Патент USA US2116421код для вставки
- May 3, 1938. H. V. WILLIAMS 2,116,421 ' JAR CLOSURE Filed Dec. 1 , 1936 ' 2. \ 20 /a \ \\\\ \\\ \\\\ \\\\\\\ \\\ \\\\ \ \ \ \\\ \\ \\ \ \\ \ \ \\ \\ , /4 \ \ \ \ \ , I l/ I / I I / / / I ?ora 0e l/MZ/z'akma E" ATTORNEYS I Patented May 3, 1938 2,116,421 UNITED srres PAENT GFFIQE 2,116,421 JAR CLOSURE Horace V. Williams, Philadelphia, Pa. Application December 1, 1936, Serial No.,113,731 1 Claim. (Cl. 215-40) The object of the invention is to provide a jar is provided onv its periphery. The ribs are formed closure construction whereby jars of glass or with inclined under edges and are arranged similar material may be eliectively sealed air around the neck in a circular series with the nose tight; to provide a closure construction embody end of one materially‘ spaced from the heel end ‘ ing a rubber gasket or sealing ring so arranged of the next. Thus in applying the ring, the lugs that the sealing ring will be compressed through pass between adjacent ribs and on rotation of out in the sealing operation and not subjected the ring they slide down the inclined under-faces to a pull or tension, as in conventional practice, which tends to open the pores of the material; 10 and generally to provide‘ a jar. closure which is of simple form and susceptible of cheap manu facture. With this object in View, the invention con~ ‘sists in a construction and combination of parts 15 of which a preferred embodiment is illustrated in the accompanying drawing, wherein: Figure 1 is an elevational view of the inven tion, with certain parts broken away. ' Figure 2 is a detail sectional view showing the 20 mouth of the jar and cap attached with the parts in position prior to the application of a pressure on the sealing ring. Figure 3 is a view similar to Figure 2 but show ing the relative position of the parts when the 25 cap is in fully closed position. It is preferable to have the jar l0 and the cap clamping ring I l of the same diameter, and thus the mouth of the jar is formed by contracting the latter circumferentially, as indicated at l2, this 30 contraction providing a neck portion [3 of which the upper edge is beveled on the outside, as indi cated at 14, and similarly beveled on the inside, as indicated at l5, the angles of the bevels being uniform on opposite sides of a vertical line pass 35 ing through the peak 15 of the neck. The cap I‘! is formed with a pendent annular ?ange l8 of an exterior diameter to be readily received within the neck l3 and exterior to the ?ange has a ledge portion E9 of which the under 40 face is channeled, as indicated at 29, to provide synclined walls which, when the cap is in posi tion on the jar, parallel the beveled edges I4 and I5 of the neck. The cap ll is recessed on its upper face adja 45 cent its periphery to provide a seat for the in turned ?ange 2| of the clamping ring I I and the latter at the lower edge has inturned lugs 22 en gag'eable with the ribs 23 with which the neck of the rib and thus draw the cap down on the neck. The sealing ring it is placed on the cap in sur- 10 rounding relation to the ?ange l8 before the cap is applied and rests in the channel 20 but on the inclined wall of the latter next to the ?ange l8. Thus, when the cap is applied, the underface of the sealing ring rests on the beveled wall 15 and 15 when the clamping ring is rotated the material of the sealing ring is compressed, as shown in Figures 1 and 3. The sealing ring is at no time subjected to tension at any point. Rubber is naturally porous and its effectiveness as a seal- 0 ing medium depends on its being subjected wholly to compression. The present invention provides such a use, the inner beveled edge l5 of the neck, the ?ange I8 and the channel 20 of the cap serv— ing to so embrace the sealing ring that the ma- 25 terial thereof is compressed solely as the cap is drawn down on the neck when the clamping ring is rotated. The invention having been described, what is claimed as new and useful is: 30 A jar and closure therefor, the former having a neck of which the upper edge is beveled inte riorly and exteriorly and the latter channeled to provide walls paralleling said beveled edges when the closure is attached, and an elastic sealing 35 ring seated upon the inner beveled edge and of a width corresponding to the width of said edge, the closure having an annular pendent ?ange on the undersurface of an exterior diameter corre sponding to the interior diameter of the neck, and 40 means for attaching the closure to the jar and subjecting the sealing ring to compression in so doing, the ?ange engaging the sealing ring on the inner periphery with the adjacent inclined wall engaging it on the upper face, the other inclined 45 wall of the closure engaging the ring on the outer periphery as the latter is compressed. HORACE V. WILLIAMS.