US3674295A - Pressure operated fastening means for containers - Google Patents

Pressure operated fastening means for containers Download PDF

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Publication number
US3674295A
US3674295A US35664A US3674295DA US3674295A US 3674295 A US3674295 A US 3674295A US 35664 A US35664 A US 35664A US 3674295D A US3674295D A US 3674295DA US 3674295 A US3674295 A US 3674295A
Authority
US
United States
Prior art keywords
fastening means
male element
projections
male
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
US35664A
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English (en)
Inventor
Pietro Padovani
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3674295A publication Critical patent/US3674295A/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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/32—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for eggs
    • B65D85/324—Containers with compartments made of pressed material
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/38—Plastic latch parts
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602—Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y10T24/45775—Receiving member includes either movable connection between interlocking components or variable configuration cavity having resiliently biased interlocking component or segment
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0801—Multiple
    • Y10T292/0814—Double acting
    • Y10T292/0817—Spring arm
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0876—Double acting
    • Y10T292/088—Spring arm
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/68—Keepers

Definitions

  • ABSTRACT A pressure operated fastening means for container comprising hinged male and female halves, the male half comprising a cylindrical stub chamfered at its end portion and provided with hemispherical projections, which may be hollow or in the form of solid spherical pips, positioned generally midway between the head and the foot of the stub.
  • the female half includes a circular ring of relatively greater thickness than the adjoining lateral wall, with insertion of the male half during fastening subjecting the projections to compression by the circular ring, with the projections upon further insertion forcing the relatively thinner lateral wall inwardly to effect the desired fastening,
  • the invention relates to a pressure-operated fastening means for containers comprising two hinged halves produced integrally with the fastening elements by vacuum moulding a thin sheet of thermoplastic material.
  • a pressure-operated fastening means similar to that to be described is known in which the male element is connected to its supporting base by means of a frusto-conical collar having a very sharp taper extending towards the foot of the male element, which collar has to be compressed in this zone in the radial direction through the action of one or more pips projecting from the body of the male element.
  • the collar connecting the element to the base and the radial compression of the foot of the male element permit axial movement of the male element when the force necessary for pressing one of the fastening elements on to the other is applied to the male element, thus rendering it difficult to effect the fastening.
  • edges or lobes of the pips on the male element become worn by the walls of the female element when they move into contact with each other during the closing and opening of the container.
  • the male and female elements are locked together as a result of the tongues bending under the action of the teeth, which tongues have to return to their normal position after the fastening has been effected.
  • Such closure means which necessitate the use of material having good elastic properties are unable to stand up to repeated use, and have been made from P.V.C., polystyrol or the like sheet material.
  • the main object of the present invention is to provide fastening elements which resist the tensile forces applied to them in opposite directions, without deteriorating or flattening as a result of permanent deformation of one or both fastening elements as a consequence of their being repeatedly used even if the sheet material employed e.g. P.V.C., polystyrol and the like does not possess a high degree of elasticity.
  • the female element of the fastening means structures which resist compression while being able to yield elastically, the elements projecting therefrom having zones which cause the male element to yield elastically during the operations of locking the fastening elements together; the female element also has elastically yielding portions for accommodating the projecting elements when they pass from the compressed position to the normal position in which the fastening is effected.
  • FIG. 1 is a plan view of the male element
  • FIG. 2 is a side view of the male element
  • FIG. 3 is a median section through the male and female elements prior to their being locked together
  • FIG. 4 is a section similar to the preceding one showing the phase in which the male element is compressed by part of the female element;
  • FIG. 5 is a section similar to that shown in FIG. 3 and FIG. 4, and shows the male and female elements during the phase in which the female element is deformed as a result of pressure exerted by the male element;
  • FIG. 6 is a side-elevation similar to that of FIG. 2 and showing a male element of different form from that seen in FIG. 2.
  • FIGS. 1 and 3 the same reference numerals are used for like or equivalent parts. It will be seen from FIGS. 1 and 3 that the male element projecting from the surface of a hinged half of the container is supported on a hollow frusto-conical base and is constituted by a hollow cylindrical stub 9, which is sharply chamfered at its end 10 which is closed by a disc 1 1.
  • this terminal portion 10 and the disc 11 will hereinafter be referred to as the head of the male element, the purpose of which is to facilitate insertion of the male element into the female element by virtue of the arrangement just described.
  • the female element comprises a frusto-conical hollow portion 16 having a base 18 and of a depth corresponding to the height of the male element. Said hollow portion communicates by way of a ring 17 with its frusto-conical support 15 which projects from the surface 14 of the hinged half of the container (see FIG. 3).
  • the projections 12 do not suffer any deformation and the pressure applied to them pushes them in the direction of the median longitudinal axis of the zone 9. Consequently, the circular bases 12' of the projections 12, subjected to pressure, cause the side wall of the cylindrical stub 9 to curve inwards as can be clearly seen in FIG. 4.
  • This inward curvature of the portion 9 caused by the circular bases 12' of the projections 12 is of a completely elastic nature even if the material used is P.V.C., polystyrol or similar material, and it is due to the resilience of the zone in which the projections 12 are located and to the circular line of their base 12'.
  • the ring 17 is in fact subjected to slight stretching in the zones corresponding to those extending over the element 9 between two successive projections 12, and undergoes slight outward curvature at points corresponding to each projection 12.
  • ribs 13 extend from the base 12' of each projection 12 to the foot of the support 8 of the male element as can be seen in FIGS. 1 to 6. Referring particularly to FIG. 6, it will be seen that the male element illustrated therein because of its height can accommodate projections 12 and 12", of the kind previously described, which are located at different levels.
  • This feature enables a two-level fastening to be obtained which can be particularly useful in some cases, and it is clear that the corresponding female element will have to be of a height corresponding to that of the male element.
  • Pressure-operated fastening means for containers comprising two hinged halves, which closure means is produced integrally with the container by vacuum moulding a thin sheet of thermoplastic material such as polystyrol, P.V.C., and the like, said means being constituted by a recess contained in a hollow frusto-conical part projecting from the surface of one half of the container, which recess adjoins a circular ring having a thickness greater than the lateral wall of the recess and than the lateral wall of the part constituting the support for the female element, the means also comprising a male element formed by a hollow cylindrical stub, which is sharply chamfered at its end portion and is closed by a circular disc and is located on a hollow frusto-conical base projecting from the surface of the other half of the container characterized in that hemispherical projections are provided on the male element at roughly midway between its head and foot, and in that the female element is outwardly curved.
  • thermoplastic material such as poly
  • the fastening means according to claim 1 characterized in that the ring connecting the female element to its frustoconical support is of a thickness approximately equal to the maximum thickness of the half of the container.
  • the fastening means according to claim 1 characterized in that the thickness of the female element diminishes from the ring, joining it to the support, towards its base.
  • the fastening means according to claim 1 characterized in that the male element has reinforcing'ribs extending from the base of each hemispherical projection to the foot of the support of the male element.
  • the fastening means according to claim 1 characterized in that the hemispherical projections are disposed in at least two different parallel planes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Closures For Containers (AREA)
US35664A 1969-05-10 1970-05-08 Pressure operated fastening means for containers Expired - Lifetime US3674295A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6123769 1969-05-10

Publications (1)

Publication Number Publication Date
US3674295A true US3674295A (en) 1972-07-04

Family

ID=11292312

Family Applications (1)

Application Number Title Priority Date Filing Date
US35664A Expired - Lifetime US3674295A (en) 1969-05-10 1970-05-08 Pressure operated fastening means for containers

Country Status (8)

Country Link
US (1) US3674295A (enrdf_load_stackoverflow)
BE (1) BE750146A (enrdf_load_stackoverflow)
CH (1) CH505007A (enrdf_load_stackoverflow)
DE (1) DE2021350A1 (enrdf_load_stackoverflow)
FR (1) FR2042536B1 (enrdf_load_stackoverflow)
GB (1) GB1251173A (enrdf_load_stackoverflow)
IL (1) IL34495A (enrdf_load_stackoverflow)
NL (1) NL7006783A (enrdf_load_stackoverflow)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036358A (en) * 1976-11-02 1977-07-19 Philip Kelley Clear view coin wrap
US4359133A (en) * 1980-03-28 1982-11-16 Motorola, Inc. Resilient support for electronic component
US4460087A (en) * 1982-09-30 1984-07-17 Westvaco Corporation Core plug
US4547417A (en) * 1981-06-04 1985-10-15 Westvaco Corporation Core plug
US4956942A (en) * 1989-06-09 1990-09-18 Textron Inc. Window adjustment mechanism
US20040107551A1 (en) * 2002-12-09 2004-06-10 Lipniarski David J. Indented female blow-molded connector
US20040107598A1 (en) * 2002-11-28 2004-06-10 Lg Electronics, Inc. Dryer
US20050097714A1 (en) * 2002-12-09 2005-05-12 Lipniarski David J. Indented female blow-molded connector and male connector and method
US20050215104A1 (en) * 2002-12-09 2005-09-29 Lipniarski David J Indented female blow-molded connector and male connector and method
USD675517S1 (en) 2011-07-29 2013-02-05 Dart Container Corporation Container
US8608008B2 (en) 2010-08-26 2013-12-17 Dart Container Corporation Tamper evident container
US20140284346A1 (en) * 2013-03-21 2014-09-25 Placon Corporation Tamper Resistant Container
US8939674B2 (en) 2011-12-28 2015-01-27 Custom-Pak, Inc. System and method for assembling blow molded parts without use of fasteners
US9624009B2 (en) 2010-08-26 2017-04-18 Dart Container Corporation Tamper evident container
US9926118B2 (en) * 2015-12-08 2018-03-27 Inline Plastics Corp. Child-resistant containers
US10220985B2 (en) 2016-10-28 2019-03-05 Genpak, Llc Tamper-evident container with a tabbed hinge
US10351310B2 (en) 2016-10-28 2019-07-16 Genpak, Llc Tamper-evident container with a bump near a tabbed hinge
US10889413B2 (en) 2016-10-28 2021-01-12 Genpak, Llc Tamper-evident container with a tab extending beyond a hinge
US10894635B2 (en) 2016-10-28 2021-01-19 Genpak, Llc Tamper-evident container with a wide tab extending beyond a hinge

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5888880A (en) * 1979-06-11 1980-12-18 Steelcase Inc. Trim fastening arrangement
GB8920370D0 (en) * 1989-09-08 1989-10-25 Autobar Vendabeka Ltd Fastening device for boxes or packs for packaging eggs,fruit or other articles
US5046659A (en) * 1990-11-13 1991-09-10 Mobil Oil Corporation Latching structure for food container
DE4242393A1 (de) * 1992-12-09 1994-06-16 Oekopack Gmbh Wegwerfbare Verpackungseinheit für Flaschen
DE102013104262A1 (de) * 2013-04-26 2014-11-13 Miele & Cie. Kg Verrastungssystem für ein Haushaltgerät und Hausgerät

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036358A (en) * 1976-11-02 1977-07-19 Philip Kelley Clear view coin wrap
US4359133A (en) * 1980-03-28 1982-11-16 Motorola, Inc. Resilient support for electronic component
US4547417A (en) * 1981-06-04 1985-10-15 Westvaco Corporation Core plug
US4460087A (en) * 1982-09-30 1984-07-17 Westvaco Corporation Core plug
US4956942A (en) * 1989-06-09 1990-09-18 Textron Inc. Window adjustment mechanism
US20040107598A1 (en) * 2002-11-28 2004-06-10 Lg Electronics, Inc. Dryer
US6954992B2 (en) * 2002-11-28 2005-10-18 Lg Electronics Inc. Dryer
US20040107551A1 (en) * 2002-12-09 2004-06-10 Lipniarski David J. Indented female blow-molded connector
US20050070167A1 (en) * 2002-12-09 2005-03-31 Lipniarski David J. Indented female blow-molded connector
US20050097714A1 (en) * 2002-12-09 2005-05-12 Lipniarski David J. Indented female blow-molded connector and male connector and method
US20050215104A1 (en) * 2002-12-09 2005-09-29 Lipniarski David J Indented female blow-molded connector and male connector and method
US7234780B2 (en) 2002-12-09 2007-06-26 Confer Plastics, Inc. Indented female blow-molded connector and male connector and method
US7275289B2 (en) 2002-12-09 2007-10-02 Confer Plastics Inc. Indented female blow-molded connector and male connector and method
US20080047113A1 (en) * 2002-12-09 2008-02-28 Lipniarski David J Indented female blow-molded connector and male connector and method
US7526841B2 (en) 2002-12-09 2009-05-05 Confer Plastics, Inc. Indented female blow-molded connector and male connector and method
US9624009B2 (en) 2010-08-26 2017-04-18 Dart Container Corporation Tamper evident container
US9409683B2 (en) 2010-08-26 2016-08-09 Dart Container Corporation Tamper evident container
US8608008B2 (en) 2010-08-26 2013-12-17 Dart Container Corporation Tamper evident container
US8939307B2 (en) 2010-08-26 2015-01-27 Dart Container Corporation Tamper evident container
US9365331B2 (en) 2010-08-26 2016-06-14 Dart Container Corporation Tamper evident container
USD697795S1 (en) 2011-07-29 2014-01-21 Dart Container Corporation Container
USD675517S1 (en) 2011-07-29 2013-02-05 Dart Container Corporation Container
USD686064S1 (en) 2011-07-29 2013-07-16 Dart Container Corporation Container
US8939674B2 (en) 2011-12-28 2015-01-27 Custom-Pak, Inc. System and method for assembling blow molded parts without use of fasteners
US20140284346A1 (en) * 2013-03-21 2014-09-25 Placon Corporation Tamper Resistant Container
US9676527B2 (en) * 2013-03-21 2017-06-13 Placon Corporation Tamper resistant container
US9926118B2 (en) * 2015-12-08 2018-03-27 Inline Plastics Corp. Child-resistant containers
US10543967B2 (en) 2015-12-08 2020-01-28 Inline Plastics Corp. Child-resistant containers
US10220985B2 (en) 2016-10-28 2019-03-05 Genpak, Llc Tamper-evident container with a tabbed hinge
US10351310B2 (en) 2016-10-28 2019-07-16 Genpak, Llc Tamper-evident container with a bump near a tabbed hinge
US10889413B2 (en) 2016-10-28 2021-01-12 Genpak, Llc Tamper-evident container with a tab extending beyond a hinge
US10894635B2 (en) 2016-10-28 2021-01-19 Genpak, Llc Tamper-evident container with a wide tab extending beyond a hinge

Also Published As

Publication number Publication date
BE750146A (fr) 1970-10-16
NL7006783A (enrdf_load_stackoverflow) 1970-11-12
CH505007A (it) 1971-03-31
IL34495A (en) 1973-06-29
GB1251173A (enrdf_load_stackoverflow) 1971-10-27
FR2042536A1 (enrdf_load_stackoverflow) 1971-02-12
FR2042536B1 (enrdf_load_stackoverflow) 1974-02-01
DE2021350A1 (de) 1971-02-04
IL34495A0 (en) 1970-07-19

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