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Publication numberUS3217951 A
Publication typeGrant
Publication dateNov 16, 1965
Filing dateMar 1, 1962
Priority dateMar 30, 1961
Also published asDE1832772U
Publication numberUS 3217951 A, US 3217951A, US-A-3217951, US3217951 A, US3217951A
InventorsHans Paal
Original AssigneeFr Hesser Maschinenfabrik Ag F
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Closure means for containers
US 3217951 A
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Description  (OCR text may contain errors)

NOV. 16, 1965 P CLOSURE MEANS FOR CONTAINERS Filed March 1, 1962 INVENTOR .699; BQAL United States Patent "cc 3,217,951 CLOSURE MEANS FOR CONTAINERS Hans Paal, Waiblingen, Wurttemberg, Germany, assignor to Firma Fr. Hesser Maschinenfabrik-Aktiengesellschaft, Stuttgart-Bad Cannstatt, Germany, a corporation of Germany Filed Mar. 1, 1962, Ser. No. 176,678 Claims priority, application Germany, Mar. 30, 1961, 1-1 37,686 11 Claims. (Cl. 222-528) This invention relates to a new and improved closure and dispensing arrangement for containers and the like.

The present invention contemplates the provision of a new and improved closure construction for a rigid container, which includes a tab operative to cover the dispensing opening and joined to the adjacent wall of the container by a heat sealed joint. In this regard, the container wall may be composed of a thermoplastic material, e.g. polyethylene, or coating thereof on cardboard or the like. The tab, in turn, is constructed of flexible material, e.g. aluminum sheet, and may have a similar coating thereon so that a heat sealed joint between the contiguous surfaces thereof is provided. The tab is advantageously pivoted over the opening and tightly secured therein after initial opening simply by displacing the tab into the opening by a thumb or the like.

. Another object of this invention is to provide an inexpensive and trouble-free closure and dispensing means for a container, the container having a raised portion in one wall and having a elongated slotted dispensing opening therein. A generally rectangular tab of flexible material is joined to this raised portion adjacent an end of the.

slot. A heat sealing joint is provided between the tab and container wall which includes an enlarged terminal joint portion at the end of the slot, having a curved edge adjacent the slot, while the other opposed marginal sides of the tab are secured to this wall portion by a relatively narrow heat sealing joint. The tab has a lip at its free end which extends transversely beyond the raised wall portion so that the same is quickly and easily pulled back to the terminal joint portion for initial access. By virtue of the curved terminal joint edge, the flexible tab is advantageously formed in the shape of a longitudinally extending spout for dispensing purposes; and, the container is temporarily closed after initial use simply by pivoting the tab back over the slot for securing the same therein.

.These and still further objects, advantages, and novel features of the present invention will become apparent in the specification and claims, taken in connection with the accompanying drawings.

In the drawings:

FIGURE 1 is a perspective view of the upper end of the container employing the closure means of the present invention;

FIGURE 2 is an elevational section view of the container and closure means in FIGURE 1;

FIGURES 3 and 4 are partial perspective views showing the container positioned for dispensing the contents; and

FIGURE 5 is an elevational section view similar to FIGURE 2 but showing the closure means temporarily secured after initial opening.

Referring now to the drawings, there is shown in FIG- URE 1 a rigid container having upright side walls 1 and a top wall 2 joined thereto. The top wall 2 composed of an overlaying coating of thermoplastic material is of inverted cup-shaped configuration, having a centrally raised wall portion 2a and depressed peripheral wall portion 2b adjacent the side walls 1. The centrally raised wall portion 2a has an elongated or slotted dispensing opening 3,217,951 Patented Nov. 16, 1965 3 for dispensing the contents from the container, as will become apparent.

The wall portion 2a also carries a tab 4 of generally rectangular configuration. This tab 4 is constructed of a flexible material, preferably aluminum foil or sheet, so as to be easily shaped, and has a coating of thermoplastic material on its surface contiguous with the top wall 2. Additionally, the tab 4 has a protruding lip 5 extending beyond the centrally raised wall portion 2a to facilitate a gripping of the same with a persons fingers.

The tab 4 is joined to the top wall 2 adjacent the slotted opening 3 by a heat sealing connection or welding seam joint 6. In this regard the joint 6 includes a terminal joint portion 6a adjacent the end of the slot 3 opposite the lip 5 and covers a relatively wide area so as to constitute a permanent joint. The edge of this terminal joint por-- tion 6a adjacent the slot 3 is curved so that the tab 4 may be bent into a trough-like shape (FIGURE 4) to facilitate dispensing the contents of the free end thereof. Addi tionally, marginal joint lines 6b, also heat sealed, extend from the terminal joint portion along the sides of the tab 4 and the opposite end of the slot 3. This constitutes a temporary seal to initially seal the container for marketing purposes and the like.

Initially, the container is opened simply by gripping the lip 5 of the tab 4 and pulling the tab 4 back to the terminal joint portion 6a, thereby breaking the marginal heat sealing joint lines 612. The container is then tilted in the usual fashion for dispensing the contents through the slot 3. This may be accomplished as shown in FIG- URE 3 by virtue of the fact the tab 4 is pivoted upwardly to dispense the contents from the end of the slot 3 opposite the terminal joint 6a. Alternatively, the tab 4 may constitute a dispensing trough as the same may be curved into the shape of a trough due to the curved edge of terminal joint 6a adjacent the slot 3, as shown in FIGURE 4. After the desired amount of the contents. have been dispensed, the slot 3 is closed, as shown in FIGURE 5, simply by pivoting the tab 4 back over the slot 3 and depressing the flexible tab into the slot 3 to provide an effective closing of the container.

From the foregoing description of the various embodiments of this invention, it is evident that the objects of this invention, together with many practical advantages are successfully achieved. While preferred embodiments of my invention have been described, numerous further modifications may be made without departing from the scope of this invention.

Therefore, it is to be understood that all matters herein set forth or shown in the accompanying drawings are to be interpreted in an illustrative, and not in a limiting sense.

What is claimed is:

1. In combination, a rigid container having a dispensing opening in a raised portion of one wall thereof, and a flexible tab secured to said raised portion all around said opening to sealingly cover said opening, and adapted to be partly separated from said raised portion so as to be hinged to it along a predetermined one of its own edges, which edge is located closely adjacent the rim of said opening, and further adapted, after being separated from said raised portion, selectively to overlay said opening and to be depressed therein so as to releasably and sealingly engage the entire rim of said opening.

2. In combination, a rigid container comprising walls presenting a heat sealable surface, and having a dispensing opening in a raised portion of one wall thereof, and a flexible tab heat sealed to said raised portion all around said opening to sealingly cover said opening, and adapted to be partly separated from said raised portion by breaking the heat seal along the major part of the circumference of said opening so as to be hinged to it along a predetermined one of its own edges, which edge is located closely adjacent the rim of said opening, and further adapted, after being separated from said raised portion, selectively to overlay said opening and to be depressed therein so as to releasably and sealingly engage the entire rim of said opening.

3. The combination defined in claim 2 wherein the walls of said container and said tab on the surface facing said container are coated with a thermoplastic material.

4. In combination, a rigid container having a dispensing opening in a raised portion of one wall thereof, and a flexible tab secured to said raised portion all around said opening to sealingly cover said opening, and at one side extending beyond said raised portion to form a gripping end, and adapted to be partly separated from said raised portion by pulling at said gripping end so as to be hinged to it along an edge opposite to said gripping end, which edge is located closely adjacent the rim of said opening, and further adapted, after being separated from said raised portion, selectively to overlay said opening and to be depressed therein so as to releasably and sealingly engage the entire rim of said opening.

5. The combination defined in claim 4 in which said tab is secured to said raised portion by means of a narrow welding seam and said edge opposite to said gripping end is secured by a relatively wide Welding seam so as to constitute a permanent joint.

6. In combination, a rigid container having a dispensing opening in a raised portion of one wall thereof, and a flexible tab secured to said raised portion all around said opening to sealingly cover said opening, and adapted to be partly separated from said raised portion so as to be hinged to it along a predetermined one of its own edges, which edge is located closely adjacent the rim of said opening and is curved with its concave side facing 5 said opening, so that after partly separating said flexible tab from said raised portion and bending it for substantially 90 around said predetermined edge a pouring spout is formed which is rigid lengthwise by virtue of being concave crosswise, and further adapted, after being separated, selectively to overlay said opening and to be depressed therein so as to releasably and sealingly engage the entire rim of said opening.

7. In combination, a rigid container comprising walls presenting a heat sealable surface, and having a dispensing opening in a raised portion of one wall thereof, and a flexible tab heat sealed to said raised portion all around said opening to sealingly cover said opening, and adapted to be partly separated from said raised portion by breaking the heat seal along the major part of the circumference of said opening so as to be hinged to it along a predetermined one of its own edges, which edge is located closely adjacent the rim of said opening and is curved with its concave side facing said opening, so that after partly separating said flexible tab from said raised portion and bending it for substantially 90 around said predetermined edge a pouring spout is formed which is rigid lengthwise by virtue of being concave crosswise, and further adapted, after being separated, selectively to over lay said opening and to be depressed therein so as to releasably and sealingly engage the entire rim of said opening.

8. The combination defined in claim 7 wherein the Walls of said container and said tab on the surface facing said container are coated with a thermoplastic material.

9. In combination, a rigid Container having a dispensing opening in a raised portion of one wall thereof, and a flexible tab secured to said raised portion all around said opening to sealingly cover said opening, and at one side extending beyond said raised portion to form a gripping end, and adapted to be partly separated from said raised portion by pulling at said gripping end so as to be hinged to it along an edge opposite to said gripping end, which edge is located closely adjacent the rim of said opening and is curved with its concave side facing said opening, so that after partly separating said flexible tab from said raised portion and bending it for substantially around said edge a pouring spout is formed which is rigid lengthwise by virtue of being concave crosswise, and further adapted, after being separated, selectively to overlay said opening and to be depressed therein so as to releasably and sealing engage the entire rim of said opening.

10. The combination defined in claim 9 in which said tab is secured to said raised portion by means of a narrow welding seam and said edge opposite to said gripping end is secured by a relatively wide welding seam so as to constitute a permanent joint.

11. In combination, a rigid container comprising walls being coated with a thermoplastic material at at least one surface, and having a dispensing opening in a raised portion of the upper wall thereof, and a flexible tab coated with a thermoplastic material on its surface facing said raised portion, and heat sealed to said raised portion with a narrow Welding seam along the major part of the circumference of said opening, and with a relatively wide welding seam along the remaining minor part of said circumference to sealingly cover said opening and at the side opposite said relatively wide seam extending beyond said raised portion to form a gripping end, and adapted to be partly separated from said raised portion by pulling at said gripping end to break said heat sealed welding seam along said major part of said circumference so that said tab is hinged to said raised portion along said relatively wide seam which seam is located closely adjacent the rim of said opening and is curved with its concave side facing said opening, so that after partly separating said flexible tab from said raised portion and bending it for substantally 90 around said relatively wide seam a pouring spout is formed which is rigid lengthwise by virtue of being concave crosswise, and further adapted, after being separated, selectively to overlay said opening and to be depressed therein so as to releasably andsealingly engage the entire rim of said opening.

References Cited by the Examiner UNITED STATES PATENTS 1,261,260 4/1918 Meares 222-541 X 1,473,453 11/ 1923 Wunderlich 222-541 X 1,596,638 8/1926 Turpel et a1. 222-541 2,338,604 6/ 1944 Silveyra 2297 X 2,353,521 7/1944 Steffens 222-530 2,617,563 11/1952 Miller 229-7 X 2,715,982 8/1955 Preston 222-541 2,870,935 1/ 1959 Houghtelling 220-53 3,108,708 10/1963 Betner 220-54 FOREIGN PATENTS 613,023 1/1961 Canada.

LOUIS I. DEMBO, Primary Examiner.

LAVERNE D. GEIGER Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1261260 *Sep 29, 1916Apr 2, 1918William Devenish MearesMeans for facilitating the pouring of liquid contents from cans, tins, and the like.
US1473453 *Jan 21, 1922Nov 6, 1923Wunderlich Albert WLiquid container
US1596638 *Oct 9, 1924Aug 17, 1926Johnson Albert OCoffee can or the like
US2338604 *Jan 22, 1942Jan 4, 1944Ricardo SilveyraFlexible or pliable container
US2353521 *Feb 10, 1941Jul 11, 1944Steffens Eugene CMilk bottle cream dispenser
US2617563 *Jan 4, 1946Nov 11, 1952Samuel MillerFoldable dispensing and closure device
US2715982 *Feb 28, 1952Aug 23, 1955Philip D GouldCover with pouring spout incorporated therein
US2870935 *Jan 27, 1955Jan 27, 1959Suzanne Kaaren BlackmerContainer seal
US3108708 *Nov 10, 1959Oct 29, 1963Plastomatic CorpSealed plastic containers
CA613023A *Jan 24, 1961James R WilsonContainer-dispenser
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3275203 *Jul 19, 1965Sep 27, 1966Gutmann & Co FerdLow vapor permeability container closure including push-out tab for forming pour mouth and method for making same
US3292828 *Sep 17, 1964Dec 20, 1966Nat Can CorpEasy opening can end
US3298577 *Oct 1, 1964Jan 17, 1967Chlystun Walter KContainer with pouring spout
US3353738 *Feb 8, 1966Nov 21, 1967Tetra Pak AbPackage having a slit folding line forming a pouring edge
US3371811 *Nov 20, 1964Mar 5, 1968Corning Glass WorksContainer closure
US3871550 *May 29, 1973Mar 18, 1975Continental Can CoPush-in easy opening container
US3889844 *Aug 30, 1973Jun 17, 1975Minnesota Mining & MfgCan closure
US3977591 *Jun 16, 1975Aug 31, 1976Ab ZiristorCover strip for the pouring opening in a packing container
US4516689 *Jun 22, 1984May 14, 1985The Procter & Gamble CompanyEasy open/reclosable container with pouring lip and hold-open feature
US4582216 *Jun 22, 1984Apr 15, 1986The Procter & Gamble CompanyEasy open-reclosable container with pouring lip/drain surface
US4807787 *Oct 27, 1987Feb 28, 1989The Procter & Gamble CompanyEasy-open/reclosure device having deformable pour spout
US4981256 *Mar 19, 1990Jan 1, 1991Lever Brothers CompanyUltrathin carton closure
US8056209Apr 8, 2008Nov 15, 2011Zweigniederlassung Der Huhtamaki Deutschland, Gmbh & Co. KgTubular, especially can-shaped, receptacle for the accommodation of fluids, a method of manufacture and use
US8153216Dec 13, 2002Apr 10, 2012Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. KgPackaging with passage regions and sealing tool for production thereof
US8240546Apr 18, 2005Aug 14, 2012Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. KgFilm packaging having tamper-evident means
US8468782Nov 3, 2005Jun 25, 2013Herrmann Ultraschalltechnik Gmbh & Co. KgMethod for producing a bottle-like or tubular container, particularly a tubular bag, comprising a sealed-in bottom, and a correspondingly produced tubular bag
DE2849756A1 *Nov 16, 1978May 29, 1980Eckes Fa PeterBehaelter
EP0816283A1 *Jul 3, 1997Jan 7, 1998Douglas J. HiddingProtective tamper-evident label and bottle cap
WO2008058579A1 *Aug 9, 2007May 22, 2008Huhtamaki RonsbergContainer, in particular flexible tubular-bag and/or enclosure-like packaging container
Classifications
U.S. Classification222/528, 222/566, 220/265, 229/123.1, 229/125.14, 229/125.19, 222/556
International ClassificationB65D5/70, B65D8/02, B65D47/36, B65D5/72, B65D17/50
Cooperative ClassificationB65D2517/5032, B65D15/08, B65D2517/0037, B65D17/502, B65D5/708, B65D17/16, B65D2517/0029, B65D2517/5051, B65D2517/0061, B65D2517/5083, B65D2517/0079, B65D2517/0083, B65D2517/0013, B65D5/72
European ClassificationB65D17/16, B65D15/08, B65D5/70E, B65D5/72, B65D17/50A1