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US3028992A - Reusable tamper-indicating container closure - Google Patents

Reusable tamper-indicating container closure Download PDF

Info

Publication number
US3028992A
US3028992A US83574659A US3028992A US 3028992 A US3028992 A US 3028992A US 83574659 A US83574659 A US 83574659A US 3028992 A US3028992 A US 3028992A
Authority
US
United States
Prior art keywords
tooth
rim
closure
retention
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Other languages
English (en)
Inventor
Lawrence E Bucher
Richard C Hug
William C Eastin
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.)
CLAYTON Corp OF DELAWARE Inc
Original Assignee
CLAYTON CORP OF DELAWARE Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to NL103978D priority Critical patent/NL103978C/xx
Priority to NL255172D priority patent/NL255172A/xx
Application filed by CLAYTON CORP OF DELAWARE Inc filed Critical CLAYTON CORP OF DELAWARE Inc
Priority to US83574659 priority patent/US3028992A/en
Priority to CH949660A priority patent/CH364706A/fr
Priority to DED34079A priority patent/DE1176505B/de
Priority to FR836533A priority patent/FR1265740A/fr
Priority to GB2929960A priority patent/GB958503A/en
Application granted granted Critical
Publication of US3028992A publication Critical patent/US3028992A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/40—Closure caps
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/20—Frangible elements completely enclosed in closure skirt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging

Definitions

  • FIG. 1 A first figure.
  • valve covers for product dispensers such as valved, pressurized aerosol dispensers commonly used for providing sprays, foams and the like.
  • a protective valve closure or cap is ordinarily provided to avoid inadvertent discharge of the container contents, and protection during shipment and handling.
  • Some of such valve covering closures heretofore in use have been molded of relatively soft polyethylene material which is readily flexed to permit removal of the closure.
  • Such closures may be subject to the objection that they do not protect the contents of the container from tampering.
  • the containers commonly used as such dispens ing v containers are opaque, the consumer cannot detect whether a portion
  • Another form of prior art closure is that shown in the patent to Soifer, No.
  • 2,643,915 which discloses a cap molded of a brittle or frangibleplastic material such as polystyrene, equipped with a break-out tab or lever in angular registration with a retention tooth, the tab and tooth being circumscribed by a break-out line.
  • the purposes of the present invention include achieving the advantages and overcoming the disadvantages of both of these prior art types, by utilizing a cap which is superficially similar to that of the Soifer patent, but different in the certain significant particulars, including the follow- Instead of utilizing a brittle plastic material, it utilizes a tough material possessing strength in both tension and torsion.
  • a somewhat hardened polyethylene material is the best practical, commercially available material for this purpose successfully used.
  • the break-out provision in the cap does not extend entirely to the base of the tooth, but instead stops short of the lower rim, leaving tough twistable retention bands holding the tooth in place on the cap. These bands may extend and twist somewhat, thus permitting a radially outward displacement and a cocking or tilting displacement of the tooth.
  • a still further difference is the provision of a thickened base projecting externally from the tooth so that when the lever is pressed downward, the base will bear downward against a shoulder on the container, extend and twist the retention bands,.and raise the cap from the mouth of the container.
  • FIGURE 1 is a rear elevational view of a closure incorporating the present invention.
  • FIGURE 2 is a side elevation thereof.
  • FIGURE 3 is a bottom view thereof.
  • FIGURE 4 is a sectional view taken along line 4 of FIGURE 2.
  • FIGURE 5 is an enlarged section, shown fragmentarily,
  • FIGURE 6 is a further enlarged fragmentary sectional view taken along line 6--6 of FIGURE 5.
  • FIGURE 7 is an enlarged fragmentary view of the retention tooth and break-out provision, as seen from the inside of the cap.
  • FIGURE 8 is a view similar to FIGURE 5 showing the break-out provision broken through but the tooth still engaged beneath the ledge outward of the container mouth.
  • FIGURE 9 is a view similar to FIGURE 8 showing the break-out lever pressed further downward to form a fulcrum against the container shoulder, lifting the closure from the container mouth.
  • the closure hereafter described is intended for use in combination with a typical dispensing container such as the can generally designated 11 in FIGURE 5, having a tapering upper wall 12 terminating in a radially inward extending, slightly tapered shoulder 13 which extends inward to the mouth 14, and is there provided with an upwardly extending rounded lip 15.
  • the lip 15 is covered with the outwardly rounded rim '16 of a mounting cup generally designated 17, at whose center is mounted a valving spout 18.
  • the outer edge of the rim 16 extends outwardly and downwardly over the lip 15 of the container,
  • the closure 26 hereinbefore referred to is molded preferably of polyethylene, hardened somewhat more than polyethylene heretofore commonly in use but nevertheless of a grade and composition which is characterized by toughness, a degree of extensibility in tension, and ability to resist torsion or twist.
  • This material is neither brittle nor frangible in the sense that the polystyrene caps (heretofore utilized for tamper-indicating closures as in the Sofier patent) are frangible. Nevertheless this material will fracture after being stretched or extended, a quality which is availed of to advantage, as hereinafter disclosed.
  • the closure formed by molding such a plastic is generally designated 20 and, as illustrated, comprises an upper cap portion including a top 21, and ribbed, slightly tapering upper sidewall 22, an outward flared shoulder 23, and a substantially cylindrical lower skirt portion 24 which extends approximately the full height of the container lip 15 and down to the container shoulder, adjacent to which it presents a lower rim 25.
  • the lower skirt portion 24 has an inner diameter slightly greater than the outer diameter of the mounting cup 17 at and above the ledge 19; but interrupted by certain inward projecting portions which serve to hold the closure 29 in place.
  • These inward projecting portions include several vertically-extending, inward-projecting ridges 26, spaced from each other, there being four shown in FIG- URE 3; a fixed tooth 27 (also referred to as a fixed retention segment) extending inward, approximately in the plane of the lower edge rim 25, an amount slightly greater than the inward projection of the vertical ridges 26, but being shallow enough to fit between the ledge 19 and the shoulder 13; and a latching tooth or retention segment 28, spaced diametrically opposite the fixed tooth 27, and,-
  • Both the fixed tooth 27 and the latching tooth 28 extend horizontally for some convenient length, which may be an arcuate distance of approximately thirty degrees (30),
  • both the fixed tooth 27 and the latching tooth 28 are provided with a somewhat tapering upper surface 29, extending downward and inward, whereby to engage beneath the ledge 19 when the closure 20 is in place as shown in FIG- URE 5.
  • an externally thickened lever base portion 30 On the outer side of the skirt portion 24 is integrally molded an externally thickened lever base portion 30, from which projects upward and outward a latching lever 31 including a rounded upper manipulation portion 32, to be depressed by applying a thumb or finger thereto.
  • the lever base portion 39 has a lower surface 33 extending radially outward to a somewhat rounded fulcrum tip portion 34.
  • the under surface 33 of the unbroken closure 20 shown in FIGURE 5 is at a level above but fairly closely adjacent to the container shoulder 13.
  • the rim 25 is continuous, the portions therein on both sides adjacent to the latching tooth 28 being referred to as the retention band portions 35.
  • These retention band portions 35 have a depth, extending upwardly from the rim 25, at least as great as the depth of the latching tooth 28.
  • a thinned break-out line 36 which extends upward to and nearly completely circumscribes the upper portion of the lever base 30.
  • a fracturable skirt portion 37 is also interrupts the break-out line 36.
  • This fracturable skirt portion 37 is shown intact in FIGURES 5 and 7, and fractured in FIGURES 8 and 9. Over a portion of the lengths of the break-out line 36 between the fracturable skirt portion 37 and the retention band portions 35, the break-out line 36 may be thinned to zero thickness; that is, it may include elongated apertures 38.
  • the closure 20 is engaged over the ledge 19 by pressing it downward, the skirt portion 24 flexing as a whole to permit engagement.
  • the tapering upper surfaces 29 of the latching tooth 28 and fixed tooth 27 press securely against the under surface of the ledge 19, with the rim presented closely adjacent to, or in contact with, the inner portion of the shoulder 13.
  • the closure 20 cannot be removed merely by hand; and the 'use of any tool would cause fracture in the skirt portion 24, most likely in the break-out line 36.
  • the twisting of the retention band portions 35 may begin.
  • the fracturable portion 37 is located so prominently, that breakage there is easily, noted. Any break in the material at the fracturable portion 37 will signal to the user that the closure 20 has already been broken. Thereafter the lever 31 will not stay in an upright position shown in FIGURE 5, but tends rather to droop to the position shown in FIGURE 8.
  • a reusable tamper-indicating container closure comprising an integral cap formed of a tough and resilient plastic material and having a lower edge rim including a retention tooth, and externally thickened portion in angular registration with the tooth, said thickened portion 5 having a lever portion projecting therefrom, there being a thinned break-out line upward adjacent the tooth, the breakout line having ends extending downwardly on both sides of said thickened portion and stopping short of the lower edge of the rim, together with extensible, twistable retention bands in the periphery of the rim beneath the ends of said line on both sides of the retention tooth.
  • a reusable tamper-indicating container closure comprising a cap structure integrally formed of tough and resilient plastic and having a skirt portion terminating in a lower continuous circular rim, a locking tooth projecting radially inwardly from a portion of said rim, an externally thickened portion of said skirt projecting radially outward from the lower edge of the rim and located in angular registration with the locking tooth, a lever extending from the externally thickened portion, and a break-out line having lower ends spacedly upward from the lower edge of the rim, said line extending upwardly from said ends to demarcate the upper part of the externally thickened skirt portion, together with extensible, twistable retention bands in the periphery of the rim on both sides of the locking tooth beneath the ends of said break-out line.
  • a reusable break-indicating closure comprising a cap molded of a plastic material characterized by toughness in tension and torsion and including integrally a cover portion having a skirt, a retention segment at the lower edge of the skirt extending inwardly therefrom, an externally projecting lever in angular registration with the retention segment, and fracturable break-through means formed in the skirt upwardly adjacent the retention segment and having ends stopping short of the lower edge, together with extensible twistable integral retention band portions at both sides of the retention segment immediately beneath the ends of the break-through means.
  • a container including a mouth having a circumferential ledge and a shoulder extending radially outward from the mouth beneath the ledge, together with a one-piece molded cap formed of a tough and resilient plastic material and having a closure skirt fitting radially outward of the container mouth, the skirt terminating in a lower edge rim presented against the container shoulder, the rim including an inward-projecting retention tooth engageable beneath the ledge, the skirt having a fulcrum portion extending outward at a level above and adjacent to the container shoulder, said portion being in angular registration with the tooth, said portion having a lever extending therefrom, there being a break-out portion in the skirt upwardly immediately adjacent the tooth, and extensible, twistable integral retention bands in the lower edge periphery of the rim at both sides of the tooth, whereby, on fracture of the breakout portion, the fulcrum portion may bear against the container shoulder to disengage the retention tooth from beneath the ledge.
  • a reusable container closure comprising a cap structure integrally formed of a plastic material characterized by toughness in tension and torsion, and having a skirt portion terminating in a lower continuous circular rim, a locking tooth projecting radially inward from a portion of said rim, a line perforated through the skirt above the locking tooth, said line having an end at each side of the tooth, extensible twistable retention bands in the periphery of the rim beneath the ends of said line on both 6.
  • the combination comprising a container including a mouth having a circumferential ledge, together with a onepiece molded cap formed of a tough and resilient plastic material and having a closure skirt fitting radially outward of the container mouth, the skirt terminating in a lower edge rim including an inward-projecting retention tooth engageable beneath the ledge and an outward-projecting lever in angular registration with the tooth, the skirt having a line perforated therethrough and extending over the tooth and lever, said line having lower ends spaced closely above the rim on both sides of the tooth whereby to constitute the portions of the rim beneath the ends of the line as extensible, twistable integral retention bands.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US83574659 1959-08-24 1959-08-24 Reusable tamper-indicating container closure Expired - Lifetime US3028992A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL103978D NL103978C (fr) 1959-08-24
NL255172D NL255172A (fr) 1959-08-24
US83574659 US3028992A (en) 1959-08-24 1959-08-24 Reusable tamper-indicating container closure
CH949660A CH364706A (fr) 1959-08-24 1960-08-22 Dispositif de fermeture d'un récipient dont l'intégrité du contenu est assurée jusqu'à la première ouverture du dispositif
DED34079A DE1176505B (de) 1959-08-24 1960-08-23 Wiederverwendbare Verschlusskappe fuer Fluessig-keitsbehaelter, insbesondere Zerstaeuber von Flues-sigkeiten
FR836533A FR1265740A (fr) 1959-08-24 1960-08-23 Fermeture de récipient réutilisable et indicatrice de spoliation
GB2929960A GB958503A (en) 1959-08-24 1960-08-24 Reusable tamper-indicating container closure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83574659 US3028992A (en) 1959-08-24 1959-08-24 Reusable tamper-indicating container closure

Publications (1)

Publication Number Publication Date
US3028992A true US3028992A (en) 1962-04-10

Family

ID=25270353

Family Applications (1)

Application Number Title Priority Date Filing Date
US83574659 Expired - Lifetime US3028992A (en) 1959-08-24 1959-08-24 Reusable tamper-indicating container closure

Country Status (5)

Country Link
US (1) US3028992A (fr)
CH (1) CH364706A (fr)
DE (1) DE1176505B (fr)
GB (1) GB958503A (fr)
NL (2) NL103978C (fr)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3097758A (en) * 1961-07-21 1963-07-16 Irvin J Gershen Pilfer proof cap for aerosol containers
US3125259A (en) * 1964-03-17 Two-part closure with frangible elements
US3128004A (en) * 1962-04-12 1964-04-07 Clayton Corp Of Delaware Self-lifting locking cap for aerosol containers and the like
US3149717A (en) * 1962-08-27 1964-09-22 Johnson & Johnson Container for hypodermic needle
US3165223A (en) * 1963-01-25 1965-01-12 Sargent Paint Mfg Company Container closure
US3170603A (en) * 1962-12-31 1965-02-23 Gary L Kitterman Tamperproof container closure
US3206111A (en) * 1963-12-17 1965-09-14 Louis A Labe Tamper-proof cover for coin boxes
US3292257A (en) * 1964-07-24 1966-12-20 Samuel J Popeil Culinary device for shelling corn, coring and such
US3414167A (en) * 1967-03-09 1968-12-03 Osrow Products Company Inc Tamperproof overcap for a valved pressure-loaded container
US3480184A (en) * 1967-07-20 1969-11-25 Henry Richard Landis Protective closure for aerosol containers
US3662915A (en) * 1970-10-08 1972-05-16 Dougherty Bros Tamper proof package
US3888383A (en) * 1973-05-07 1975-06-10 Bowater Packaging Ltd Container having a tamperproof closure
US3917101A (en) * 1971-04-22 1975-11-04 Ware Fuse Corp Outlet box and method of making the same
US3927796A (en) * 1975-04-16 1975-12-23 Harvey B Whitehouse Container and closure therefor
US4347940A (en) * 1981-04-10 1982-09-07 The Continental Group, Inc. Lever-off tamper-indicating composite closure
US4942977A (en) * 1988-12-08 1990-07-24 Hidding Daniel P Breakaway tamper evident cover
US4962864A (en) * 1988-04-27 1990-10-16 Clayton Corporation Tamper-evident aerosol cap
US5722568A (en) * 1996-09-13 1998-03-03 Summit Packaging Systems, Inc. Tamper-evident aerosol cap
NL1010681C2 (nl) * 1998-11-30 2000-05-31 Ten Cate Plasticum Tilburg B V Combinatie van een bus en een op de bus geplaatste kap en een werkwijze voor het tegen oneigenlijk gebruik voorafgaande aan verkoop beveiligen van een dergelijke combinatie.
US6070765A (en) * 1998-06-17 2000-06-06 Delta Industries, Inc. Tampering indicating cover for aerosol valve
US20080078736A1 (en) * 2006-09-29 2008-04-03 Clayton Corporation Tamper evident cover for an aerosol can
USD740661S1 (en) * 2012-01-20 2015-10-13 Gateway Plastics, Inc. Closure with integrated dosage cup

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414006A1 (fr) * 1978-01-06 1979-08-03 Bouchage Mecanique Perfectionnements aux capsules inviolables permettant le rebouchage
GB2138411A (en) * 1983-04-11 1984-10-24 Audus Noble Ltd Tamperproof container and closure assembly
GB2184102A (en) * 1986-11-04 1987-06-17 Ici Plc Tamper-indicating closure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470057A (en) * 1945-12-06 1949-05-10 Scovill Manufacturing Co Tamperproof screw closure
US2643015A (en) * 1949-12-08 1953-06-23 Dev Res Inc Tamperproof container closure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675040A (en) * 1952-12-22 1954-04-13 Milton A Raun Container and closure therefor
US2790576A (en) * 1954-03-22 1957-04-30 Celluplastic Corp Closure arrangement for thin walled rigid plastic vial
US2831600A (en) * 1954-09-27 1958-04-22 Merck & Co Inc Detachable closure
US2844290A (en) * 1955-07-27 1958-07-22 Crown Cork & Seal Co Detergent can
US2778525A (en) * 1955-08-29 1957-01-22 Lermer Plastics Mfg Co Container

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470057A (en) * 1945-12-06 1949-05-10 Scovill Manufacturing Co Tamperproof screw closure
US2643015A (en) * 1949-12-08 1953-06-23 Dev Res Inc Tamperproof container closure

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125259A (en) * 1964-03-17 Two-part closure with frangible elements
US3097758A (en) * 1961-07-21 1963-07-16 Irvin J Gershen Pilfer proof cap for aerosol containers
US3128004A (en) * 1962-04-12 1964-04-07 Clayton Corp Of Delaware Self-lifting locking cap for aerosol containers and the like
US3149717A (en) * 1962-08-27 1964-09-22 Johnson & Johnson Container for hypodermic needle
US3170603A (en) * 1962-12-31 1965-02-23 Gary L Kitterman Tamperproof container closure
US3165223A (en) * 1963-01-25 1965-01-12 Sargent Paint Mfg Company Container closure
US3206111A (en) * 1963-12-17 1965-09-14 Louis A Labe Tamper-proof cover for coin boxes
US3292257A (en) * 1964-07-24 1966-12-20 Samuel J Popeil Culinary device for shelling corn, coring and such
US3414167A (en) * 1967-03-09 1968-12-03 Osrow Products Company Inc Tamperproof overcap for a valved pressure-loaded container
US3480184A (en) * 1967-07-20 1969-11-25 Henry Richard Landis Protective closure for aerosol containers
US3662915A (en) * 1970-10-08 1972-05-16 Dougherty Bros Tamper proof package
US3917101A (en) * 1971-04-22 1975-11-04 Ware Fuse Corp Outlet box and method of making the same
US3888383A (en) * 1973-05-07 1975-06-10 Bowater Packaging Ltd Container having a tamperproof closure
US3927796A (en) * 1975-04-16 1975-12-23 Harvey B Whitehouse Container and closure therefor
US4347940A (en) * 1981-04-10 1982-09-07 The Continental Group, Inc. Lever-off tamper-indicating composite closure
EP0063001A1 (fr) * 1981-04-10 1982-10-20 The Continental Group, Inc. Fermeture complexe de garantie à ouvrir avec un levier
WO1982003613A1 (fr) * 1981-04-10 1982-10-28 Continental Group Couvercle de fermeture composite a levier d'indication d'alteration
US4962864A (en) * 1988-04-27 1990-10-16 Clayton Corporation Tamper-evident aerosol cap
US4942977A (en) * 1988-12-08 1990-07-24 Hidding Daniel P Breakaway tamper evident cover
US5722568A (en) * 1996-09-13 1998-03-03 Summit Packaging Systems, Inc. Tamper-evident aerosol cap
US6070765A (en) * 1998-06-17 2000-06-06 Delta Industries, Inc. Tampering indicating cover for aerosol valve
NL1010681C2 (nl) * 1998-11-30 2000-05-31 Ten Cate Plasticum Tilburg B V Combinatie van een bus en een op de bus geplaatste kap en een werkwijze voor het tegen oneigenlijk gebruik voorafgaande aan verkoop beveiligen van een dergelijke combinatie.
US20080078736A1 (en) * 2006-09-29 2008-04-03 Clayton Corporation Tamper evident cover for an aerosol can
USD740661S1 (en) * 2012-01-20 2015-10-13 Gateway Plastics, Inc. Closure with integrated dosage cup

Also Published As

Publication number Publication date
NL255172A (fr) 1900-01-01
GB958503A (en) 1964-05-21
DE1176505B (de) 1964-08-20
CH364706A (fr) 1962-09-30
NL103978C (fr) 1900-01-01

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