US1963797A

US1963797A - Container valve

Info

Publication number: US1963797A
Application number: US515566A
Authority: US
Inventors: Mills John
Original assignee: FOOD PROC Co
Current assignee: FOOD PROC Co; FOOD PROCESSING Co
Priority date: 1931-02-13
Filing date: 1931-02-13
Publication date: 1934-06-19
Anticipated expiration: 1951-06-19

Description

uFume 19, 1934. J. MILLS 1,963,797

CONTAI NER VALVE Filed Feb. 13, 1931 gn vo ntom Patented June 19, 1934 PATENT OFFICE CONTAINER. VALVE John Mills, New York, N. Y., assignor to The Food Processing Company, Philadelphia, Pa., a corporation of Delaware Application February 13, 1931, Serial No. 515,566

8 Claims.

This invention relates to containers for foods and more particularly to an improved valve for such containers.

One of the objects of this invention is to provide a valve for a container which will readily withstand the strains of either vacuum or pressure within a container.

Another object of the invention is to provide a valve which may be quickly and easily applied to the end of a container.

Another object is to provide a container equipped with a suitable valve by means of which fluids may be withdrawn from or passed into the container after which the valve may be closed to maintain the container sealed with various desired pressures therein at, above or below atmospheric pressures.

Still other objects of the invention and the invention itself will become more apparent from the following description and drawing which forms a part of this specification.

In the drawing showing specific embodiments of this invention;

Figure 1 is a plan view showing the end of a tin can equipped with one form of valve of this invention,

Figure 2 is a fragmentary sectional view of the end of the can taken along the line 2-2 of Figure 1 showing the closure in a partially closed position; and

Figure 3 is a fragmentary sectional view 'of the parts of Figure 2 in a closed position; and

Figure 4 shows a preferred form of valve made according to this invention.

Referring to Figures 1, 2 and 3 of the drawing, throughout which like parts have been designated by like reference characters, 1 designates a can body having an end 2 in which is formed a port 12. The container may have the other end formed in any well known manner. The end 2 includes a short cylindrical wall 3 which is adapted to be folded with the edge of body 1 and crimped into a bead 4 substantially as shown or in any other conventional form to provide a fluid tight seal. The manner of securing the end 2 to the body 1 is such as to leave the inner surface of the wall 3 free from obstructions. An annular groove 6 is provided adjacent to the cylindrical wall 3 of the end 2, and suitable packing, such as rubber gasketing '7 may be disposed in this groove but such a packing is not indispensable. Extending from the annular groove 6 toward the center of the end is a frusto-conical plane portion 8 which terminates in another annular groove 9, also provided with suitable packing or gasket material 10. The central portion of the end 2 bounded by the groove 9 slopes inwardly toward the interior of the can to provide an annular concave portion 11 extending to a central aperture (Io-operating with the member 2 is another cup-like valve member 20, which includes a cylindrical wall 21 adapted to be telescoped withinthe wall 3 of the member 2. The member 20 is provided with a plurality of grooves or ribs 22, 65 24 and 25, adapted to correspond with and seat in the

grooves

6, 9 and 11 of the end 2 respectively. From rib 22 extends a frusto-conical plane 23 corresponding to the plane 8 of the member 2. The space 25 in the center of the member 20 bounded by the rib 24 is concave-convex adapted to seat on the annular portion 11 andto close the aperture 12.

The plane 23 of the member 20 is provided with a plurality of tongues 27 defined by V-shaped slits in the wall, the material embraced by each 'V forming a tongue which is displaced downward as best shown in Figure 2 to act as spacers between end 2 and valve 20 while the aperture .12 is to be kept open.

The can having been filled with the material which is to be processed and/or sealed therein, and the end 2 having been secured in place and sealed to the body 1 as by crimping, the valve member 20 is inserted in such a manner that the 5 tongues 27 rest on the wall 8 of the end 2. The valve 20 will have frictional engagement at its circumference with the inner surface of the marginal flange of end 2. In this position the valve is open, and fluids may pass in either direction through the aperture 12 and through the apertures 28 formed by the V-shaped slits and tongues 27.

' When the can is to be sealed the valve member 20 is pressed into end 2,-the wall 21 telescoping frictionally within the wall 4, the concave portion 25 closing the aperture 12, the annular rib 24 seating in the annular groove 9 and the gasket material assisting to form a leakproof seal, the tongues 27 being bent into their original undism torted position, and the rib 22 seating into groove 6. The V-shaped slits may be covered with a suitable material to seal the same. The-peripheral wall 21 being closely seated in the wall 4 provides still another seal, and the friction there- 5 between'prevents displacement of the valve, particularly where the pressure in the container is either below or not too far above atmospheric pressure.

In Figure 4 is shown a modified and preferred larger diameter valvemay be desirable.

form of the present invention. .In this modification the valve is much smaller in diametrical' dimensions than in the modification of Figures 1, 2 and 3.

In Figure 4, l designates a fragmentary portion of one end of the body of a tin can container, provided with an end 30 suitably secured at its periphery to body 1 as by crimping or in any other well known and suitable manner. Near the center of end 30 a depression is formed having a generally cylindrical wall 31 with a circumferential curve 32, a plane or slightly conical portion 33 therewithin at the inner margin of which a second curve 34 is disposed, the inner periphery of which extends conically downward as at 35 to define an aperture 36. Suitable sealing or gasket material 37 may be disposed in

curves

32 and 34.

The valve 38 is shaped to fit with frictional engagement within the cylindrical wall 31, and consists of an upstanding marginal flange 39 and a disc-like end shaped with a curve 40 to seat in curve 32, a second curve 41 to seat in curve 34, a generally conical portion 42 between these two curve portions to engage or practically engage the conical portion 33 and a concave-convex central portion 43 to seat on the conical portion 35 and close the aperture 36. The conical portion 42 has V-shaped portions 42 formed by V-shaped cuts. through the wall 42 and pressed down to serve as guides for spacing the valve 38 away The valve of this invention possesses certain apparent advantages, among which may be enumerated the possibility of utilizing the valve on containers of various sizes from containers having small ends where a modification of Figure 4 may be desirable to containers having larger ends where the additional strengthening effect of the Furthermore, due to the considerable amount of spacing between the valve proper and the container end as is regulated and determined by the V-shaped perforations, various fluids, including liquids as well as gases may be passed through the valved aperture. This is often desirable in caseswhere a syrup is to be put into the container after the bulky product in the container has been processed.

Having thus described the invention in different embodiments thereof, what I desire to secure by Letters Patent is defined in what isclaimed.

It is claimed- 1. A valveddevice for a container comprising a container end to be hermetically secured to the container wall and a valve, the said end having a cylindrically projecting wall and being provided with a circular aperture, the surface of the end surrounding the aperture forming a seat, a concentric curved portion adjacent thereto and the valve having a cylindrically projecting wall adapted to engage frictionally with the said cylindrical wall of the container end and a portion on said valve of spheroidal formation having a concentric rib around the same adapted to close the aperture and seat in the surface adjacent thereto with the said rib disposed in the concentric curved portion when the valve is in seated assembled pocontainer wall and a valve, the. said end having a cylindrically projecting wall and being provided with a circular aperture, the surface of the end surrounding the aperture forming a seat, a concentric curved portion adjacent thereto, and the valve having a cylindrically projecting wall adapted to engage frictionally with the said cylindrical wall of the container end and a portion on said valve of spheroidal formation having a concentric rib around the same adapted to close the aperture and seat in the surface adjacent thereto with the said rib disposed in the concentric curved portion when the valve is in seated assembled position in the cylindrical projection, and a seal-- ing material disposed between the rib and said concentric curved portion.

3. A valved device for a container comprising a container end adapted to be secured to the container and a valve, the said end having a cylindrical projection and being provided with an aperture, the surface of the end adjacent the aperture forming a seat, and the valve having a cylindrical wall adapted to engage frictionally with the said cylindrical wall of the container end, and a portion on said valve adapted to close the aperture and seat in the surface adjacent thereto, a plurality of vents disposed in the valve spaced from the seating portion of the valve and tongues formed by said vents and adapted to close the vents when the valve is in seated assembled position in the cylindrical projection.

4. A valved device for a container comprising a container end adapted to be secured to the container and a valve, the said end having a cylindrical projection and being provided with an aperture, the surface of the end adjacent the aperture forming a seat, and the valve having a cylindrical wall adapted to engage frictionally with the said cylindrical wall of the container end and a portion on said valve adapted to close the aperture and seat in the surface adjacent thereto when the valve is in seated assembled position in the cylindrical projection'and a plurality of vents disposed in the valve spaced from the seating portion of the valve, and adapted to be closed when the valve is seated.

5. A valved device for a container comprising a container end adapted to be secured to the container and a valve, the said end having a cylindrical projection and being provided with an aperture, the surface of the end adjacent the aperture forming a seat and a concentric curve in the surface adjacent thereto, said valve having a cylindrical wall adapted to engage frictionally with the said cylindrical wall of the container end, and aportion on said valveadapted to close the aperture and seat in the surface adjacent thereto and a rib adapted to seat on said concentric curve, a plurality of vents disposed in the valve spaced from the seating portion of the valve and tongues formed by said vents and adapted to close the vents when the valve is in seated assembled position in the cylindrical projection, said vents adapted to provide fluid access to theinterior of the container when the valve is placed in a partially closed position.

6. A valved device for a container comprising a container end adapted to be secured to the container and'a; valve, the said end having a cylindrical projection and being provided with an aperture, the surface of the end adjacent the aperture forming a seat and a plurality of spaced channels concentrically disposed about said aperture, andthe valve having a cylindrical wall adapted to engage frictionally with the said cylindrical wall of the container end, and a portion on said valve adapted to close the aperture and seat on the surface adjacent thereto, and a plurality of spaced concentric ribs adapted to seat in said channels, vents disposed in the valve intermediate the concentric ribs and tongues formed by said vents and adapted to close the vents when the valve is in seated assembled position in the cylindrical projection.

7. In combination, a container having secured thereto an end closure wall formed with an annular valve seat defined by cylindrical projecting side walls and a bottom wall having an annular valve aperture therein, the wall around said aperture being formed with an annular sealing recess concentric with said aperture, and a valve member having cylindrical side walls adapted to telescope into, and be retained in place by frictional engagement with the projecting side walls of said seat and formed with a closure wall which is complemental to the said bottom wall and having a depression adapted to seat in said aperture walls of the valve seat by frictional engagement therewith, said valve member having a disk-like wall formed integrally with said cylindrical side walls thereof, the said disk-like wall having a curved portion adapted to seat in and close the said aperture in the bottom wall of the valve seat and also having an annularprojection on its lower surface adapted to seat in the annular recess in the said bottom wall of the valve seat.

JOHN MILLS.