US2177224A - Evacuated container - Google Patents

Description

Oct. 24, 1939. H. E. OHLR OGGE EVACUATED CONTAINER v 2 Sheets-Sheet 1 Filed July 5. 1934 L I Q Invenlor E. 'a/e/r w m H A Oct. 24, 1939; H; OHLROGGE 2,177,224

EVACUATED CONTAINER Filed July 5, 1934 2 Sheets-Sheet 2 Inventor E. @Wm 6 Patented Oct. 24, 1939 UNITED STATES svaconrcn comma Herbert E. Ohlrogge, Merrill, Wis., assignor of thirty-three one-hundredths to Kurt Gerken,' and thirty-three one-hundredths to C.- 0.

Hughes, Merrill, Wis.

Application July 5, 1934, Serial No. 733,926

2 Claims. (Cl. 21556) indicated above in which the contents make no metallic contacts which would contaminate the same.

- Other objects and advantages of my invention will be apparent from a reading of the following description in connection with the drawings, wherein for purposes of illustration I have .shown a preferred embodiment of my invention. 20 In the drawings:

Figure 1 is a transverse vertical sectional view through the embodiment.

Figure 2 is a plan view of the bottom of the outer cover.

15 Figure 3 is a bottom plan view of the inner Y cover.

Figure 4 is a side elevational view of the upper part of the container showing the outer cover in place.

Figure 5 is a plan view of the compressible valve.

Referring in detail to the drawings, the numeral 5 refers generally to a glass or other similar transparent material cylindrical con- 5 tainer which has the outset upper portion which is thickened as indicated and provided with the exterior screw threads 1 below its upper edge and the reduced upper portion 8 defining the radially outwardly arranged shoulder 9 above 40 the screw threads I.

[The inner cover generally designated l comprises the plain metal disk ll having the cen-- tral hole l2 therein and provided at its periphery with the inverted U-shaped flange I: which forms a channel ll receiving the reduced upper portion 8 on the upper end of the transparent or translucent receptacle 5. As shown in Figure 1 the channel ll closely receives the annular portion 8 and the disk portion ll of the inner cover 50 is at a level below'the upper end of the portion 8 when the inner cover is in place.

The outer cover generally designated l comprisesthe metallic disk portion Ii which has the thickened depending annular portion 11 at its 55 radially outward edge which terminates in the depending flange l8 which has the plane portion I! for closely engaging the radially outward side of the inverted U-shaped flange l3 0n the inner cover, and below this flange portion the internal threads 20 are arranged to engage with the 5 threads 1 on the receptacle 5, whereby the outer cover is clamped to the receptacle 5 and the inner cover is clamped to the receptacle 5, and the inner and outer covers clamped to each other in a manner to positively seal the container and 0 positively prevent the passage of air into the container from the outside thereof or from the container outwardly,

Around the middle of the disk It of the outer cover are circumferentially spaced arcuate lugs 15 2| which areformed preferably by pressing them into the disk It so that they depend from the underside of the outer cover sufficiently to engage the top of the inner cover and properly space the outer cover from the inner cover when the covers are in place.

The lugs 2| form the chamber in which is located the segmental cross section circular compressible valve 22 which is arranged over the hole l2 in the inner cover. The valve 22 is of at appropriate diameter and thickness so that when the outer cover and the inner cover are in place, the valve will be sufllciently compressed over the hole l2 in the inner cover that entrance of air will be positively prevented, and a sufliciently high vacuum may be retained within the receptacle to preserve the contents of the receptacle, such as green cheese and the like substances which are readily perishable when, contacted with air. ,i r

The outer cover is provided with; a pair of gas escape holes 23, 24 which permit escape of gas from the receptacle which wasgenerated by the green cheese or the like within the receptacle and due to its pressure causes a movement of the 40 valve 22 away from the opening l2, sufiicient to pass the gas into the space between the covers. The shape and arrangement of'the valve 22 is such to permit this escape of gas under pressure generated within the receptacle, but positively prevents the entrance of air which may find its way into the space between the covers through the holes-23, 24, therebypermittlng proper development of the cheese or the like while positively preventing air contamination thereof. Because of the fact that no metal touches the cheese or the like in the glass. or similar material receptacle, the covers being spaced above the top of the cheese or the like, the cheese will also be prevented from being contaminated, such as, 86

for instance, takes place in instances where the cheese is packed in contact with tin receptacles.

Although I have shown and described herein a preferred embodiment of my invention, it is to be definitely understood that I do not desire to "limit the application of the invention thereto,

and any change or changes may be made in materials and in structure and arrangement of parts, within the spirit of the invention and the scope of the subjoined claims. What is claimed is: a LAn evacuated container comprising a receptacle, an inner cover closing said receptacle, and an outer cover on said receptacle and enclosing said inner cover, a part of said outer cover having spacer elements resting on the top of said inner cover whereby portions of the outer cover are spaced from portions of the inner cover, said spacer elements being arranged in circumferentially spaced manner around a concentric opening formed in said inner cover, said spacer elements thereby defining an outer chamber surrounding an inner valve chamber, said outer cover having openings communicating with the exterior atmosphere and with said outer chamber only, said concentric opening communicating only with the interior of said receptacle and with said valve chamber, and a valve in said valve chamber and normally closing said concentric opening,

2. A stopping device of the type including a. rigid cap adapted to be secured to the edge of the neck of a bottle which comprises, in combination, a rigid circular member fitting in said cap so as to be caught between the inner face of said cap and the edge of the bottle neck, both of said cap and said circular member being provided with at least one hole, and a resilient element caught between said cap and said circular member so as normally to cover the hole provided in said member, said element being adapted to be deformed under the effect of a predetermined overpressure in said bottle, so as to con- 20 nect the respective holes of said cap and said member together.

HERBERT E. OHLROGGE.

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