US1066078A - Jar-closure. - Google Patents

Description

LR. N; GARVALHO.

, JAR CLOSURE.

' WITNESSES 7 APPLICATION IiLED JUNE 15, 1912.

Patented July 1, 1913.

ATTORNEY LESLIE R. N. CAEVALHQ, OF NEW YORK, N. Y., ASSIGNOB TOPAR-AGON METAL CAP 630., OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

JAR-CLOSURE.

'0 all Quiz-072i it may concern Be it known that l, lansmn VALHO, residing at New York, in the county and State of New York, have invented certain new and useful improvements in Jar- Closures, of which the tollowingis a specification.

This invention relates to jar or bottle closures, and the particular objectthereoi is to provide, in combination with a usual screw thread formation on the jar, or bottle, a cap or closure, having a pendent annular flange formed with threads on the lower portion, and formed with means adapted to cooperate with parts of the jar or bottle structure, for protecting the hands of the operator against injury incident to contact with the sharp lower edge of the cap, said means also serving to retain the closure packing and sanitary moisture proof lining against displacement, and serving also as a hand grip, and, by its formation, serving also to facilitate the easy removal of the closure, by reducing the element of friction to a minimum.

lt is well known that, in the formation of threads upon caps of thin metal, certain portions, at the lower edge of the flange, are turned at angles which present sharp corners, and that these sharp corners are the source of much annoyance and inconvenience to the operator. They, therefore, constitute a decidedly detrimental feature to caps or closures of the screw type. The sharp corners frequently mutilate the fingers of the operator. Since, however, the screw type of cap is one of the most desirable forms or, closure for all general purposes, by reason of its easy operation and its'adaptability to be used over and over, it is the purpose of this invention to overcome the objection to this sharp corner-by providing, in combination with the screw cap, a portion which projects sutliciently beyond the sharp corner to effectually protect the fingers from objectionable contact with said corner. The construction illustrated also removes all parts of the cap away from contact with the material of the jar or bottle except where such contact is designedly placed, namely, inthe threads. No friction is possible be tween the upper unthreaded. portion of the jaror bottle and the inner surface of the cap; The structure also provides an ideally formed-retaining. pocket for the packing Specification of Letters Patent.

Application filed June 15, 1912.

Patented July it 1M3. Serial no. 703,7'38.

and sanitary water proof lining of the cap, and forms an excellent hand grip.

()ther objects and aims of the invention, more or less broad than those stated above, together with the advantages inherent, will be in part obvious and in partspecifically referred to in the course of the following description; and the scope of protection contemplated will appear in the claims.

In the accompanying drawing, wherein is illustrated a merely preferred form of the invention: Figure 1 is a vertical, transverse, sectional view through a portion of a jar, bottle, or similar receptacle, having the closure hereof applied thereto, said view being shown partly in elevation; and Fig. 2 is a partial top plan View of the dap shown in Fig. 1, the receptacle being removed, a portion of saidligure being shown in horizontal section on the plane of line ll-ll of Fig. 1. Referring to the drawings by numerals, 1 indicates the jar, or other receptacle, which is usually of glass or similar material, and 2 indicates generally the closure havin the papking 3 the sanitary water proor lining a fitted thereinto. At a point spaced from its upper angular edge, the far is formed with a flange or head 5 projecting outwardly from the outer surface ithereof for a distance slightly more than the outermost points of the threaded portion 6 of the closure so as to cooperate with other parts, to he specifically described, for protecting the lower sharp edge or said threaded portion.

Between the head 5 the upper angular edge of the jar, the outer annular surface thereof is formed with threads 7, said threads terminating at a point spaced from the upper edge of the jar, leaving a portion of the jar without threads, and relatively smooth. For convenience in manufacture and ease of operation, it is desirable that there be provided a plurality of distinct threads. The jar illustrated is provided witl four such threads though more or less may obviously be used.

The closure 2 comprises the usual fiat disk portion 8, having a pendent annular flange 9. The disk portion 8 may be of a slightly greater diameter than the upper annular portion or the jar to which the ca is designed to fit, so as to better ac'commo ate the packing and lining. The lower portion only of the flange is formed with the threads each of the corrugations the material of the flange is bulged slightly, in consequence of the formation of the corrugations or otherwise, so as to remove all parts of the upper portion of the flange entirely out of frictional contact with the surface of the jar,

' and the pocket, or annular transversely corrugated recess 11, thus formed is admirably adapted to receive and retain. the sanitary lining 4. This lining is preferably of a slightly greater diameter than the inner dimension of the cap, and its outer annular edge bends downwardly and fits within the recess or pocket. 11, and is, naturally itself corrugated to a greater or lesser extent, by its engagement with the intermediate portions between the corrugations of the-annular recess,- and is thus firmly retained within the cap, regardless of whether the cap be applied to a jar or not. This downwardly bent annular portion obviously dependsoutside the material of the jar, and it thus serves to improve the sanitary qualities of the closure for the reason that any slight quantity of material from within'the jar, which happens to squeeze beyond the point of contact between the jar and water.

proof lining, will be held away from contact with the metallic portion of the closure. The formation of the annular recess 11 so removes the inner surface of the flange from the outer surface of the jar as to provide ample free space for the annular edge portion of the lining which projects beyond the jar, so that there may be no crowding or folding of said edge portion as it is turned or bent downwardly about the jar. As the projecting annular edge portion bends and is corrugated by engagement with the ridges of the corrugations of the recess, its surplus material, sought to be displaced by such bending laterally of the plane of the central portion of the lining disk, goes into its corrugations, which action prevents any folding or lapping of the material, such as would naturally follow were the continuous annular edge bent without being corrugated, and the presence of which lapping or folded material would operate to present a multiple thickness of material at several distinct points around the mouth of the jar, andrender efficient closure thereof practially impossible. The thicker, or folded portions,

would bind, either between the cap and the upper edge of the jar, or between'the inner surface of the" flange and the outer surface of the jar, most probably the latter, or both,

and prevent the normal portions from coming into sealing contactwith the jar.

The acking 3 is placed within the cap between e lining and the inner surface of the disk 8, and is of a size to fit snugly without having its annular edge crimped or bent to any appreciable extent. It is firmly held in place by the water proof lining, and being without wrinkles or folds, has its packing qualities unimpaired.

The lower edge of the flange, where the threads 6 -terminate, is disposed, particularly where such edge passes over the outermost portion of the threads, as at 12, in Fig. 1 of the drawings, at a decided angle,

as will be apparent, and the outer corner of this angle is often-times sharp and ragged and, as caps of this class have been heretofore manufactured, will readily mutilate the fingers of the operator. It will be noted, particularly from Fig. 1, that this, cutting edge or corner in the structure illustrated, stands at a point considerably within the plane of a line drawn from the outermost surface of the bead 5 to the outermost surface of the corrugations 10. A hand grasping the cap will thus be held, principally by the corrugations, but also by the bead, away from detrimental contact with the out ting edge. The corrugations incidentally provide a most effectual grip by which the cap may be rotated.

As numerous changes could be made in the details and proportions of the above construction, within the scope thereof, it is to be understood that the details disclosed herein and in the accompanying drawings shall be interpreted merely as illustrative and not in a limiting sense. It is also to be understood that the language used in they following claims is intended to cover all of the generic and specific features of the invention herein described and all statements ofthe scope of the invention which as a matter of language might be said to fall therebetween.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. The combination with a receptacle closure, havin a corrugated inner surface portion, of a lining for said closure having its marginal portion bent diagonally to dispose its edge in contact with the corrugated surface portion of the closure, and said bent portion of the lining being itself corrugated by contact with the corrugations of the closure, the relatively raised parts of the corrugated edge portion of the lining fitting into the relatively depressed portions of the corrugations of the closure so as to provide cooperative parts adapted to positively hold said lining against displacement from within the closure.

2. A receptacle closure comprising a disk having an annular flange arranged to de pend about a receptacle, said flange having a corrugated annular recess formed therein,

a lining in said closure comprising a disk of relatively greater diameter than the flange of said closure having its annular edge port-ion bent laterally and extended into said corrugated recess for forming a lining for said recess, said laterally bent portion being itself corrugated by forced engagement with the corrugations of said recess, the relatively raised parts of the corrugated ,edge portion of the lining fitting into the relatively depressed portions of the corrugations of the recess so as to avoid folds which would otherwise be incident to the lateral bending of the annular edge portion.

3. A receptacle closure comprisin a disk having an annular flange arrange to depend about a receptacle, said flange having a corrugated annular recess formed therein,

a lining in said closure comprisin a disk of relatively greater diameter t an the flange of said closure having its annular edge portion bent laterally and extended into said corrugated recess for forming a lining for said recess, said laterally bent portion being itself corrugated by forced engagement with the corrugations of said recess, the relatively raised parts of the.cor-. rugated edge portlon of the lining fitting into the relatively depressed portions of the corrugations of the recess so as to ,avoid folds which would otherwise be incident to the lateral bending of the annular edge portion, the engagement of the relatively raised parts of the edge portion of the lining with the relatively. depressed portions of the corrugations of the recess, and the engagement of the relatively raised parts of the corrugations of the recess with the relatively depressed parts of the corrugated edge of the lining, serving to provide cooperative; formations adapted to positively hold the lining against displacement when tlie closure is detached from the receptacle. In testimony whereof, I afiix my signature in the presence of two witnesses.

LESLIE R. OARVALHOI'.

Witnesses MORRIS BLAU', LEO EIBENBERG.

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