US2286342A - Container - Google Patents

Description

June 16, 1942.

'J. B. CALVA vCONTAINER Filed Dec. 23, 193'? Sigg go g 3%' 31 Z2 0 15 zy 31 3 )fi/3,012@ f6 J w wm E l l 10 56 Z7 j .54)I

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Patented `une 16, 1942 uNiTED STATE CONTAINER Jose B. Calva, St. Paul, Minn., asslgnor,4 by mesne assignments, to Waldorf Paper Products Company, a corporation, of Minnesota Application December 23, 1937, Serial No. 181,304

1 Claim.

My invention relates to an improvement in containers wherein it is desired to provide a container, the body portion of whichis formed preferably of paper or Many types of containers formed for the purpose of holdi/ng liquids or greasy materials. Some of these containers have been successful in containing these materials for 'some length of time. It Ahas been difcult to store such materials in the containers for any great length without leakage of the cmaterial from the container or absorption of the liquids by the body of the container..

It is a purpose of the present invention to provide a container which is constructed in a man-A nerI to prevent both the leakage of the contents similar material, and which is designed to accommodate liquids, semisolids, oil, or similar material.

have previously been from the container and also to prevent absorpk of plastic material.

made, the container is designed to maintain this 4 seal until the container or seal is punctured, thus preventing refilling of the container.

It is a purpose of my invention to provide a container which may be made at a minimum of cost and `which is extremely light in weight. Accordingly, I desire to use paper or pulp products in the formation of both the side walls and the ends of the container wherever possible and to reinforce the container if necessary at the points of greatest strain. The seal may be formed oi' either metallic material or of plastic or fibrous material in a manner which will be later lmore clearly described.

It is a further purpose of my invention to pro- I vide a container formed of either laminated sheets of paper or fibrous material or of pulp products or plastic materials, which are lined with a suitable liner impervious to the mate- Figure l is a perspective view of my container in preferred form.

Figure 2 isa cross-sectional view through an end of my container illustrating the filling and sealing arrangement.

Figure 3' is a sectional view through one end of a slightly different form of container'.

Figure 4 is a sectional view through an end of my container of slightly different form, disclosing the end thereof which is equipped with filling and sealing apparatus. l

Figure 5 discloses my container in 'which a slightly different form of filling and sealing device is provided. i,

My container A is formed with,.a side wall I0 which may be either cylindrical or any other geometrical shape. This wall I0 may be of pulp material molded into proper fqrm or may be formed of laminated sheets, one wound about the other. The side wall III may similarly be formed On the inner surface of the container A extending from end' to end of the side wall I0, I provide a liner II formed of a film of material impervious tothe material to be contained.

At theends of the container I. provide end walls formed of discs of material formed of laminations of paper, molded pulp, or of plastic material. These end walls I2' are provided with a cylindrical flange I3 of a diameter to flt tightly within the side wall I0, and the inner surface of the end walls I2 are provided with a liner I3 formed of material impervious tomoisture. This lining I3 preferably extends about the flange I3 so that the two surfaces of -lining material I I and I2 may contact about the entire periphery of the inside of the container and may be adhered together by a suitable adhesive I4 between these linings.

' flange I6 surrounding wall I0 and having an end I1 extending into the body of the sidewall I0. The ring I5 is also prorial to be contained. This lining material is so arrangedA as to seal the contents of the material thoroughly and to prevent absorption of the contained material b'y the body of the container.

These andother pbjects and novel features of my invention will be more fully and clearly set forth in the following specification and claim.

In the drawing forming a part of my specification:

vided with an end ends of the side wall I0 and the flange I3 on the end wall I2. An inner flange 20 extends within the flange I3 and if desired a short ring-,shaped flange 2l may 'overlie the top surface of the end wall I2. The reinforcing ring I5 thus holds the flange I3 closely adjacent' the side wall III and prevents the separation of these members. This ring I5 also reinforces the end of the container from shock.

In Figure 2 of the portion I9 which covers the l drawing, I disclose a reincular groove 26 extends into the end wall I2 to crimp the 'end wall and to compressthe end wall at this point to prevent leakage about the sleeve 24. A ring 21 extends about the sleeve 24 spaced on the opposite side of the end wall I2 therefrom. This ring 21 is provided with an integral sleeve 29 fitting closely against the tapered wall 24 to form a tight joint between these members 29 and 24. 'I'he ring 21 may also be formed with a circular groove 30 of a diameter approximately equal to the diameter of the groove 26 so that when the seal is in place, the end wall I2 is pinched by the opposed rings formed by the grooves 26 and 30, to compress the end wall and to prevent leakage of the contents of the container at this point.

In this construction it will be noted that at the juncture between the side wall and the end wall, the two lining members contact and are adhered together, and it will also b e noted that the seal compresses the liquid, moisture, or grease-proof lining and directly contacts the same, preventing leakage.

The outer end of the tapered sleeve 24 is flared outwardly at 3| and a cap 32 is rolled or crimped about this flared end 3| when the seal 32 is in place. When the package has been filled, the seal 32 is applied and crimped in a manner to prevent leakage at this point. If desired, a gasket 33 may be provided within the cap or seal 32 to engage the flared end 3I of the wall 24.

In Figure 3 of thedrawing, I disclose a container having a side wall 34 having an inner lining and an outer lining 36 of grease-proof, oil and liquid-proof material. The end wall 31 is formed o'f a disc-shaped body 39 having aperipheral flange 40 of a shape to flt within the side wall 34. A lining 4I is provided extending over the inner surfaceof the body 39 and the outer surfaceof the flange 40 so that the lining 35 and the lining 4I may be adhered by a suitable glue atv 42. An outer covering or coating of grease, oil, and moisture-proof material indicated at 43 may also cover the outer surface of the body 39 of the end wall 31 and the internal surface of the flange 40 If it is desired tofurther reinforce the end wall 31, this may be done by means of suitable reinforcing discs 44 overlying the body 39 and extending within the flanges 40. The end may be further reinforced by means of a reinforcing ring 45 extending within the flange 40, and the ring 45 may be secured to the flange 40 and to the end `wall 44 by rivets, staples, or other suitable holding means indicated at 41.

The end wall 31 is disclosed as including a filling plug 49 which is substantially identical to the plug 23 illustrated in Figure 2. The cap 50 used in combination with the filling plug 49 is shown crimped directly to the flared end 5I of the plug 49 and no gasket is shown in this construction. It is obvious that a gasket such as 33 may be provided if desired or that the construction4 of Figure 2 may be equipped with a reinforcing ring such as 45.

Figure 4 of the drawing discloses a container end which is similar to that disclosed in Figure 2, but does not disclose the reinforcing disc such as 22 of Figure 2, or ythe filling device. In this form of construction, the s ide wall 52 is provided with an inner lining 53 formed of liquid and grease-proof material. The end wall 54 is also lined with a grease-proof and liquid-proof lining 55 which extends over the entire surface thereof and over the peripheral flange 56 of the end wall. 'I'he end may be adhered to the side wall, adhering the lining 534 to the lining 55 by means of a suitable adhesive at 56. VA reinforcing ring 51 is provided enclosing the extreme end of the side wall and flange 56. This reinforcing ring is similar to that disclosed in Figure`2 of the drawing.

. This reinforcing ring if desired may be substituted l 'I'he end wall 62 is formed with 'wall of the plug 41 or opening 66.

for the end closing ring 59 illustrated in Figure 3 of the drawing; which is merely a ring of suitable material such as paper, pulp board, or plastic material adhered to the end of the container. This ring 59 which may be treated to water-proof the same, closes the ends of the sidewall 34 and fiange 40 as well as the reinforcing ring 45. The ring 59, when properly adhered in place by suitable glue prevents the absorption of any of the contents by the body of the container, the end Wall or reinforcing ring.

In Figure 5 of the drawing, I disclose a slightly different form of container seal. In this form of construction the side wall 60 is provided with a suitable liquid, oil, or grease-proof lining 6I.

63 having a peripheral flange 64 extending about the same. A lining of liquid and grease-proof material indicated at 65 extends over the inner surface of the end wall 62 and flange 64 and may be secured in place by adhering the lining 65 directly to the lining 6I. A central aperture is provided in the end Wall 62 which is preferably tapered as indicated at 66.A The container is sealed by means of a disc 61 which extends within the fiange 64 and which is provided with an integral plug 69 extending into the opening 66. The plug A69 is preferably tapered as illus--l trated to fit the taper of the opening 66. The surface of the disc 61 and plug 69 is covered with a coating or lining impervious to liquid, oily and greasy material indicated at 10. When ths contents of the container of this form are Within "the container, the same may be sealed by means of a suitable adhesive applied to the surface of the lining 10 or the end wall 62, or both of these members, as well as about the tapered When the end plug 61 is'in place, the joint between this end plug and the end wall 62 is therefore sealed by this adhesive, preventing leakage about the central plug 69.

The closure plug 69 and integral disc 61 may be formed of laminated material, fibrous, or plastic material formed in the proper shape, and when in position will reinforce the end wall 62' ofthe container.

In accordance-with the patent statutes, I have a disc-like body l a continuous unbrokeniiner covering the entire 10 inner surface of said sealing means, said end wall having' an aperture therein into which said plug ,extends, said plug projecting through said aperture, a moisture impervious lm on said bearing portion /and extending over said plug, and adhesive means interposed between said liner over said bearing portion and said end wall and between said plug and said aperture.

JOSE B. CALVA.

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