US1786140A

US1786140A - Milk-bottle cap

Info

Publication number: US1786140A
Application number: US317753A
Authority: US
Inventors: Towy Lillian
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-11-07
Filing date: 1928-11-07
Publication date: 1930-12-23
Anticipated expiration: 1947-12-23

Description

De'c. 23, 1930. l.. ToWY MILK BOTTLE GAP Filed Nov. 7, 1928 IWI/enfer LzlllianLTO Patented Dec. 23; 1930 UNITED STATES LILLIAN TOW'Y, 0F INGLEWOD, CALIFORNIA I MILK-BOTTLE CAP Application vfiled November 7, 1928.. Serial No. 317,753.'

This invention relates to, closures for re ceptacles, and more especially to lan improved type of milk-bottle cap.

An object ofthe invention is the provision of a novel closure for the opening of a receptacle, this closure having means for facilitating removal thereof When access to the interior of the receptacle is desired.

A more specialized object is the provision of a disc of material having a certain'degree of resilience-for example, cardboard,-

adapted to be inserted inthe top of such a receptacle as a milk-bottle, to provide a clo.

sure therefor, capable of normally retaining the contents of the bottle, and which is provided With novel means for facilitating the removal of the closure When access to the in-l terior of the receptacle is desired, as for the purpose of filling the bottle or emptying the contents therefrom.

A further object is the provisiony of a receptacle closure as described, in which the vmeans 'for facilitating `removal, comprises an area of reduced resilience, such as a score eX- tending across the closure, and also provided With means such as a tab affixed to the closure adjacent the said area ofvreduced resilience, With the result that When this tab is pulled, theclosure Will buckle alono' the line of the said area, reducing the effective Width of the closure measured along a line perpendicular to the said area, Witha consequent loosening of the engagement of the closure with that portion of the receptacle to which it is attached. Milkbottle caps have previously been'supplied With tabs for facilitating the removal thereof, but it has been found in practice, that the engagementof the closure with the mouth of the bottle, is in most cases, sufliciently secure to result in tearing of the tab from the cap before the cap itself, is loosened from the bottle. It is an object of my invention therefore,l to improve upon milkbottle caps provided with removing-tabs, iny

such a manner that the removal of the cap is effected Wthout requiring a pulling force to be exerted upon the tab, suflicient to overcome the ultimate strength of the material of which 5o the cap and/or closure is constructed.

A still further object is the provision of a milk-bottle cap having an improved type of removal-tab, this tab being formed by a plurality of pairs of bounding scores whereby the tab may be severed from the body of the closure alonfr all but one edge thereof, and the scores o each pair being upon opposite faces of the closure and slightly offset from each other, facilitating severingrof the tab from the body of the closure.

The invention possesses other objects and `advantageous features, some of which, with those enumerated, will be set forth in the following description o f the inventions part-icular embodiment Which is illustrated in the 05 drawings accompanying and forming a part of the specification. I

Referring to the drawings:

Figure l is a perspective View of the top of a conventional milk-bottle closed by a cap incorporating the features of my invention.

Fig. 2 is a view similar to Fig. l, showing the cap with its removing-tab raised to operative position and the cap itself, buckled as in the operation of being removed from the milk-bottle. v i vF ig. 3 is a vertical sectional'r View of the upper portion 'of the bottle and cap of Fig. 2, the plane of section being indicatedlby the line 3-3 of that figure.

Fig. 4 is a plan view of a bottle cap incorporating the features of my invention. t

Fig. 5 isa vertical sectional view taken upon the line 5-5'of Fig. 4.

Fig. 6 is a Vertical sectional View takenA upon the line 6-6 of Fig.4.

Fig. 7 is a View similar to Fig. 5, but showl .ing the cap with theremoving-tab raised to i' operative position, and the cap itself, buckled` as in the operation of being removed. L The closure of my invention is herein described as being employed to close the mouth 11 of a conventional milk-bottlefglQ. Receptacles of this nature are commonly closed by a disc of suitable materialsuch'as waxed card- 95 board pressed into' the mouth 11. For this purpose a notch 13 is formed in the inner circumfere'ne of the mouth of the bottle, this notch 13`being defined by a vertical shoulder 14: and a horizontal shoulder 16.4 AIt is cus- 100 tomary to so dimension the closure disc that its edges are pressed into tight engagement with the vertical shoulder 14 when the closure is pressed into place, providing a suiliciently tight oint between the mouth of the receptacle and the closure, to satisfactorily retain the contents. However, it has been found in order to insure a sufficiently tight seal, the edges of the closure disc must engage the vert-ical Wall 14 so tightly that difficulty 1s encountered in removing the closure. ln fact, even though these closures have previously been supplied with a tab which may be raised and pulled, the engagement of the closure with the mouth of the receptacle, is so tight that the tab will be severed from the closure before the engagement of the closure with the receptacle is broken.

Accordingly, the closure 21 incorporatlng the features of my invention, has been dimensioned to fit within the space defined by the shoulder 14 with its edges pressed firmly against that shoulder with a sufficient degree of tightness to provide a satisfactory seal.

' This closure may be formed of any suitable material such as cardboard either waxed or not, according to the particular requirements. However, this material should be possessed of sufficient resilience to retain the closure in shape when it is pressed into the annular notch 13. The form of the closure herein shown and described, is a disc, since it is to be received within the round mouth 11 of a milk-bottle 12. It should be understood however, that in the event a receptacle having a different shaped mouth, is to be closed, the hclosure may be shaped to conform therewit An area of reduced resilience extends across the disc 21. A convenient method of forming this area is by providing a score 22 extending thereacross. Preferably this score 22 is in the inner face of the disc 21 and is disposed diametrically thereof. Y

A removing-tab 23 is also provided so that the removal of the closure 21 may be facili-I tated by grasping the tab 23 and pulling thereon. This tab 23 is formed by a plurality of bounding

scores

26, 27, and 28, in the outer face of the disc 23, and

scores

29, 31, and 32 in the inner face. The

scores

26 and 29, and the

scores

28 and 32, terminate adjacent the score 22 and at points considerably spaced so that the base of the tab 23 or that portion of the tab which is not intended to be severed b from the body of the disc, is disposed adjacent the area kof reduced resilience. The bounding scores 26 and 29, 27 and 31, and 28 and 32, are arranged in airs, the scores of each air being sli htly o set from each other as in icated upon igs. 4, 5, and 6. Preferably each of the scores extends into the associated surface of the disc a distance substantially corresponding to half the thickness of the disc, with the result that when it is desired to sever all the bounding edges of the tab 23, except the base thereof, from the body of the disc'21, this may be accomplished by tearing the material ofwhich the disc is formed, in a plane parallel to the faces thereof, taking advantage of the laminated nature of the material of the disc in the event that such material as cardboard is employed. A notch 36 is formed in the outer face of the body of the disc adjacent the score 27, permitting the insertion of a finger-nail to facilitate severing the `tab 23 from the disc. It should be observed that each of the bounding edges of the tab 23 is formed by a pair of scores, with the exception of the base 37 which is defined by the single scoreI 22. Consequently, the connection between the tab 23 at the base 37, is possessed of greater tensile strength than the other connect-ions between the tab 23 and the body of the disc 21.

In operation, the closure disc 21 is pressed into the notclrl3 of the receptacle 12, in the usual manner, without disturbing the tab 23 from the body of the disc 21. When it is desired to remove the disc 21 in order to open the receptacle, the tab 23. should first be raised `as indicated upon Figs. 2 and 6. Then this tab niafy be grasped and pulled, and since the base o the tab 23 is secured to the body of the disc 21 adjacent the diametrically extending score 22, a tendency will be developed for the disc 21 to buckle, reducing the effective diameter of the disc measured perpendicularly to the score 22, with the result that the disc 21 may be easily withdrawn from the mouth 11 of the bottle 12.

t should be further observed, that the tab 23 may be raised, forming an opening 38 in the disc 21, and the disc may be left in its normal position within the mouth l1 of the bottle 12, should it be desired to employ the well known sipping-straws for the removal of the contents of the bottle.

It is to be understood that the details of the invention as herein disclosed, are subject to alteration Within the spirit or scope of the appended claims.

claim:

l. A milk bottle cap comprising a flat disc of paper or similar material weakened for `folding purposes upon a transversely extending line, and a tab for removing the disc, said tab being permanently connected to the disc adjacent the weakened line and normally eing disposed in a plane parallel to the plane of the disc.

, 2. A milk bottle cap comprising a flat disc of paper or similar material weakened for lolding purposes upon a transversely extending line, and a tab for removing the disc, said tab being formed integral with the disc and normally being disposed in the plane thereof, said tab eing adapted to remain permanently 1connected to the dise adjacent said weakened 3. A milk bottle cap comprising a flat circular disc of paper or similar material weakened for folding purposes upon a diametrical line and a tab for removing the disc, said tab being formed integral with the disc and normally being disposed inthe plane thereof, said tab being adapted to remain permanently connected to the disc adjacent said weakened line.

4. A milk bottle cap comprising a flat disc of paper weakened for folding purposes upon a diametrical line, there being cuts formed on the upper side of said disc extending partially through the disc defining a tab formed integral with the disc adapted to remain permanently connected to the disc adjacent said weakened' line.

5. A milk bottle cap Comprising a Hat disc of paper weakened for folding purposes upon a diametrical line, there being cuts formed on the upper side of said disc extending partially through the disc defining a tab formed integral with the disc L adapted to remain permanently connected to the disc adacent,

said weakened line, there beingsimilar cuts formed on theunder side of the disc extending partially through the disc which are parallel' to but spaced from the cuts on the upper side of the disc.

In testimony whereof I have signed my name to this specification.

LILLIAN TOWY.