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Publication numberUS3187983 A
Publication typeGrant
Publication dateJun 8, 1965
Filing dateApr 12, 1963
Priority dateApr 12, 1963
Publication numberUS 3187983 A, US 3187983A, US-A-3187983, US3187983 A, US3187983A
InventorsMendoza Jose N
Original AssigneeMendoza Jose N
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Cellophane wrapper tearer
US 3187983 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

June 8, 1965 J. N. MENDOZA CELLOPHANE WRAPPER TEARER Filed April 12, 1963 Illilllllillllfll l l INVENTOFI/ United States Patent 3,187,983 CELLOPHANE WRAPPER TEARER Jose N. Mendoza, P.0. Box 2797, Sampaloc,

. Manila, Philippines Filed Apr. 12, 1963, Ser. No. 272,732 2 Claims. (Cl. 229-51) This invention relates to a tearer of severable Wrappers, and more particularly, to a tearer that can be moved in any direction of motion.

It is a well known fact that severable wrappers of packed goods, particularly wrappers made of Cellophane and other cellulose sheet material, aredifiicult to tear, not only because of the nature of the material itself, but also because said wrappers are carefully pasted and air-tight so as to preserve the original properties of the commodity contained therein. To remedy such a situation, various devices for opening or tearing severable wrappers were introduced. However, with the exception of one or two, said opening deviceshave a loose end or a protruding member, which aside from being an obstruction to the wrapping of the packed goods, is also an obstacle to the actual handling of the wrapped package, especially, to the gross packing of the wrapped packages. Moreover, said loose end or protruding member may be pulled unintentionally or accidentally, creating an opening on the wrap per. Such an opening is enough to cause damage to some packed goods if consumption of said goods is put off to a later time. There are, however, several tearing or opening devices which do not have a loose endor protruding accessory, but the manipulation of said devices tends to mar the material enclosed within the package due to the effort involved in the operation. Furthermore, said devices are applicable only to packed goods with plain paper packages.

It is therefore the main object of the present invention to provide a practical and convenient device for facilitat-. ing the tearing of wrappers of packed goods with severable wrapper without the use of a loose end or a protruding accessory.

Another object of this invention is to provide a wrapper tearer of packed goods with severable wrapper, which, aside from being efficient in tearing said wrapper, can be operated in such a manner that it will not mar the material enclosed within the package. e

A further object of this invention is to provide a wrap- .per tearer for packed goods with severable wrapper, which can be easily embodied in such a package. Said tearer will not be an obstruction to the process of wrapping, nor to the actual handling or gross packing of the wrapped package.

' Still a further object of this invention is to provide a tained therein, said tearer will serve as a lasting form of advertisement.

Still another object of this invention is to provide a wrapper tearer of packed goods with severable wrapper, which will not disturb the sealed condition of the package.

Other objects and advantages of this invention will be understood by reference to the following specification and accompanying drawings wherein the tearer is illustrated in the form of a star. It should be understood, however,

3,187,983 Patented June 8, 1965 ice that said invention of a tearer may be of any shape and design and the present disclosure of a star as tearer is merely by way of example.

FIG. 1 is a plan view of the tearer in the form of a star.

FIG. 2 is an exaggerated side view of the tearer placed in-between the wrapper and the surface of the paper board container.

FIG. 3 is the plan view of the tearer showing a different form of attachment.

FIG. 4 is an exaggerated side view of the tearer shown in FIG. 3 placed in-between the wrapper and the surface of the container.

FIG. 5 is the plan view of the tearer showing still another form of attachment.

FIG. 6 is an exaggerated side view of the tearer shown in FIG. 5 with a paper board base and a paper strip, placed in-between the wrapper and the surface of the container.

FIG. 7 is the plan view of a paper strip used as a form of attachment used in FIGURES 6 and 7.

FIG. 8 is the perspective view of the cellophane wrapped package showing the tearer in place.

As illustrated in FIG. 1, the tearer is a star-shaped hard material with the elevated outer section 2 as defined by scored circle 3, showing enclosed section 4 and the small section 5 at which point the bottom 6 of the tearer 1 is slightly pasted .to the surface 7 of the package 8 as shown inFIG; 2. a

FIG. 2 illustrates the tearer 1 showing the elevated section 2 creating a point of weakening 9 on the wrapper 10 between the tearer 1 and the package 8.

The tearer 1 is of a hard material characterized by having slightly serrated and burred peripheral cutting edges 11 to facilitate the rupturing of the wrapper 10.

The small section 5 at the bottom of the tearer 1 is slightly pasted on the surface 7 of the package 8. Said 1 operation can be done by hand or by a suitable machine whether before or after the goods to be packed is placed within the paper board container. It can be observed that, with the tearer 1 in place, the conventional wrapping .process .can easily be accomplished resulting to the wrapped package shown in FIG. 8.

' As shown in FIGS. 3 and 4, the subject opening device, tearer 1, is shown with an adhering agent, paper base 12.

The paper base 12 has on one side 13 a moisture catalyzed adhesive that adheres to the surface 7a of the package 8a. The paper base 12 is folded over so that the same side 13 is attached to a small portion of the bottom 6a of the tearer 1.

Thebottom 6a of the tearer 1 is pasted to the lower portion of side 13 of the paper base 12. The paper base 12 is then folded over and the remaining portion of the same side 13 is attached to the surface 7a of the package 8a. Said operation can be done by hand or by a suitable machine, whetherbefore or after the goods to be packed is placed within the paper board box. It can be observed that, with the tearer 1 in place and with the goods packed within the package 812, the conventional process of wrapping can easily be accomplished resulting to the wrapped packageshown in FIG. 8.

The tearer 1 as illustrated in FIG. 5 is shown with a paper board base 14 pasted along scored lines 15 and 16. Scored lines 17 and 18 are openings between the paper board base 14 and the tearer 1 through which the end portions 19 and 20 of the paper strip 21 are inserted respectively. The end portions'19 and 20 of the paper strip 21 is defined by scored lines 22 and 23 as shown in FIG. 7-over which said end portions are folded.

FIG. 6 illustrates the tearer 1 with the paper board base 14 and the paper strip 21 adhering to the surface 7b of the package 812. The paper strip 21 has on one side 14 a moisture catalyzed adhesive that adheres to the surface 7b of the package 8b. The tearer l is held temporarily in place on the surface 712 of the package 8b by the end portions 19 and 20 of the paper strip 21 which are inserted through the openings 17 and 18 between the paper board base 14 and the tearer 1. A path of weakening 9b on the wrapper 10b is created by the combined thickness of the tearer 1, the paper board base 14, and the paper strip 21.

The paper board base 14 is pasted to the bottom 6b of the tearer along the scored lines 15 and 16. With the paper board base 14- in place, openings 17 and 18 are created through which the end portions 19 and 20 of the paper strip 21 are inserted respectively. Then the side 24 of the paper strip 21 is pasted to the surface 7b of the package 8b. Said operation can be done by hand or by a suitable machine whether before or after the goods to be packed is placed within the paper board container. It can be observed, with the tearer 1 in place, the conventional wrapping process can easily be accomplished, re-

sulting to the cellophane wrapped package shown in FIG. 8.

When it is desired to open the package, the side of the bulge created by the tearer is engaged by the thumb and the forefinger of the user. With a combined sidewise pressure by the nail of the thumb and downward pressure by the forefinger on said side of the bulge, a shearing effeet on the wrapper is produced whereby a slit is formed leading to the complete tearing of said wrapper upon continuation of said movement. It can be observed that said tearing process can be accomplished regardless of the shape of the tearer or the manner said tearer is made to I or lengthwise depending on the position of the attached tearer, with the other end of said tear strip pasted on a suitable spot on the package surface. It can be observed that, with the tearer and the attached tear strip in place, the conventional process of wrapping can be easily accomplished.

When it is desired to open the package with the tearer and the tear strip, the side of the bulge created by said tearer is engaged by the thumb and the forefinger of the user. With a combined sidewise pressure by 'the nail of the thumb and downward pressure by the forefinger on said side of the bulge, a slit is formed on the wrapper.

The tearer can now be tilted and pulled away from the package by transferring the downward pressure .on the The tearer is made by punching or cutting a piece of a hard material strip of suitable size and thickness or by molding plastic and the like in suitable molds.

It is to be understood that this invention of a tearer is not confined to the specific construction, arrangements, and shape, as illustrated and described in the accompanying specification and drawings, and that considerable modification maybe made to the manner of attachment of the tearer on the container without departing from the spirit of said invention.

What I claim:

1. A tearing device adapted for 'use between a card board package and a severable wrapper comprising: a symbolically-shaped slitter member having serrated and 'burred cutting edges, said cutting edges being slightly elevated and horizontally directed with respect to the cardboard. package, and means for attaching said slitter mem- V ber, said means consisting of a narrow strip paper base board package and a severable wrapper comprising: a

slitter member having slightly elevated and horizontally disposed serrated and burr-ed cutting edges, means attaching said slitter to the outer surface of the cardboard package, said means consisting of a paper base with opposite ends pasted to the bottom of the tearer, and a paper strip having on a small portion of one side thereof a moisture :catalyzed adhesive bondingadaptable to adhere on the package surface and with the ends folded over and inserted through the opening'between the slitter member opposite side of said tearer.' With a round-a-bout'motion Y of the same hand holding the tearer, an evenly formed slit and the paper base to provide a temporary interlocking ei'fect thereby preventing the slitter member from moving about within the wrapper prior to the actual opening of the wrapped package.

References (Iited by the Examiner UNITED STATES PATENTS 1,636,390 7/27 Solas 229-51 X 1,863,082 6/32 Blackburn 20641.5 -2,178,l57 10/39 Anderson 206-5L5 X 2,275,Q91 3/42 Reynolds Q. 22951 2,392,479 1/46 Humbert 229-5l X 2,533,255 12/50 Will a 229-51 2,974,787 3/61 Cooper' 206-632 FOREIGN PATENTS 7 4,690 2/10 Great Britain.

FRANKLIN T. GARRETT, Primary Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1636390 *Jan 26, 1926Jul 19, 1927Soles Fred ASanitary sealed carton
US1863082 *May 20, 1929Jun 14, 1932Fred W GusieCigarette case
US2178157 *Dec 21, 1937Oct 31, 1939Otto AndersonPackage opening device
US2275091 *Jun 29, 1939Mar 3, 1942Reynolds Cecil APackage opening device
US2392479 *Jul 24, 1944Jan 8, 1946Humbert Louis JBeverage container
US2533255 *Jul 20, 1946Dec 12, 1950Will Theodore AOpening means for cigarette wrappers
US2974787 *May 10, 1960Mar 14, 1961American Cyanamid CoSingle use, prepackaged vaccinator
GB191004690A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3526315 *Nov 29, 1968Sep 1, 1970Phillips Petroleum CoPackage and process
US3882999 *Oct 29, 1973May 13, 1975Wellman Lester ROpener/re-closer for sealed containers
US3948014 *Mar 6, 1975Apr 6, 1976William E. YoungInternally contained tear-inducing tab for vacuum sealed packages
US4795270 *Feb 2, 1987Jan 3, 1989Heyden Eugene LReclosable bag with a folded portion engaged by a unitary material separation arrangement
US7673788Jun 22, 2007Mar 9, 2010Mario CalabrettaPackage opening device
Classifications
U.S. Classification30/346, 229/87.5, 229/203, 206/264, 383/202
International ClassificationB65D75/58, B65D75/52
Cooperative ClassificationB65D75/5838
European ClassificationB65D75/58E1A