US1440986A

US1440986A - Vacuum jar closure

Info

Publication number: US1440986A
Application number: US472447A
Authority: US
Inventors: Hammer Charles
Original assignee: AMERICAN METAL CAP CO
Current assignee: AMERICAN METAL CAP CO
Priority date: 1921-05-25
Filing date: 1921-05-25
Publication date: 1923-01-02
Anticipated expiration: 1940-01-02

Description

Jan. 2, 11923. Il,44,986

c. HAMMER.

VACUUM JAR CLOSURE. FILED MAY 25. 1921.

Mow/wax marfeaflmmezf $3) 5 atto'cmew I Patented Jan. 2, was.

UNHTED snares Lldllfitlfi PATENT @FFHCCE.

CHARLES HAMMER, OF QUEENS, NEW YORK, ASSIGNOR TO AMERICAN METAL CAP COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF 1\TEW YORK.

VACUUM JAR CLOSURE.

Application filed May 25, 1921. Serial No. 472,447.

To all whom it may concern:

Be it known that I, CHARLES HAMMER, a citizen of the United States, and a resident of Queens, in the county of Queens and State of New York, have invented certain .new and useful Improvements in Vacuum Jar Closures, of.which the following is a specification.

This invention relates to closures for containers, such as tumblers or wide-mouthed jars, and is of the character that is forced down -on the container by a suitable sealing member, such as a ring chuck, with a compressible sealing ring or gasket located between the closure flange and the jar outer wall atethe top; and which is secured in such position by the flan e of the closure being re-formed to'strongy compress the gasket between the flange and the jar wall.

One object of this inventlon is to provide an improved closure of this character, that is secured in sealing position on the jar by merely pressure vertically. downward by a suitable sealing member, such as a ring chuck, that will cause the flange wall to be re-formed and, very strongly and securely hold the closure on the jar, by the compression of the gasket between the Ire-formed flange and the jar wall; and whereby the use of a special sealing member such as one having rotary arms carrying. rolls, is obviated and simple downward pressure will produce the sealing. p

A further object of the invention is to provide in a closure of this character, a.

form of bead orchannel in the flange, that will serve, to loosely hold or retain the sealing gasket in the flange before sealing b-y having an open angular form; which angular form during the sealing operation main-v tains its particular angular shape, but is so Shifted in position that the angular portion will face downward in the sealed closure, instead of upwardly as when first applied.

A further object of the invention is to provide in' combination with a closure of the character set forth, an extension above the gasket-receiving portion thatis pro vided with an inwardly extending bead, that is adapted to have a frictional engagement with the jar wall on forcing the closure down on the jar, and which will itself have a holding engagement with the jar wall without having its shape changed by the .sealing member, but merely engage the jar by reason of a slight'reduction of internal diameter over that of the jar wall where engaged by the bead.

One of the important objects of thepresent invention is the revision of ametal closure for'hermetica ly sealing a glass container, which closure comprises a top having a depending flange having at its lower edge an inwardly bent channel-forming portion so located and positioned relatively to the flange that it will hold a gasket in place, but which channel-forming portion is, during the reformation of the depending flange, also reformed by the sealing pressure into a different position so that it will efliciently hold and seal the gasket on the jar, and at the same time enable the closure to be hermetically sealed, so that without applying any direct pressure to the gasket holding portion it nevertheless has its position, as it were, changed.

In the accompanying'drawing illustrating embodiments of my invention, Figure 1 shows a jar with the closure sealed thereon, being in vertical section at the upper part.

Fig. 2 is a perspective View of the closure, partly in section. i

Fig. 3 is a sectional view enlarged at one side of the closure and jar, showing the application of the cap by suitable means.

tion.

As set forth, the closure comprises a top 2, from which depends an annular flange orrim, and which device is made of comparatively thin sheet metal. The flange is shown as having at the lower portion a substantially V-shaped angular gasket-retaining channel, that is formed by a bottom wall 3 shown as flat in section, in annular contour being substantially conical. This wall which is the free bottom portion of the flange, connects with the upper wall 4. of the channel portion, meeting at a comparatively sharp angle as shown. The wall 4 is also substantially conical in annular contour adjacent the angle, but at its upper portion it curves inwardly, so that it is convex on the outer portion; and thereupon extends inward to connect with the top wall 2. In the preferred form, the top 2 is furnished with an arch portion 5 at its outer part, adapted to engage the top rounded edge of the jar wall 6, see Figs. 3 and 4. This arch portion 5 merges into the convex portion 7 of the outer wall 5, to form a sli htdep'ression or shoulder at 8 as shown. The purpose of the latterv is toreceive the thrust of a sealing ring 9, that may be forced downwardly to engage the walls 4 and 7.

The gasket 10 of compressible material such as rubber or composition, is placed inside of the flange and will rest loosely on the lower wall 3 of the angular portion, as indicated in Fig. 3. This gasket may be of an preferred sectional shape. I

pon placing the closure on the jar, as indicated in Fig. 3, and applying pressure vertically downward on the convex portion 7 and shoulder 8, the entire flange portion is re-formed and changes its shape to thatindicated in Fig. 4, the wall 3, that extended upward relative to the top plane of the cap, now extending downwardly. But it will be observed that the lower angular wall 3 still maintains approximately the same angle with the adjacent wall 4, so that this channel is not itself re-formed but merely changes its position. The convex wall 7 in the flange,

has now become a concave wall 12, extending from the upper angular wall 4 of the channel to the arch portion 5, that is now slightly flattened to engage the rounded edge of the jar, as shown in this figure. Since the angular V-shape'channel has been forced inwardly the gasket 10 will be strongly compressed between this channel, and the opposite sidewall of the jar and will be somewhat extended upwardly between the concave wall 12 and the jar wall, as shown. By this sealin operation, the walls 4 and 7 are move inwardly a considerable distance, whereby the angular portion or channelis moved nearer to the jar wall, as will be apparent by comparing Figs. 3 and 4. It will be also seen that the lower angular wall 3 is still spaced from the jar wall and does not engage the same. This will leave a small portion of the gasket exposed, that will facilitate the use of a suitable sharp implement to loosen and remove the closure, that can be forced into the exposed gasket and serve ,to pry out the flange and to loosen the gas ket. A closure of this character has been found, by repeated use, to have avery strong grlp on the jar, by reason of the rather long concave portion that is forced inwardly with a compression of the metal walls, as well as thesharp angular portion that serves to retain the gasket in its compressed position.

In Figs; 5 and 6 is shown a modification in which substantially the same arrangement of flange and gasket is provided, but an extension is provided between the arch portion and the shoulder portion, that contains an inwardly extending bead or rib, for the purpose ofhaving a frictional binding engagement with the wall of the jar at this place. As shown in Fig. 5 the closure has a flat top portion 14, and the flange at the bottom is the an lar portion formed by

conical walls

15 and 16, the latter having a convex portion 17 and a shoulder at 18. The arch portion 19 of thetop connects with the shoulder portion 18, by a comparatively small inwardly extendingbead or rib 20, as shown. When this closure is applied to a jar, the bead will first engage the jar wall gasket, as shown 1n Fig; 4, while at the same time the bead 20 will have a strong frictional engagement with the jar wall and assist in retaining the closure in sealed position.

In a patent granted to me July 3, 1917, N 0. 1,231,881, is set forth a closure in which the gasket is compressed between the flange and the jar wall, with a sealingv bead arranged below the gasket for frictional en-' gagement with the jar wall. In another patent of mine 1,335,054, a sealing bead also engages the jar wall frictionally, and above the bead is a gasket that is pressed against the jar wall. But in the present invention the bead shown in Fig. 5 is arranged at the upper part of the flange, while 0 below the bead the gasket is compressed between the flange and the jar wall. Various changes in and modifications of the construction herein set forth may be made without departing from the spirit of this invention or sacrificing its advantages.

What I claim is: i

1. A metal cap provided-with a depending flange having the lower edge thereof turned into form an annular transverse wall adapted-to receive a gasket, said wall having a width at least as great asthe thickness of the gasket and having the major portion thereof lying outside of the inner peripheryof the gasket before application of the cap to the 2. A metal cap provided with a depending flange having the lower edge thereof turned in to form an annular transverse wall adapted to receive a gasket, said wall having a width at least as great as the thickness of the gasket and having the major portion thereof lying outside of the inner periphery of the gasket before application of the cap to the jar, the construction being such that the seallng pressure on the cap will transform the inturned edge from one angular position I relatively to the flange to a different angularposition relatively to said flange.

3. metal. cap provided with a depending will be forced from its normal flange having the lower edge thereof turned in to form an annular wall adapted to receive a gasket, said wall having a width at least as great as the thickness of the gasket and having the major portion thereof lying outside of the inner periphery of the gasket before application of the cap to the jar, said flange having an inwardly extending bead above the gasket for frictional engagement with the side of the container.

4. A metal cap provided with a depending flange having the lower edge thereof turned in to form an annular wall adapted to receive a gasket, said wall having a'width at, least as great as the thickness of the gasket and having the major portion thereof lying outside of the inner periphery of the gasket before application of the cap to the ar, the construction Being such that the sealing pressure on the cap will transform the inturned edge from one angular position relatively to the flange to a. different angular position relatively to said flange, said flange having an inwardly extending bead or rib above the gasket for frictional engagement with the side'of the container.

5. A metal closure for hermetically sealing a glass container comprising a top having-a depending flange having an inwardly bent channel forming portion at its lower edge'adapted to receive a gasket, the sealing pressure on the closure adapted to transform the position of the channel-forming portion into a different position and the depending flange into a different shape relatively to each. other and the container.

6. A metal closure for hermetically sealing a glass container comprising a top having a depending flange having an inwardly bent channel-forming portion at its lower edge adapted to receive a gasket, the sealing ressure on the closure adapted to trans orm the position of the channel-forming portion into a different position and the depending flange into a diflerent shape. relatively to each other and the container, said flange having an annular container engaging bead above the gasket.

7. A metal closure for hermetically sealing a glass container comprising 'a top having a depending flange provided at its lower edge with an inwardly and upwardly bent channeLforming portion adapted to receive a gasket and located at,a predetermined angle to the flange, the construction being such that on the application of a sealing pressure to the closure, said bent portion position to a downward position.

8. A metal closure for hermetically sealing a glass container comprising a top having a depending flange provided at its loweredge with an inwardly and upwardly bent channel'forming portion adapted to receive a" gasket and located at a predetermined located at a. predetermined. angle tothe.

flange, the construction being such that upon the application of sealing pressure to the cap the flange will be forced toward the con tainer and said bent portion will beforced from its normal position into a downward position while retaining however substantially the same angle relatively to the flange.

10. A metal closure for hermetically seal ing a glass'container comprising a top hav- I ing-a normally outwardly flared depending flange provided at its lower edge with an inwardly and upwardly bent channel-forming portion adapted to receive a gasket and located.- at a predetermined angle to the flange, the construction being such that upon the application of sealing pressure to the cap the flange will be forced toward the container and said bent portion will be forced from its normal position into a downward position while retaining however substantially the same angle relatively to the flange,

said flange having a sealing bead or rib above said gasket.

11. A metal closure for hermetically sealing a glass container comprising a top having a convex walled depending flange'adapted by sealing pressure to be transformed into a concave walled flange, said flange having at its lower edge a bent channel forming portion adapted to receive a gasket and located at a predetermined angle to the flange,

said bent channel-forming portion beingadapted to have its angular position relatively to the flange changed .during the transformation of the depending flange from a convex walled flange to a concave walled one.

12. A metal closure for hermetically sealing a glass container comprising a top hav-.

ing a convexwalled depending flange adapted by sealing pressure to be transformed into a concave walled flange, said flange having at its lower ddge a'bent channel-forming portion adapted to receive a gasket and located at a predetermined angle to the flange,said bent channel forming portion being adapted to have its angular position relatively to the flange changed during the transformation of the depending flange from a convex walled flan e to a concave walled one, said depending flange also having above the gasket a sealing rib or bead.

13. A metal closure for hermetically sealing a glass container comprising a top having a depending side wall having at its lower edge an inwardlyprojecting bent portion' located at an angle to said side wall and adapted to receive a gasket, the construction being such that on the application of a sealing pressure to the closure said bent portion will be forced from its normal position into a downward position.

14. A metal closure for hermetically sealing a glass container comprising a top having a depending side wall having at its lower edge an inwardly projecting bent portion located at an angle to said side wall and adapted to receive a gasket the construction being such that on the application of a sealing pressure to the closure said bent portion will be forced from its normal position into a downward position and the side wall into a different shape.

15. A metal closure for hermetically sealing a glass container comprising a top having a depending side wall having at its lower edge an inwardly projecting bent portion located at an angle to said side wall and adapted to receive a gasket, the construction being such that on the application of a sealing pressure to the closure said bent portion will be forced from its normal position into a downward position, said flange having above the gasket a container engaging sealing bead or rib.

16. A metal closureifor hermetically sealing a glass container comprising a top having a'depending side wall having atits lower edge an inwardly projecting bent portion located at an angle to said side wall and adapted to receive a gasket, the construction being such that on the application of a sealing pressure to the closure said bent portion will be forced from its normal position into a downward position and the side wall into a different shape, said flange having above the gasket a container engaging sealingbead or 17. A sealed package comprising a glass container and a closure comprising a top having a depending flange provided at its lowenedge with an inwardly extending downwardly bent portion terminating in a free edge adjacent to the container and formingwith the flange a channel receiving portion and a gasket located therein and strplngly compressed against the container W3;

18; A sealed package comprising a glass container and a closure comprising a top having a depending flange reformed from a concaved wall flange and provided at its lower edge with an inwardly extending downwardly bent portion terminating in a free edge adjacent to the container and forming with the flange a channel receivin portion, and a gasket located therein and strplngly compressed against the container wa 19. A sea-led package comprising a glass container and a closure comprising a top having a depending flange reformed from a concaved wall flange and provided at its lower edge with an inwardly extending downwardly bent portion terminating in a free edge adjacent to the container. and forming with the flange a channel receiving portion, and a gasket located therein and strongly compressed against the container wall, said flange having above said deformed p rtion a container engaging sealing bead or r1 20. A closure for a jar that has a substantially straight outer wall at the top, comprising a top having an arch portion at the margin arranged to engage the top rounded edge of the jar, and a skirt or flange portion projecting downwardly and outwardly from the arch portion, with a substantially V- v shape angular gasket-retaining channel at the lower portion with the lower free wall of the angular portion extending inwardly and also upwardly relative to the plane of the closure top wall, the flange above the angular channel portion being curved convex outwardly and merging into the lower part of the arch portion to provide a shoulder for engagement with a chuck or sealing ring, and a ring gasket loosely resting on the lower wall of the angular portion and engaging the inner wall of the said curved portion below the shoulder, whereby downward pressure on the shoulder portion and convex wall will cause inward move-- 'mentof the convex portion and also of thesaid angular channel portion so that the lower marginal wall of the channel portion will project inwardly and downwardly relav tive to the plane of the wall of the closure, and the flange from the arch portion will extend downwardly in a substantially straight conical form to merge into the upper wall of the said angular channel portion that will extend outwardly therefrom, and the gasket will be strongly compressed between the jar wall, and the angular channel portion and flange above the channel portion.

21. A sealed package comprising a jar that has a substantially straight outer wall at the top, and a closure composed of a top having an arch portion at the margin arranged to engage the top rounded edge of the jar, and a skirt or flange portion pro-' of the angular portion extending inwardly and also downwardly relative to the plane of the closure top wall, the flange below the arch portion being extended downwardly in a substantially straight conical form to merge into the upper wall of the angular channel portion that will extend outwardly therefrom, and a gasket strongly compressed between .thesaid jar wall, and the annular channel portion and flange above the channel portion.

22. A closure for a jar comprising a top and a skirt or flange portion projecting downwardly and outwardly wit-l1 a substantially V-shape angular gasket-retaining channel at the lower portion with the lower free wall of the angular portion extending inwardly and also upwardly relative to the plane of the closure top' wall, the flange above the angular channel portion being curved convex outwardly and merging into the upper portion to provide a shoulder for engagement with a chuck or sealing ring, and a ring gasket loosely resting on the lower wall of the angular portion and engaging the inner wall of the said curved portion below the shoulder, whereb'y downward pressure on the shoulder portion and convex wall will cause inward movement of the convex portion and also of the said angular channel portion so that the lower marginal wall of the channel portion will project inwardly and downwardly relative to the plane of the wall of the closure, and the flange will extend downwardly in a substantially straight conical form to merge into the upper wall of the said angular channel portion that will extend outwardly therefrom, and the gasket will be strongly compressed between the jar wall, and the angular channel portion and flange above the channel portion.

tion extending downwardly and outwardly with a substantially ll-shape angular gasketretaining channel .at the lower portion with the lower free wall of the angular portion extending inwardly and also upwardly relative to the plane of the closure top wall, the flange above the angular channel portion being curved convex outwardly and merging into the lower part of the upper portion to provide a shoulder for engagement with a chuck or sealing ring, and a ring gasket loosely resting on the said lower wall of the angular portion and engaging the inner wall of the said curved portion below the shoulder, whereby downward pressure on the shoulder portion and convex wall will cause inward movement of the convex portion and also of the said angular channel portion so that the lower marginal wall of the channel portion will project inwardly and downwardly relative to the plane of the top of the closure, and the flange from the upper portion will extend downwardly in a substantially straight conical form to merge into the upper wall-of the said angular channel portion that will extend outwardly therefrom, and the gasket will be strongly compressed between the jar wall, and the angular channel portion and flange above the channel portion.

Signed at New York city, N. Y., on May 18, 1921.

in .i'. HR.