US3081003A

US3081003A - Container for liquid

Info

Publication number: US3081003A
Application number: US817601A
Authority: US
Inventors: Thomas R Baxter; Michael M Stukane
Original assignee: Continental Can Co Inc
Current assignee: Continental Can Co Inc
Priority date: 1959-06-02
Filing date: 1959-06-02
Publication date: 1963-03-12
Anticipated expiration: 1980-03-12

Description

March 12, 1963 T. R. BAXTER ETAL CONTAINER FOR LIQUID Filed June 2, 1959 3 Sheets-Sheet 1 if m nim INVENTORS THOMAS R. BAXTER MICHAEL M. STUKANE ATTORNEYS.

March 12, 1963 T. R. BAXTER El'AL CONTAINER FOR LIQUID Filed June 2, 1959 s Sheets-Sheet 2 5 INVENTORS THOMAS R. BAXTER g MICHAEL M. STUKANE Arm/vim.

T. R. BAXTER ETAL CONTAINER FOR LIQUID March 12, 19,63

3 Sheets-Sheet 3 Filed June (2, 1959 INVENTORS THOMAS R. BAXTER MICHAEL M. STUKANE ATTORNEm United States Patent Ofiice York Filed June 2, 1959, Ser. No. 817,601 3 Claims. (Cl. 222105) The invention relates to a container for liquids. The container is one which is especially adapted for use in the shipment of milk and as a dispenser for the milk in restaurants and homes.

Containers heretofore used for the shipment and dispensing of milk in bulk have been quite generally made of metal and have included special valve or stopper devices to provide for the attachment of dispensing spouts by the user. Apparently those concerned with the problem of designing containers to fulfill the shipping and dispensing functions have not been able to discover any practical way of doing the job without employing this rather expensive and heavy type of equipment. It has been an object of our invention to provide a less expensive, single use or throw-away type of container, and onewhich can be shipped to dairies in compact flat form and easily erected for use.

1 According to our invention, the container comprises a carton formed of corrugated paperboard, fibreboard or other paperboard container stock, means including a removable section in a lower part of a side wall of the carton to permit pouring of liquid from the container, and a flexible plastic bag received within the carton and supported by the .walls of the carton. The plasticbag has a sealed spout portion adjacent the removable section of the sidewall of the carton. This sealed spout portion is adapted to protrude through the opening in the carton and form a pouring spout extending outwardly at the bottom of the container. The carton has an inclined inner bottom wall formed by a wedge shaped insert by folding a strip of container stock into tubular form with portions thereof forming a support across a central part of the inclined bottom so constituted. The plastic bag has an inclined bottom which accommodates itself to the inclined inner bottom wall of the carton and provides a pointed end on the bag to form the spout portion in a manner which adapts it for protrusion through the opening in the carton to create an elongated pouring spout under pressure of the liquid within the bag as it causes such pointed end to bulge out through the opening. The plastic bag preferably consists of a seamless tube heat sealed in flattened form along its upper and lower edges. Other features and advantages of our invention will appear in the more detailed description which follows.

In the drawings:

FIG. 1 is a face view of a blank for the carton.

FIG. 2 is a face view of the blank for the wedge shaped insert that goes into the bottom of the carton.

FIG. 3 is a side view of the plastic bag in its initial fiat form before filling.

FIG. 4 is a front elevational view of a valve mechanism for the spout of our container.

FIG. 5 is a detail view in which the valve mechanism .is shown as applied to our container, the valve being shown in side elevation and a corner of the container in vertical cross section. Here the valve is closed.

3,081,003 Patented Mar. 12, 1963 FIG. 6 is a detail view similar to FIG. 5, valve open. FIG. 7 is a perspective view of our preferred form of wedge shaped insert.

FIG. 8 is a perspective view of a modified form of- 7 insert.

FIG. 9 is a perspective view of the complete container with the plastic bag filled and sealed, the top flaps of the container open and portions of the sides of the carton broken away to show inner construction.

. FIG. 10 is a perspective view of the container with the removable section torn out and the valve mechanism ready to be put in place.

With reference to the drawings, we shall now describe the best mode contemplated by us for carrying out our invention.

In its general arrangement our invention comprises a carton 1 (FIG. 10) formed of paper board container stock, means including a removable section 3 in a lowerpart of a side wall of the carton to permit pouring ofliquid from the container, and a flexible plastic-bag 2 (FIG. 9) received within the carton and supported by the walls of the carton. The plastic bag has a sealed spout por-' tion 4 adjacent the removable section and adapted to protrude through the opening provided by removal of such section and to form a pouring spout 5 extending outwardly at the bottom of the container (see FIG. 6). 1

The carton 1 which forms a part of our container may conveniently be of the type commonly referred to as a regular slotted container, the blank for which is shown in FIG. 1, consisting of four side wall panels and closure flaps at the ends thereof (eight in all). This carton is formed in a conventional manner with cutting and scoring dies producing the slots which outline the closure flaps and the score lines which define the cdges-ofthe four side wall panels, all as clearly represented in FIG. 1. This blank is folded about the median score line 30 to form the flat folded carton and taped together or otherwise secured along the meeting edges 31, 32.

According to our preferred construction, a strong plastic tape 6 is secured to the blank by adhesive means 'in a position to extend around the inside of the carton somewhat above its bottom. In one of the narrower side walls, a pull tab 7 is outlined by a cut line extending through the container stock. This pull tab is located at a corner of the carton and adjacent an end portion of the section of tape 6 which extends across the wall of the carton between the upper end portions of tear lines 8 defining the removable section 3. Tear lines 8 are suitably formed by a series of slits, the slits serving to sever the tape at the ends of the removable section as at 9, whereby the section of the tape which extends between end portions of the tear lines can be pulled free when torn out in the operation of releasing the removable section (see FIG. 10) In the particular construction shown, the removable section 3 comprises a part of the side Wall 10 and an adjoining inner end flap 11 of the carton. Alternatively, the removable section may consist simply of a circular punch-out section to receive the marginal collar 39 of a valve mechanism to which we shall refer later.

The wedge shaped insert is preferably formed by folding a strip of container stock (FIG. 2) as follows (FIG. 7): inwardly from one end of an inclined panel 12 as at 13, thence upwardly to form a central supportingwall 14 and thence outwardly and downwardly on the incline as at 15; downwardly from the other end of the inclined panel 12 as at 16, thence inwardly at 17, thence upwardly to form a central supporting wall 18 adjacent the first, thence outwardly and upwardly on the incline as at 19, and thence downwardly at 20 to the bottom. The inclined inner bottom wall formed by panel 12 preferably has its lower corners 21 bent upwardly for cooperation with the spout portion of the plastic bag in shaping such portion into an elongated pouring spout (see FIG. 10). The upwardly bent corners 21 are formed in the blank (FIG. 2) by providing the projecting portions 22, cut lines 23 and fold lines 24. With this construction the step of placing the wedge shaped insert into the carton causes the projecting parts 22 to strike the side walls of the carton, lifting corners 21 into the position shown in FIGS. 7, 9 and 10, and these corners are effectively held in their inclined positions through the contact with the side walls of the carton so as to form a strong support for the weight of the filled bag. The central supporting walls 14 and 18 may if desired be fastened together as by means of metal staples 25.

In the modified construction shown in FIG. 8, the bent corners 21 of the FIG. 7 construction are omitted and the two tubular parts of the insert in lieu of being fastened by the metal staples 25 are held together by a suitable interlocking tongue and groove at 26.

The polyethylene bag 2 is initially in the form of a seamless flat sterile tube hermetically heat sealed along its upper and lower edges at 27 and 29. During the filling operation, the bag is pierced by the filling nozzle. Any entrained air is extruded from the top of the bag, after which the filling opening pierced into the bag by the nozzle is heat sealed, forming a complete hermetically sealed container for the milk or other liquid contents. The heat sealed lower edge 29 is inclined at an angle to the axis of the tube. This construction accommodates the filled bag to the inclined inner bottom wall of the carton as may be seen in FIG. 9, and further provides a pointed end on the bag to form the spout portion 4 in a manner which specially adapts it for protrusion through the opening provided by removal of section 3 to create the elongated pouring spout (FIG. 6) under pressure of the liquid within the bag as it causes such pointed end to bulge out through the opening.

In use the carton 1 is set up at the dairy with the bottom flaps secured together by gluing (except for removable inner end flap 11), stapling, or both. The bag 2 is then inserted, filled, and the opening 28 sealed, the top flaps then being closed and secured, ready for shipment. At the restaurant or other place of use, pull tab 7 is torn away, and section 3 removed and discarded. Under the pressure of the contained milk, the pointed corner or spout portion of the plastic bag will burst out through the opening thus provided. Then if desired a suitable valve mechanism may be attached to the container for controlling the dispensing action of the container. In FIGS. 4, 5 and 6, we have shown one suitable type of valve mechanism which may be employed. As this mechanism is not considered to form a part of our present invention, it will be described only in general terms as consisting of a face plate 33 to which is secured a toggle mechanism 34, operating handle 35, pressure bar 36 and a resilient pad 37- against which the spout 5 of the bag is pressed by the pressure bar 36 to close the spout. FIG. 5 shows the closed position of the valve, FIG. 6 the opened position. The mechanism as shown further includes an opening 38 having a marginal collar 39 adapted to enter a portion of the opening in the carton, and a lower flange 40 adapted to extend underneath the wedge shaped bottom insert of the carton and the lower wall thereof. At or near the upper end of face plate 33 are provided inwardly and upwardly extending prongs 41 which can be hooked into the side of the carton when the valve mechanism is put into place. The manner of applying the valve mechanism to the container is illustrated in FIG. 10. After the prongs 41 have been inserted, the lower end of the face plate 33 is swung downwardly and inwardly against the side of the carton to close the opening therein. As this is done the protruding spout portion 4 of the plastic bag is inserted through the opening 38 of the face plate and drawn outwardly. Then the tip of the spout portion is placed over the resilient pad 37 and the pressure bar 36 brought against it in the manner shown in FIG. 5. Now the tip 42 of the spout portion is severed as along the line 43 (see FIG. 3) and removed. To dispense the contents it is now necessary merely to pull out the operating handle 35 of the valve mechanism so that the contents may flow freely through the spout 5. When the handle 35 is returned to the position shown in FIG. 5, the flow will be cut off. After the container has been emptied, the valve mechanism is removed and is ready to be applied to another full container. The old container including the carton and the plastic bag, may be thrown away so that there is no necessity for re-shipment of empty containers as has generally been required with the expensive metal containers commonly used heretofore.

The terms and expressions which we have employed are used in a descriptive and not a limiting sense, and we have no intention of excluding such equivalents of the invention described as fall within the scope of the claims.

We claim:

1. A container for liquids comprising a paperboard carton and a flexible plastic bag therein having at least one pointed corner defining a self-forming pouring spout, a removable section extending across the lower part of a side wall of the carton, said removable section being arranged in a position completely supporting said pointed corner in a collapsed condition, a wedge shaped insert positioned in the bottom of the carton to support the flexible bag in a manner to direct liquid content therein toward said pointed corner, said insert having an inclined upper portion and a vertical support for the inclined portion positioned below and intermediate the inclined extremities thereof, whereby upon release of the removable supporting section, said pointed corner will be self-propelled by the liquid content so as to protrude through the opening provided by such release of the removable supporting section and provide a self-formed pouring spout extending outwardly at the bottom of the container.

2. A container for liquids comprising a paperboard carton and a flexible plastic bag therein having at least one pointed corner defining a self-forming pouring spout, a removable section extending across the lower part of a side wall of the carton, said removable section being arranged in a position completely supporting said pointed corner in a collapsed condition, a wedge shaped insert positioned in the bottom of the carton to support the flexible bag in a manner to direct liquid content therein toward said pointed corner, said insert having an inclined upper portion and a vertical support for the inclined portion positioned below and intermediate the inclined extremities thereof, and the lower corners of said inclined portion being bent upwardly, whereby upon release of the removable supporting section, said pointed corner will be self-propelled by the liquid content so as to protrude through the opening provided by such release of the removable supporting section and provide a self-formed pouring spout extending outwardly at the bottom of the container.

3. A container for liquids comprising a paperboard carton and a flexible plastic bag therein having at least one pointed corner defining a self-forming pouring spout, a removable section extending across the lower part of a side wall of the carton, said removable section being arranged in a position completely supporting said pointed corner in a collapsed condition, spaced vertically extending slits defining the sides of the removable section, a horizontally extending tape secured to the inner side of said carton and intersecting the upper ends of said slits to define the top of said removable section, a wedge shaped insert positioned in the bottom of the carton to support the flexible bag in a manner to direct liquid content therein toward said pointed corner, and said insert having an inclined upper portion and a vertical support for the inclined portion positioned below and intermediate the inclined extremities thereof, whereby upon release of the removable supporting section, said pointed corner will be self-propelled by the liquid content so as to protrude through the opening provided by such release of the removable supporting section and provide a self-formed pouring spout extending outwardly at the bottom of the container.

References Cited in the file of this patent UNITED STATES PATENTS 984,981 Tuor Feb. 21, 1911 6 FitzGerald June 1, 1920 Bogren Apr. 25, 1933 Carr June 15, 1943' Goodyear May 9, 1944 Smith Aug. 3, 1948 Carson et al Feb. 16, 1954 Bonnie Apr. 22, 1958 Randall Feb. 3, 1959 Voege et a1 May 26, 1959 Winstead Oct. 4, 1960

Claims

1. A GRAPPLE FOR FISHING DRILL BITS FROM OIL WELLS COMPRISING: AN UPRIGHT CYLINDRICAL BARREL, THREE PAIR OF RIBS EXTENDING ON THE OUTSIDE OF SAID BARREL AXIALLY THEREOF, EACH OF SAID PAIR OF RIBS HAVING A SLOT THEREBETWEEN, A BOLT EXTENDING ACROSS FROM EACH RIB TO THE RIB OPPOSITE THE SLOT, AN ARM EXTENDING AXIALLY OF SAID BARREL IN EACH SLOT, SAID BOLT EXTENDING THROUGH A HOLE IN SAID ARM, A FOOT PORTION OF SAID ARM EXTENDING BELOW THE LIMITS OF SAID BARREL, A SHANK END OF THE ARM EXTENDING UP, A SPRING FOR EACH ARM, EACH SPRING BIASING THE SHANK END OF THE ARM AWAY FROM THE BARREL SO THAT THE FOOT PORTION IS BIASED INWARD, A CAM ON THE EXTREME FOOT END OF SAID ARMS, A CLAW ABOVE THE CAM ON EACH FOOT PORTION; SO THAT AS THE GRAPPLE IS LOWERED OVER A BIT, THE CAMS SPREAD THE ARMS AND FIT THEREOVER, AND WHEN THE GRAPPLE IS RAISED THE CLAW ENGAGES THE BIT TO LIFT IT WITH THE GRAPPLE, AND A MEANS FOR CAUSING A JET OF FLUID TO WASH OVER THE BIT.