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April 17, 1951 H. W. WILLIAMS 2,549,404 BOTTLE STOPPER Filed May 7, 1946 J& Z. 24 B 1. 2 2 L2 12 2YaaaZZYaz27.277 NWENOR AAPOZA M/ M/7// van/s BY 7 -ész.AORNEY %2. Patented Apr. 17, 1951 2,549,404 UNITED STATES PATENT of FICE 2,549,404 BOTTLE STOPPER Harold W. Williams, Pawling, N.Y. Application May 7, 1946, Serial No. 66,860 5 Claims. (C. 25-48) 2 The invention herein disclosed relates to a sufficient elasticity to conform to the neck of a bottle Stopper of the kind that includes a plug bottle in which it is inserted, and make a fluid portion that is adapted to be inserted in the neck tight fit therewith. Desirably, as illustrated, the of a bottle. Side wall of the plug makes a right angle with Bottle stoppers of the kind mentioned that are 5 the end wall. This provides the necessary rigid Commonly used include, in general, a cork plug. ity and prevents the plug from collapsing when and a WOOden end piece or cap glued or cemented inserted in the neck of a bottle. to the plug. Such bottle stoppers have many in There are several materials, moldable thermo herent and well known disadvantages, and var plastic materials, that are pliable at ordinary ious attempts have heretofore been made to pro O temperature and therefore suitable for the bottle duce a, bottle stopper of this kind to replace the stopger of this invention. One such material that cork Stopper. Except for the glass stopper, has been found especially suitable for the pur which has limited application because of its cost, pose is “Polythene.' This is a thermo-plastic none of these prior attempts have met with any material that is available on the open market and measure of success. known by the chemical name polyethylene. An object of the present invention is to provide On the plug portion of the stopper illustrated a bottle stopper of the kind mentioned that may in the drawing, there are two axially spaced, cir be molded from available material and that pro Cunnambient beads 5 and 6. These beads are in Wides a fluid tight closure for a bottle or like effect slight protuberances and serve two pur Container. Another object of the invention is to 20 pOSes. They assist in effecting a fluid tight en provide Such a bottle stopper that has a pliable gagement with the neck of a bottle into which plug portion for insertion into the neck of a bot the plug is inserted. In addition, these beads tle. A further object of the invention is to pro prevent the plug from working out of the neck vide Such a bottle stopper that may be made in of the bottle. With the beads a comparatively Various colors and color combinations. Another 25 loose fit between the plug and the neck of the object of the invention is to provide such a bottle bottle provides a satisfactory fluid tight stoppage, stopper that is comparatively inexpensive to and the plug will not accidentally come loose manufacture. from the bottle. The foregoing objects and certain advantages While it is essential that the plug portion be that Will hereinafter appear, are realized in the 30 pliable, the plug and cap may be molded in one embodiments of the invention illustrated in the integral piece. This is the construction illus accompanying drawing and described in detail trated. The cap 2 is also hollow but is closed by below, from which description a clearer under. a closure or insert F. The insert includes an end Standing of the invention may be had. Wall 8 and a skirt 9 Which When assembled in The drawing includes: 35 the cap extends into the cap with the edge there Fig. 1 which is a side elevation of a bottle of engaging the inner Surface of the shoulder 3 stopper embodying the invention; when the end wall 8 is flush with the edge of the Fig. 2 which is a top plan view of the same; cap. The insert and cap are provided with inter Fig. 3 which is a sectional elevation of the engaging means for retaining the insert in the Same taken on the line 3-3 of Fig. 1; and 4. cap. In the embodiment of the invention illus Fig. 4 which is a fragmentary sectional ele trated in the drawing the interengaging nears Vation of a modified form of the bottle stopper. consists of a circular receSS 0 in the inner SUr The particular bottle stopper illustrated in Figs. face of the side wall of the cap and a comple 1 to 4 of the drawings, includes a plug portion , mentary bead on the skirt of the insert. The that is adapted to be inserted in the neck of a 45 insert is pressed into the cap until the bead and bottle, and a cap portion 2 of greater transverse recess interengage. As the material is pliable, dimension than the plug portion and forming a the assembly is readily effected. The insert also shoulder 3 that abuts against the edge of the provides rigidity to the cap. neck of a bottle into which the plug is inserted. The stopper and the insert may be made of ma In the stopper shown, the plug f is hollow, closed 50 terial of the same or different colors. In this way by an end Wall 4, and has a slight taper that, is, many combinations of colors may be produced not discernable to the unaided eye. The plug is to provide pleasant, effects. molded from pliable material, desirably a ther In Fig. 4, there is shown a stopper of this kind, mo-plastic that is pliable at temperatures ordi embodying the invention, which carries a dis narily encountered. In this way, the plug has 56 pensing rod or brush 2. For this purpose, the 2,549,404 3 4. end Wall 3 of the plug portion 4 of the Stopper the plug portion is compressible and engages the is molded with a cylindrical, cup-shaped, inward inner surface of the neck of a bottle in fluid extension 5. The end of the rod 2 is inserted tight contact therewith, a hollow cap portion of in this extension and may be cemented therein. larger transverse dimension than the plug por The stoppers illustrated are very satisfactory tion integrally formed with the plug portion and for replacing the common cork stopper. They forming a shoulder adapted to engage the edge are much more attractive and equally effective. of the neck of a bottle into which the plug por While one common form of bottle Stopper has tion is pressed, the cap portion having a groove been illustrated, there is versatility in that vari in the inner surface of the wall thereof, an in ous shapes and forms may be molded due to the sert in the cap portion forming the end wall of pliability of the material. and reinforcing the cap portion, the insert hav It will be obvious that various changes inay ing a skirt thereon extending into the cap por be made by those skilled in the art in the details tion, and a bead on the skirt of the insert extend of the embodiments of the invention illustrated in ing into the groove in the inner Surface of the the drawing and described in detail above with 5 cap portion for retaining the insert in the cap in the principle and scope of the invention, as portion flush with the edgethereof. expressed in the appended claims. 4. As an article of manufacture, a bottle I claim: stopper of the kind to be pressed into the neck 1. As an article of manufacture, a bottle of a bottle having a smooth inner Surface, which 20 bottle stopper consists in combination of two stopper of the kind to be pressed into the neck molded parts, a hollow plug portion having an of a, bottle having a smooth inner surface, which integral end wall and adapted to engage the in bottle stopper consists in combination of tWO ner surface of the neck of a bottle, the plug con parts, a hollow plug portion having an integral sisting of molded polyethylene, whereby the plug end wall and adapted to engage the inner Surface portion upon being pressed into the neck of a of the neck of a bottle, the plug consisting of a bottle conforms to irregularities in and engages molded, pliable non-stretchable, thermo-plastic the inner surface of the neck of a bottle in fluid material, whereby the plug portion upon being tight contact therewith, a hollow cap portion of pressed into the neck of a bottle conforms to larger transverse dimension than the plug por irregularities in and engages the inner surface of 30 tion, integrally formed with the plug portion and the neck of a bottle in fluid-tight contact there forming a shoulder adapted to engage the neck with, a hollow cap portion of larger transverse of the bottle into which the plug portion is dimension than the plug portion integrally pressed, and an insert in the cap portion, the in formed with the plug portion and forming a sert having a radial outwardly extending shoul shoulder adapted to engage the edge of the neck 35 der spaced inwardly from the Outer surface there of a bottle into which the plug portion is pressed, of, and the cap portion having a radial in Wardly an insert in the cap portion forming the end extending shoulder engaging the outwardly ex wall of the cap portion, the insert having a skirt tending shoulder of the insert and Spaced in thereon extending into the cap portion, and inter Wardly of the edge of the cap portion an amount engaging complementary circumannbient bead 40 Substantially equal to the in Ward Spacing of the and groove, on the cap portion and the insert for outwardly extending shoulder of the insert, retaining the insert therein.