US1192135A - Closure for containing vessels. - Google Patents

Description

W. F. STONE. cLosURE Foa corvmm'wfs vEssELs. APPLICATION FILED- JN- 20, l9l5 1,1 l S, A Patented July 25, l1916.

WILILrAr/r n. STONE, or PORTLAND, MAINE, Assisnon To NATTONAL METAL SEAL .CORPORATION A conronATion or MAINE.

CLOSURE FOR CONTAINING VESSELS.

. Specification of Letters Patent.

Patented July 25, i916.

Application filed January 20, 1915. 4,Serial No. 3,200.

,tainingvvessels and particularly to a one piece closure for a vessel having a flanged neck or nozzle.

The closure of my present especially applicable to that class of containing vessels which are to be used from time to time after their initial opening. One objection'to the closures now in use on this class of receptacles is that the` cap is apt to drop down over the nozzle mouth when pouring and thus interfere withthat operation or that when swung up it drops-l back too far and sometimesI 'becomes disengaged from the flanged vessel neck. To the end therefore of providinga closure of this general type which can not drop down over the vessel mouth when pouring and cannot accidentally disengage from the iianged vessel neck lin its opening movement, I have.

devised my present invention. I will discuss the form shown as illustrative of the principles ofmy invention, first generally to set forth the principles involved.`

In the form shown, the depending skirt of the cap has a hinge lug which is initially crimpedunder a shoulder about the nozzle mouth.f rIhis shoulder is preferably formed as a continuously recessed rim by upsetting the metal of thevessel mouth. In the opening movementl ofthe cap, the hinge lug turns ontlie shoulder as a pintle and begins tobind Over-its inner edge to hold the cap out ofthe Way in pouring and to lock it against.accidentalv dislodginent from the --about the circumference thereof and may vessel. The hinge lug may be crimped underthe shoulder of the nozzle at any point be combined with a plurality of locking lugs formed on the circumferential skirt of the cap and adapted yfor engagement vvithfsaid continuously recessed rim to lock the cap in a 1 swing. thereof ai p wardly i Aand array;

invention is the delivery opening. lVhere the'container' 1s to be usedfrom time to timeafter its initialopening, an uncrimped locking lug is Yprovided which lfrictionally engages the lange of its nozzle and acts as a temporary The construction and operation of my invention will be more fully disclosed in the specification which follows.

Inlthe drawings forming a part of that specification I have shown as an illustrative embodiment. a form of closure which has proven satisfactory in practice and well adapted to the requirements of manufacture. l Throughout specification and drawings like reference numerals are correspondingly fvapplied, and in these drawings: Figure l 1s a rea-r view of a closure in accordance with my invention, applied to a iianged container nozzle in sealing position. Fig. 2 is a. front elevation thereof. Figs. 3 and 4 and 5 are .l enlarged partial sections illustrating the locking action indicated hereinbefore. Fig. 6 is a partial underneath section of the noz-, zle showing the cap closed, and Fig. 7 is an underneath View showing the cap fully opened.

I have indicated at 1 a vessel mouth or nozzle which isvpreferably made of sheet metal or other suitable material. The nozzle has a continuously recessed' rim about its month formed by upsetting the edge of the mouth. This leaves a horizontallydisposed annular fla-nge 2 which affords a flat seat for' the seal or pack 21. Theflange 2 is, bent` downwardly at substantially right angles to provide a continuons circumferential skirt 3 disposed in a vertical planesubstantially parallel to the nozzle 1. The

skirt 43 is bent inwardly at 81 and extends as the larc of a circle for a slight distance, and is then deflected tangentially inwardly and upwardly and extends as an upwardly directed, continuous portion 3? terminating in an edge. 4, surrounding the mouth. .The portion .32 provides a continuous pintle over which the hingingy lug ofthe closure may bel crimped at 'any point about its-circumference. This portion 4is spacedv from the nozzle so as to leave a continuons recess l toward which the inner edge of the hinge lug ofthe closure moves kwhen vthe Aclosure ris, swung to fully Openposi'tlon Thefclosure'comprlses a cap S'overlylng vthere Instants/eins' `G 0f" the Vnozzle -and i rie 4 carrying' the pack il? which seats tightly a gainst the liat rim i2 oi the nozzle when the y;.ontainer sealed. The cap 5 has a continuous pendent skirt or iiange l inclosing the pack 21 and partially overlying the vertical overhang` 3 oi the nozzle. (ln one side of the cap and depending from the lower edge oi' the iangre l is a hinge hunr Sl. The lug 9 is adapted to he lient. up undeg'the curved portieri fl ot the nozzle l and to he clenched under said portion at any point ahont its circumference so as to form a permanent hinge. The lug turns on the portion 31 as a' pintle in the opening` and closing' movement o'l the inap.

T he hinge lug consists of a relatively liroad hase portion formed as an extension ot' the pendent flange l curved concentric with the outer edge of the nozzle and fitting thereon when the cap in closed position. The lunr has an abrupt shoulder 91 at each end of its hase and tapers inwardly and terminates'in a resilient pointed tip disposed under said rounded portion and .adapted to ride over said rounded portion in the opening;` movement ot2 the -ap and onto the tangential portion, and he drawn down against the edge -t thereof by the areh of the hase portion. ln the openingr movement of the cap the lug moves upwardly around the portion 31 and over the edge 4 thereof an tends to ride into the recess 41 between sairl portion 31 and the overhang 3 of the rim. As the cap approaches its fully opened `position. the lug' rides over the edge l and in the further opening' movement of the cap the lug;- is sprung.T and its tip end drawn down over the edge Je with a tight bind by the arch ot its hase portion.

The action of the hinge lug in the openingniovemont of the cap is illustrated in detail in Figa. 2:3, #i and wherein the sueccssive positions ot' the lug during the suet-essire phases of opening movement have heen shown on a slightly exaggerated scale. llrlerrinpi first to Fig. 3, wherein the position which tll'e lung occupies when the cap is seated has heen indicated.` the free end of the lunA is represented as conforming closely to the curvature El* of the flange 3. As the cap opens. the tip end ot the luf: tends to follow the normal truly eircular path inrlirated in dotted lines, Fig. y provided for it hy the truly circular curvature 2, but is detlected as it rides upwardly alone; said portion into the full line position by the tangential portion of the iange. This produces a stress on 'the tip end of the lug which. having.;` a lgreater.degree of resiliency than itsl hase portion. yields inwardly and downwardly.` and is sprung:` over the portion This tendency on the part o1 the luelr to spi-iurer oui is further augmented hy the hindingl action of the cap over the edge of the flange 3 (indicated at 3;- in Fie. 4). In

the uitheropening, the eap is drawn down tightly over the edge i oi the portion ill. This 'final position of the lug is indicated in Fig. wherein the tip end of the lug.; is represented as having ridden over the edge l and outwardly toward the overhang, and as heilig tightly engaged over said edge. 'lhe opening movement ot' the cap is linally stopped hy the shoulders il* ot' the lug hinding against the curved portion 31 ot' the (lange At this phase. therefore. both the tip and the hase or the lug are engaged with the shoulder so that the cap is tightly held in fully opened position. This action is 'further illustrated in Figs. G and 7, wherein the externally eonvexed and internally eonoavedcontainer rim and the two positions of the lug' relative to said rim corresponding to the closed and open positions of the cap. are indicated. In the closed posh tion of the cap. the eoncaved lngr eonlol'nis to the extern-.il eonvexity of the container rim, as shown in Fig. o. As the cap opens,

the lug moves inwardly so that when thecap is 'fully opened the lug.T is no longer in a position of conformity to the oonvexity ot' the container rim hut has assumed a position of opposed eoncavity to the eoueavity of the edge 31 of said rim, as shown in Fior.

7, thus securing the resilient eli'eets ot' the arched portions under pressure.

The initial sealing of the Container is et'- i'ected hy one or more locking lugs l() struelr. from the metal of the flange 2 on the side of the cap opposite the hinge lug 9. The lugs 1Q are adapted to he clenched under the shoulder fl when the container is initially sealed.v ln opening the container for the first time a suitah'le opening implement is inserted under the lugs 10 to spread or pry them outwardly 'from the nozzle. The cap may then he swung hack to uncover the delivery opening.

lVhere the container is to he used from time to time it is desirable that Ine-ans he provided for temporarily locking the eap in sealing posit-ion. This is eii'eeted in the present invention hy an nncrimped locking lug.;l l1 which formed as a relatively shortdownward extension oi the skirt 7 and is preferably disposed between the pair of loeling;1 lugs 1l). "hen the. cap is initially scaled, this lug engages the ilanfze 3 to assist the locking lugs in sealing the container. After the container has heen initially opened. this lug is usually sullicient to temporarily look the cap in closed position.

After the container has been initially sealed hy crimping the lookingr lugs under the shoulder l the lugs are given the form liest illustrated in Fig. After crimping. each hu.r has an outwardly arched portion 11.). extending.; in the direction oi circumference oi the flange tl. 'When the eapis snapped down'into closed position, the lower edge of the arch engages the liange 3 at the point 31 where said iiange is turned upwardly to form the portion 32.. Below the arched lportions l2 the lugs are deflected slightly outwardly to provii'le a somewhat elongated extension under .which the open-- ing` implement may be inserted in prying open the lugs The device ol the present invention af 'ords a tight permanent or semi-permanent seal which can be produced inexpensively and in `which the liability of the cap intertering with the pouring or falling away from the iiontaineris wholly obviated.

Various modifications in the form and construction of .my device may obviously be resorted to if Within the limits of the appended claims. i

lVhat li therefore claim and desire to secure by Letters Patent is:

l. In combination with a container having` `a curved shoulder portion, acap having a hinge member disposed for pivotal engagement with said shoulder` said memberl having an arched basal portion curved substantially concentric with said curved portion Qi the shoulder and terminating in a de- `iorn'iable tip 'portion disposed to ride over said curved portion in the ope-ning movement of the cap and to be drawn downwardly over the edge of said curvedportion by the arch oi said basal portion.`

2. In combination with a container having a shoulder including a portion extend;

inici, substantially as the are of a circle and a portion extending substantially tangentially thereto, a closure having a hinge me1nber bent in substantial .conformity to 'said arenal portion of the container shoulder and disposed to normally coliform to said arcual portioin but deflected into a position of nonconformity by I-said tangential portion in the opening movement of the closure wherein it said curved portion of the container shoulder and defiected by said tangential portionof said shoulder out of its normal positiony of conformity teja position of .nonnonliormity in which it binds over the edgeof the tangential portion.`

In testimony in presence of 'two Witnesses. l

y vWILLiAM` F. sToNnf lVitnesses: i

HOWARD L, HU'roHlNsoNf, WM. L. WALKER.

whereof l. aliix .my signature

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