US 1857015 A
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Description (OCR text may contain errors)
May 3, 1932- C. M. GERE 1,857,015
VENTED CONTAINER AND RELIEF' VALVE THEREFGR Filed Dec. 2, 1930 me/nto@ C'Zaz'z" 1y. Gere aub/:Maga
' Patented May 3, 1932 l UNITED STATES CLAIR M. GEREOF BELFAST, NEW YORK VENTEDJCONTAINER AND RELIEF VALVE THEREFOR Application led December 2, 1930. Serial No. 499,600.
This invention relates to containers, particularly adapted to the retail packaging of cheese or other products in which a curing process involving `a fermentative reaction of the product` may take place withinthe container.
The invention also relates to the construc- .tion of a relief valve which while of general utilityis adapted in particular to the ventin of such containers ,as are above describe to relieve them of excess pressure of the carbon dioxide gas generated by the fermention and preventing the entrance of atmospheric air into the container..
Other objects of the invention will appear as the following-description of illustrative embodiments thereof proceed. Y
In the drawings in which the same characters of reference have been v employed zo throughout the severaliigures to designate ldentlcal parts: y l Figure 1 is a, side elevation, partly in section showing the mouth portion of a jar or container; s Figure 2 is a cross section taken along th line 2 2 of Figure 1;
Figure 3 is a perspective view of the liner and valve; l Figure 4 is a perspective View of the valve an per se;
Figure 5 is a vertical section through another type of jar or container;
Figure 6 is a top plan view of the lid.. the central portion being broken away to show the valve; and
Figure 7 is perspective view of the lid,
v airanged in such position that it can be viewed from beneath.
Referring now inv detail to the several figures and first adverting to that form of theI invention shown in Figures 1 to 4, the 1 ar 1 which maybe of glass or anv other suitable material is provided with a lid 2 of tin, said lid being" secured to the mouth 3 of the jar,
' 45 by having the sides of the lid crimped beneath the peripheral bead 7 which surrounds the mouthof the jar. The crimping may not be continuous but may be provided at spaced intervals. t A liner 8 ofpaper which is normally in the form of a flat disk lies within the lid 2 and when the latter is crimped against the mouth of the jar, the edge of the liner is compressed between said jar and an' annular rib 8 pressed The curing or aging of the cheese may therefore take place within the container with the attendant advantages that there is no loss of i weight through evaporation, no formation of n rind and no opportunity for mould growth.
It is known however, that the fermentative process is accompanied by the evolvement of carbon dioxide gas with the risk of swelling the head of thecontainer or perhaps bursting it. It therefore, becomes essential to provide the container with some means for relieving it of the excess pressure of the carbon dioxide gas and at the same time preventing access of atmospheric air to the containedproduct.
lI have therefore, designed a valvel for this purpose which through its inherent exibility is adaptable to any type of container or to be attached to any kind of surface andthe cost of which will add only negligibly to the entire cost of the container. This valve is shown per se in Figure 4, and in combination with the lid and liner in Figures 1, 2 and 3. The valve which in general is designated by the reference character l0 comprises a pair of disks of flexible material such as rubber, suy perposed and secured together in any suitable manner as by being cemented by rubber clement.V The lower disk 11is provided with a slit 12 which may preferably be in the, form of short slits intersecting at right angles as shown. The upper disk 13 is formed with a hole or well 14 with which the slit inthe lower disk communicates. In that form of the in- ,vention shown in Figure 1, the lowenface of f the valve is cemented to the upper side of the 45 of atmosphere, the principal purpose of the in a fluid-tight manner. The latter element with said chamber and said li'er member has a hole registering with the slit i12 and havlng an aperture exposlng sald lntersect-I placing said slit in communication with the 1n sl1ts. chamber 'of the container. 'The lid 2 is n testlmony whereofI aiiix llpy s1 ature. punched with a small vent 16 registering with l CLAIR G RE. 70 the well 14.
In operation, when the pressure of the carbon dioxide gas in the container'rises above a determined value, the middle portion of the lo lower disk, which is unsupported by the upper 75 disk, bulges out into the well 14 'causing the slit 12 to spread, creating an opening through which the excess pressure of carbon dioxide is relieved. The lower disk 11 then resumes its 15 planar condition closing theslit so that atmospheric air will not enter to diffuse with so and dilute the carbon dioxide gas retained'in the containers. Itis to be understood that mould cannot propagate except in the pres- 20 ence of oxygen and that' while the carbon di- 8'5 oxide gas remains undiluted, the cheese is surrounded by a sterile medium.
It is of course, optional in thatform of the invention shown in Figure 1 to cement the valve either to the liner or to the inner sur- I 90 face of the tin lid itself. f
' In that form of the invention shown in Figures 5, 6 and 7, the liner is dispensed with and the lid is of slightly different type which however, is immaterial to the purpose of the` invention. The valve 10 in this instance is cemented to the lower face of the lid. The operation is exactly the same, the lower disk 11 bulging under pressure and resuming its normal form in which the slit is closed, when the pressure has been relieved.
It is to be understood that the valve being flexible lends itself readily for attachment to any surfaces whether they be straight or dished or irregular in contour, and that the slit forms an eiiicient means for preventing the entranceof atmospheric air into the container under conditions in wwhich 'the pressure within the .container is never less than, that valve being to prevent diffusion of the atmosphere with the contained carbon dioxide gas. l
It is obvious that in addition to its, indi- 50 cated preferred utility, the container with the valve therefore is, equally well suited to the packaging of Sauerkraut or other foodstuffs in whichfermentative processes are taking place. 7 55 What I claim is:
Receptacle comprising a container and a lid member therefor,I a liner member in said lid member clamped between said lid member and said container, and a relief valve 00 between said lid member and said liner meml 125 ber, said valve being secured to one of 4said members and having transversely disposed intersecting slits on its lower face and a communicating chamber onits upper face, said 66 lid member having a vent in communication 13