rexam Closure Systems Inc. Threaded child-resistant package having linerless closure
US20060273061A1 (en) * 2005-06-06 2006-12-07 Mark Fricke Method and device for a child resistant dropper closure
WO2019099326A1 (en) * 2017-11-14 2019-05-23 Kush Bottles, Inc. Child-resistant container
US10442586B2 (en) 2017-11-14 2019-10-15 KushCo Holdings Child-resistant container

Also Published As

Publication number Publication date
NL6901343A (US06534493-20030318-C00166.png) 1969-09-17
CH501529A (fr) 1971-01-15
GB1259119A (US06534493-20030318-C00166.png) 1972-01-05
CA927780A (en) 1973-06-05
BE727493A (US06534493-20030318-C00166.png) 1969-07-28
DE1903814A1 (de) 1970-04-16
NO122901B (US06534493-20030318-C00166.png) 1971-08-30

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Legal Events

Date Code Title Description
AS Assignment

Owner name: CHASE COMMERCIAL CORPORATION 1411 BROADWAY NEW YOR

Free format text: ASSIGNS THE ENTIRE INTEREST , SUBJECT TO CONDITIONS IN SECURITY AGREEMENT RECITED.;ASSIGNOR:PAC-TEC, INC., A MI CORP.;REEL/FRAME:004433/0455

Effective date: 19841109

Owner name: PAC-TEC, INC., 30200 TELEGRAPH ROAD, SUITE 256, BI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:INTERNATIONAL TOOLS (1973) LTD., A CORP OF ONTARIO;ITL INDUSTRIES, INC., A CORP OF MI.;REEL/FRAME:004456/0212

Effective date: 19841109