US1848773A - Frederick jonathan pisoit - Google Patents

Description

March 8, 1932. v J FISQN 1,848,713

7 CLOSURE FOR JARS, BOTTLES, AND SIMILAR RECEPTACLES Filed July 15, 1929 a other suitable material Patented Mar. 8, 1932 FREDERICK JONATHAN FISON, SONS LIMITED, OF

013 CAMBRIDGE, ENGLAND, ASSIGNOR TO CHIVEBS80 HISTON, ENGLAND, A BRITISH (JOIVllIl-HWYv CLOSURE FOR JARS, BOTTLES, AND SIMILAR BECEITACLES Application filed July 15, 1929, Serial No. 378,464, and in Great Britain m 1 6, 192 s,

This invention relates to closures for jars, bottles and similar receptacles the closures being of the so called ring type which comrise a disc or cap of metal, cardboard or adapted to cover the mouth of a jar, bottle or similar receptacle (hereinafter referred to briefly as receptacle) and which is held in position by means of a circumferential metal ring formed from a length of metal strip, having its ends joined and having upper and lower flanges or inward projections that overlap the upper surface of the disc or cap and the underside of a shoulder or rim formed aroundthe neck or mouth of the receptacle. Hitherto it has been necessary, in order to remove the closure from the receptacle so that access may be made to the. interior thereof, to break the joint of the metal ring, which is then' removed prior to the removal of the disc or cap from the mouth of the receptacle. This arrangement suffers from the disadvantage that the mouth of the receptacle cannot be resealed effectively by the'same closure after the joint of the metal ringhas been broken and the present invention has for one of its objects to obviate this disadvantage.

together According to the invention the ring of the closure is constituted by a length of metal strip having its ends joined together in such a manner that, although it always retains its annular formation, its efiective diameter can be increased so that it can be removed or replaced around the mouth of the receptacle when it is desired to open or close the mouth of the latter, the replacement being preferably effected by springing the ring over the mouth of the receptacle when the ring is in its expanded condition.

In a preferred form the metal strip forming the said ring is provided with complementary connecting elements. of thefhook and eye type, the tongue or hookele-ment being provided at its outer end with an enlarged head portion of-greaterwidth than the width circumference of the ring can be increased until the said-head portion abuts against the side edges of the aperture.

' or projection edge of the mouth of the aperture with which it en gages so that if the tongue is bent back the Alternatively the said complementary connecting elementsmay comprise a tongue of hook formation at one end of the strip which is adapted to enter an aperture formed at the other end of the strip, the said tongue being prevented normally from full engagement with the aperture by reason of its'contact at its outerend with a lug or projection provided adjacent to the aperture, the said lug being bent back upon itself so as to form. a stop or shoulder for the tongue as aforesaid. VVhen-it is desired initially'to remove the. closure from the receptacle, the.

lug ,or projection isbent back or removed by r destruct1on so as to permit the tongue'to enter into full engagement with the aperture thereby increasing'the effective diameterof the ring and permitting the closure tobe removed from the mouth of the receptacle.

,The invention further consists in the forination of the circumferential metal ring of the ring type closure with tongues or toothlike or other projections along the lower or upper and lower longitudinal edges thereof which are adapted to be bent inwardly and, when in position around the neck or mouth of a receptacle, to overlap the underside of the shoulder or'rim formed around the said neck and, when'the tongues or the like are formed alongboth edges of the strip, the upper surface of the disc as well. The latter isv a preferred formation of the ring and the projections formed along the upper and lower edges respectively are preferably in spaced relation so that the blank of the ring, prior to forming or rolling is of zig-zag formation. flexibility is obtained which is not present with a ring having continuous longitudinal flanges and which permits the ring to accommodate itself to irregularities, of the upper of the receptacle as, .in efiect it constitutes a multiplicity of independent clips positioned in spaced relation around the said mouth.

With such an arrangement a degree of I In order that the said invention may Joe 7 7 loo illustrating preferred embodiments of the invention and in which Figure 1 is a perspective View of one form of closure applied to the mouth of a re ceptacle,

Figure 2 shows a portion of the metal blank of a preferred form of ring and Figure 3 is a partial section showing one form of closure according to the invention applied to the mouth of a receptacle.

Referring to the drawings, A is the re-- ceptacle to the neck or mouth of which is applied a disc. or cap B of metal, cardboard or other suitable material. The discor cap B is held in position over the mouth by means of the metal ring C having inward tooth-like projections D and D formed along its upper and lower longitudinal edges which overlap the upper surface of the disc B and the underside of the shoulder or rim formed around the neck or mouth of the receptacle respectively. The ends of the ring C are provided with complementary connecting elem-ents of the hook and eye type consisting of an aperture E formed adjacent one end and a tongue or hook element F at the other end which is adapted to be bent back on itself to form a hook which engages in the aperture E. The tongue F is provided at its outer end with an enlarged head portion F of greater width than the width of the aperture so that if the tongue is bent back the circumference of the ring is increased until the said head portion F abuts against the side edges of the aperture E. By such movement the effective diameter of the ring is increased and allows the closure to be removed from the mouth of the receptacle and to be subsequently re-applied thereto.

The metal ring C, as aforesaid, is formed with upper and lower flanges or inward proj ections D, D that are adapt-ed to overlie the upper surface of the disc or cap B and the underside of a shoulder or rim formed around the neck 01' mouth of the receptacle A respectively when the closure is in position. The flanges may be formed in known manner, by turning over the two longitudinal edges of the metal strip forming the ring C. Alternatively the upper flange may be continuous and the lower flanges constituted by the tongues or projections D or, preferably, as shown in Figure 1, they are formed by bending over the projections D, D formed along each of the said longitudinal edges of the strip, the said projections on the respective edges of the strip, being preferably positioned in spaced relation giving a zigzag shape to the blank of the metal ring C (see Figure 2) whereby the said ring, when formed into ring shape and when the projections D, D are directed inwardly by bending along the two horizontal dotted lines in this figure, possesses a degree of flexibility which is not present with a ring having continuous upper and lower flanges, and permits the ring to accommodate itself to irregularities of the rim of the mouth of the receptacle as the ring may be contorted by bending about one or more of the inclined lines such as that indicated by m, 11 in Figure 2. The ring C thus constitutes, in effect, a multiplicity of independent clips positioned in spaced relation around the mouth of the receptacle. The projections D, D are preferably bent over to an extent which necessitates their being forced apart slightlywhen the ring is closed or clamped around the said mouth (see Figure 3) and thereby the periphery of the disc B is positively and constantly forced or pressed downwardly onto the receptacle.

The said disc B may consist of a flexible metal disc, that is to sa a metal disc not stiffened by a continuous downwardly diverted flange or skirt or any pression and a rubber or other resilient ring or gasket N may be located by, for example, forming isolated raised parts O in the disc B, between the upper rim of the receptacle A and the said disc B. By this arrangement the closure, when applied to the receptacle, constitutes an air tight or hermetic seal for the contents within the receptacle.

The projections D or the lower longitudinal edge of the strip may be bent. under after the application of the ring to the mouth of the receptacle in which case the connection between the ends of the strip would be of fected before such application. It is preferable, however, to bend over the said projections prior to the application of the ring to the receptacle, that is to say, to preform the ring to its desired shape which may be then applied to the receptacle.

The metal ring C, when in its enlarged condition, is preferably of such diameter that it can only be removed from the mouth of the receptacle by springing the inwardly directed flange o1" projections D formed around the lower edge of the ring over the shoulder or rim provided around the mouth of the receptacle so that the closure, after its initial removal from the receptacle, may constitute an effective seal when reapplied to the latter.

What I claim and desire to secure by Letters Patent of the United States is 1. A closure for receptacles comprising a cap for application to the mouth of a receptacle, and a retaining ring for maintaining the cap in position uponthe receptacle having inwardly extending projections on one edge for engaging the upper surface of the cap and projections on its opposite edge for engaging the undersurface of a rim formed around the mouth of the receptacle, the two sets of projections being staggered in relation to each other to increase the flexibility of the ring and enable it to conform annular imstrip being provided with tooth-like projec- I FREDERICK JONATHAN FISON. 75

mouth of the receptacle, one set of said proclosely to irregularities in the shape of the surface of the cap and the opposite edge of;

mouth of the receptacle. said retaining ring having pro ect ons for en- 2. A closure for receptacles comprising a gaging the undersurface of a rim formed cap for application to the mouth of a receparound the mouth of a receptacle, the two sets 5 tacle, a retaining ring for maintaining the of projections being staggered mrelation to cap in position upon the receptacle, the ring each other to increase the flexlblhty of the being constructed from a strip metal blank r ng and enable it to conform closely to 1rand means for connecting the ends of said regularities 1n the shape of the mouth of the strip to form a ring, opposite edges of said receptacle to which 11; 1s applled.

tions, said projections being staggered in relation to each other to increase the flexibility of the formed ring and enable it to conform closely to irregularities in the shape of the jections being adapted to be bent inwardly, 7 when the blank is bent into a circular shape,

to engage the upper surface of the cap, the I remaining set of projections being adapted V to be bent inwardly to engage the undersurface of a rim formed on the receptacleadjacent the mouth thereof.

3. A closure for receptacles comprising a a cap for application to the mouth of a receptacle and a retaining ring for maintaining the cap in position upon the receptacle, the retaining ring being constructed from a strip metal blank having complementary connecting elements formed on its ends, opposite edges of said strip metal blank being pro-' vided with tooth-like projections, the pro j ections at one edge being staggered in relation to those at the other edge and the pro- 7 j ections on opposite edges of the blank corre- I sponding 1n shape and size, whereby a number of blanks may be cut from a sheet of metal without waste.

4. A closure for receptacles comprising a cap for application to the mouth of a receptacle and a retaining ring for maintaining a the cap in position upon the receptacle, said ring being constructed from a strip metal blank having tooth-like projections on opposite edges, the tooth-like projections being no staggered in relation to each other and one edge of one projection on one side of the blank lying in line with one edge of a projection on the opposite side of the blank whereby the flexibility of the completed retaining ring is increased and it is enabled to conform closely to irregularities in the shape of the mouth of the receptacle to which it is applied.

5. A closure for receptacles comprising a cap for application to the mouth of a receptacle, and a retaining ring for maintaining the cap in position upon the receptacle, the retaining ring being constructed from a strip metal blank, one end of the ring being cut away to provide a slot and the other end of the ring strip being provided with a proj ecting tongue for engaging said slot for connecting the strip into ring form, one edge of said ring being provided with inwardly ex- 13o tending projections for engaging the. upper

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