US3744675A - Easily openable sealed plastic closure - Google Patents

Easily openable sealed plastic closure Download PDF

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Publication number
US3744675A
US3744675A US00149144A US3744675DA US3744675A US 3744675 A US3744675 A US 3744675A US 00149144 A US00149144 A US 00149144A US 3744675D A US3744675D A US 3744675DA US 3744675 A US3744675 A US 3744675A
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United States
Prior art keywords
plastic
abutments
cover
arms
line
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Expired - Lifetime
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US00149144A
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English (en)
Inventor
J Song
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Individual
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Individual
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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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/10—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
    • B65D47/106—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures with devices for removing frangible parts of the pouring element or of its closure
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/12—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
    • B65D47/14—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures and closure-retaining means

Definitions

  • a dust cover is formed of plastic and is hinged to the main cover of plastic by an integral strap.
  • the main body has a dispensing opening.
  • the dust cover has downwardly extending flanges fitting about the main body with detents serving to releasably hold the'two together. These flanges restrict the movement of the dust cover with respect to the main body except by a a movement in a single direction.
  • Two spaced locks are formed by integral arms on the body which engage abutments on the dust'cover to normally preventmovement of the dust cover in the opening direction.
  • the principal object of the present invention is to provide an alternative embodiment, which incorporates the novel concepts of the aforesaid patent, while avoiding the operational problem that was encountered in connection with the embodiment of the invention as disclosed in the patent.
  • the pulling force which must be applied to the handle to obtain a separation is in a direction substantially normal to the surface of the cap. This isthe direction (as oriented with respect to the cap) that individuals thought they should pull the handle of the previous embodiment.
  • the dust cap is held in place by a set of spaced locks which are so arranged as to be substantially impossible to be operated by the limited extent of finger dexterity that a child will have.
  • These locks require several operations to be performed simultaneously and, therefore, a significant amount of manual dexterity; however, that which is not beyond the capabilities of the average adult.
  • FIG. 1 is a perspective view of an embodiment of the invention with the dust cap closed;
  • FIG. 2 is a perspective view of the embodiment of FIG. 1 with the dust cap raised;
  • FIG. 3 is an enlarged partial plan view as seen at line 3-3 of FIG. 2;
  • FIG. 6 is an enlarged fragmentary section as seen at line 6-6 of FIG. 5;
  • I FIG. 7 is an enlarged partial section as viewed at line 7-7 of FIG. 3;
  • FIG.'8 is an enlarged partial section as viewed at line 8--8.of FIG. 3;
  • FIG. 9 is an enlarged partial section as viewed at line 9-9 of FIG. 7;
  • FIG. 10 is a perspective view of an alternative embodiment having spaced locks for the dust cap
  • FIG. 11 is an end view as seen at line 11-11 of FIG. 10;
  • FIG. 12 is a view corresponding to FIG. 11 but showing the unlocking of the cap;v and FIG. 13 is a perspective view showing the dust cap partially raised.
  • FIGS. 1 and 2 there is .a body, generally 15, which is secured to the top of a container 16.
  • a dust cap, generally 17, is secured to the body 15 by an integral hinge l8.
  • Detent means are formed by projections 19 on the body which interengage with projections 20 on the cap 17 to releasably hold the two in the closed position illustrated in FIG. 1. By applying a force upwardly on the cap in the FIG. 1 position, the projections slip past each other to allow movement to the FIG. 2 open position.
  • the body, cap, hinge, etc. are molded of plastic.
  • the body 15 includes a top wallarea 22 within which is a removable closure 23 defined by .a score line24.
  • score line is herein applied to a line of areduced thickness of the material, whether it :isproduced by cutting, molding, etc.
  • the top wall .area also extends out to formthe base .25 of aspoutfor pouring purposes.
  • a projection 26 and handle27 are'integral with therclosure part 23.
  • the cap 17 has an outer flange3l which, when the bodyand cap are mated, fits about the rim .28 of the body. At the distal ends of flange 31 is a wall'32 which closes the end of the pouring spout. A :ring .33 .fits within the rim 28 of the body when the capis closedon the body.
  • this embodiment includes two additional locks.
  • One of these isdefinedby spacedprojections 34 on the cap 17' definingca pair ofabutments and an arm 35 on the body which arm has a head forming abutments 36.
  • the arm In the locked position the arm extends between the two spaced abutments 34 with the abutments on the arm in contact with the two abutments 34.
  • the lock on the other side is similarly formed by projections 37 with an arm 38 extending therebetween and having a head forming abutments 39.
  • FIGS. 10-13 The embodiment of FIGS. 10-13 is intended to provide a child-proof feature. It is based on the knowledge that the finger dexterity of a young person is nowhere near that of an average adult. Yet, a child is likely to be attracted to the operation of opening a container by removing a tear type closure, having seen the adults do it. Upon seeing such a container in a store with the container being relatively accessible, there is great temptation for a child to proceed to open the containers and this is not beyond the accomplishments of the child with the use of the invention of my prior patent on a plastic container. As a consequence, there is a need to child-proof the container. I
  • the rim 28 of the body nests between ring 33 and outer flange 31 of the dust cap. This restricts the opening movement of the dust cap to a single direction away from the body.
  • Each of the three locks impedes the movement of the dust cap away from the body in this single direction.
  • the two spaced locks must be unlatched by movements of each in a direction opposite to that of the movement ofthe other.
  • one lock must be moved by aforce applied in the direction indicated by arrow 40, and the other must be moved by a force applied in the direction indicated by arrow 41.
  • the plastic is somewhat resilient so that the arms 35, 38 can be moved; however, that resiliency will hold the arms in the position illustrated in FIGS. 10 and 11 unless they are restrained in the displaced position illustrated in FIG. 12. While the two side locks are held in their respective unlocked position, a force must be simultaneously applied to the dust cap in the direction indicated by the arrow 42 to separate the latches formed by projections 19, 20. While this latter could be a friction fit, it is preferred that detent type latches are employed. This requirement that three different operations be performed at once in order to raise the cap will normally suffice to defeat a young child from obtaining access to the handle 27 of the sealed closure. This protection is most important with sealed closures because it is readily apparent to the purchaser that the closure has been tampered with and the purchaser will not then'take the item.
  • the score line that defines the closure23 to be removed leaves a thin section 46 which is removed or severed by tearing. In order to get the tearing started,
  • this section 46 is made a contiguous part of a preceding
  • the two thin sections 47 merge into a single thin lead-in section 50.
  • the thinness in this instance is formed by the mold projecting in from each side.
  • the distal end of the lead-in section 50 slants rearwardly and downwardly, as indicated at 51, to form, in effect, a point at the edge where the lead-in 50 meets the main surface 22.
  • Above the lead-in section 50 is a grad ual enlargement 52.
  • a handle 53 forms a part of the abutment 26.
  • the pull required to commence the tearing is in a generally upward direction (substantially normal to the upper face 22 of the body). This is the direction that exeprience has shown users expect to pull in order to achieve a separation of the closure from the remainder of the body. It was because of their efforts to pull in thisdirection that resulted in their failing to operate the embodiment illustrated in the aforementioned patent, since a pull in that relative direction was not the pull required in the described embodiment in order to commence a tearing of the score line.
  • said wall area having an outer face, said outer face having a portion along one side of said score line with said portion being contiguous with the score line and on the opposite side of the score line from the closure part, said portion being generally planar with the closure part, a projection integral with the closure part of said wall area and having a portion thereof spaced outwardly from said outer face at said one side, a part of said score line, including said point, being between said portion of said projection and said portion of said outer face, said handle being secured to said projection.
  • said locking means including two arms each forming a part of an individual lock and resiliently urged to the locking positions, said arms being movable against said urging to respective unlocking position, said lock means being constructed so that each arm must be moved in a different direction from the other in order to unlock the respective lock, said locking means also including detent means connecting the cover and the body and requiring a force to be applied to the cover and body to separate the two, whereby at least three different actions must be simultaneously performed to remove the cap from the body thereby protecting said handle against being accessible except to someone having significant manual dexterity.
  • a plastic closure arrangement for a container wherein there is a plastic body part defining a dispensing'opening, a plastic dust cap part fitting on said body and covering said dispensing opening, means preventing the separation of said parts except by movement in a given direction, and a releasable lock holding said parts against movement in said direction, the improvement wherein said releasable lock comprises:
  • detent means releasably connecting the cap part and the body part and holding the two together even after the lock means has been released, whereby while holding the lock means released an additional force must be simultaneously applied to disconnect the detent means and obtain a separation of the dust cap part from the body part.
  • a plastic closure arrangement comprising a plastic body having an area defined by a score line which area can be removed by tearing along the score line to leave a dispensing opening, said body including a handle attached to said area, a plastic dust cover over said body and the handle thereof, and releasable locking means connecting the dust cover and the body, said locking means including two arms each forming a part of an individual lock and resiliently urged to the locking positions, said arms being movable against said biasing to respective unlocking position, said locking means being constructed so that each arm must be moved in a different direction from the other in order to unlock the respective lock, said locking means also including detent means connecting the cover and the body and requiring a force to be applied to the cover and body to separate the two, whereby at least three different actions must be simultaneously performed to remove the cap from the body thereby protecting said handle against being accessible except to someone having significant manual dexterity.
  • said body has two side walls, said cover having two side walls each adjacent a respective side wall of the body thereby defining two pairs of side walls with each pair consisting of one body side wall and one cover side wall, each arm extending outwardly from one side wall of each pair respectively and being normally in juxtaposition to the exterior of the other side wall of the respective pair, said other side wall of each pair having external spaced abutments positioned at opposite sides of the respective arm with the proximal end of said arm being at one side of said abutments and the distal end of said arm being at the other side of said abutments, each arm having projections on its distal end, which projections overlie the respective abutments.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US00149144A 1971-06-02 1971-06-02 Easily openable sealed plastic closure Expired - Lifetime US3744675A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14914471A 1971-06-02 1971-06-02

Publications (1)

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US3744675A true US3744675A (en) 1973-07-10

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Application Number Title Priority Date Filing Date
US00149144A Expired - Lifetime US3744675A (en) 1971-06-02 1971-06-02 Easily openable sealed plastic closure

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US (1) US3744675A (enExample)
JP (1) JPS549556B1 (enExample)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998354A (en) * 1975-03-31 1976-12-21 Song John S Reusable sealed plastic cover
US4241855A (en) * 1979-04-16 1980-12-30 Kikkoman Foods, Inc. Flow controlling pouring spout
EP0042739A1 (en) * 1980-06-19 1981-12-30 Liqui-Box Corporation Finger-actuated slideable dispensing valve
USD278312S (en) 1983-03-11 1985-04-09 General Foods Corporation Dispensing closure
US4568005A (en) * 1983-12-29 1986-02-04 General Foods Corporation Snap-on closure for bottles
US4852770A (en) * 1987-12-31 1989-08-01 Specialty Packaging Licensing Co. Child-resistant dispensing closure
US5174465A (en) * 1991-03-05 1992-12-29 Cap Snap Co. One-piece fitment and cap with tamper-evident band
USD342898S (en) 1991-05-22 1994-01-04 Imperial Chemical Industries Plc Pouring device for liquid
US5348184A (en) * 1991-03-05 1994-09-20 Portola Packaging, Inc. Unitary tamper-evident fitment and closure assembly
US5865354A (en) * 1996-10-16 1999-02-02 Lipton, Division Of Conopco, Inc. Easy open dispensing cap
US20040007595A1 (en) * 2002-07-12 2004-01-15 Gene Stull Secure lock closure
US20060266773A1 (en) * 2003-04-18 2006-11-30 Mayex Usa Kft. Dispensing cap
US20140117040A1 (en) * 2006-04-28 2014-05-01 James Alexander Corporation Multi-chambered dispenser and process
USD847633S1 (en) 2017-01-05 2019-05-07 Silgan White Cap LLC Closure
US11292643B2 (en) * 2018-10-31 2022-04-05 Guala Pack S.P.A. Closure for a spout of a flexible thin-walled package
USD991034S1 (en) * 2022-09-21 2023-07-04 Shenzhen Kaduo Industrial Co., Ltd. Bottle stopper

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS455200Y1 (enExample) * 1967-02-06 1970-03-11

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998354A (en) * 1975-03-31 1976-12-21 Song John S Reusable sealed plastic cover
US4241855A (en) * 1979-04-16 1980-12-30 Kikkoman Foods, Inc. Flow controlling pouring spout
EP0042739A1 (en) * 1980-06-19 1981-12-30 Liqui-Box Corporation Finger-actuated slideable dispensing valve
USD278312S (en) 1983-03-11 1985-04-09 General Foods Corporation Dispensing closure
US4568005A (en) * 1983-12-29 1986-02-04 General Foods Corporation Snap-on closure for bottles
US4852770A (en) * 1987-12-31 1989-08-01 Specialty Packaging Licensing Co. Child-resistant dispensing closure
US5174465A (en) * 1991-03-05 1992-12-29 Cap Snap Co. One-piece fitment and cap with tamper-evident band
US5348184A (en) * 1991-03-05 1994-09-20 Portola Packaging, Inc. Unitary tamper-evident fitment and closure assembly
USD342898S (en) 1991-05-22 1994-01-04 Imperial Chemical Industries Plc Pouring device for liquid
US5865354A (en) * 1996-10-16 1999-02-02 Lipton, Division Of Conopco, Inc. Easy open dispensing cap
US20040007595A1 (en) * 2002-07-12 2004-01-15 Gene Stull Secure lock closure
WO2004007976A3 (en) * 2002-07-12 2004-06-24 Stull Technologies Secure lock closure
US6880729B2 (en) * 2002-07-12 2005-04-19 Stull Technologies Secure lock closure
EP1521717A4 (en) * 2002-07-12 2005-08-24 Stull Technologies SAFETY LATCH CLOSURE
US20060266773A1 (en) * 2003-04-18 2006-11-30 Mayex Usa Kft. Dispensing cap
US7878373B2 (en) * 2003-04-18 2011-02-01 Mayex Usa Kft. Dispensing cap
US20140117040A1 (en) * 2006-04-28 2014-05-01 James Alexander Corporation Multi-chambered dispenser and process
US10464719B2 (en) * 2006-04-28 2019-11-05 James Alexander Corporation Multi-chambered dispenser and process
USD847633S1 (en) 2017-01-05 2019-05-07 Silgan White Cap LLC Closure
USD871904S1 (en) 2017-01-05 2020-01-07 Silgan White Cap LLC Closure
USD920112S1 (en) 2017-01-05 2021-05-25 Silgan White Cap LLC Closure
US11292643B2 (en) * 2018-10-31 2022-04-05 Guala Pack S.P.A. Closure for a spout of a flexible thin-walled package
USD991034S1 (en) * 2022-09-21 2023-07-04 Shenzhen Kaduo Industrial Co., Ltd. Bottle stopper

Also Published As

Publication number Publication date
JPS549556B1 (enExample) 1979-04-25

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