Household drain plunger

E - Fixed Constructions – 03 – D

Patent

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Details

E03D 11/00 (2006.01) E03C 1/308 (2006.01)

Patent

CA 2373298

This invention relates to an improved household drain plunger (10) for use with household drains of various shapes and sizes. The head section (21) of the plunger is a pleated bellows (18) consisting of a conical upper section (22) of increasing diameter from top to bottom, and a smaller lower section (23), also conical, of decreasing diameter from top to bottom. A handle (15) extends from the top of the head section (21). The bottom end of the plunger consists of three levels of seals (1, 2, and 7) depending from the bottom of the head section (21). The first and bottommost seal (1) is a dual-function seal designed to fit snugly into a typical kitchen sink drain opening, thereby providing a mechanical seal. This first seal (1) also has a flat bottom comprising an annular ring that can be placed around a small drain hole opening, such as that in a bathroom sink or tub, to provide a pressure/suction seal with the drain opening. The annular ring has a center void (19) which opens to the interior of the bellows (18). The second seal (2), disposed between the bellows (18) and the top of the first seal (1), is designed to fit snugly into a typical garbage disposal opening, thus providing a mechanical seal with the opening. The bottom most bellows pleat (3) comprises the third seal (7). This third seal (7) forms a pressure/suction seal with the surface surrounding a drain opening, and is also dual-function, as it is used either alone or in conjunction with the second seal (2), depending upon the size of the drain opening.

L'invention concerne un débouchoir (10) amélioré utilisé avec des tuyaux d'évacuation de ménage de différentes formes et dimensions. La partie tête (21) du piston est un soufflet plissé (18) en deux parties, l'une supérieure (22) conique d'un diamètre croissant de haut en bas, l'autre inférieure (23) plus petite, également conique, d'un diamètre décroissant de haut en bas. Un manche (15) s'étend du haut de la partie tête (21). L'extrémité inférieure du débouchoir est formée de trois niveaux de joints (1, 2 et 7) partant du fond de la partie tête (21). Le premier joint (1), le plus bas, à double fonction, est conçu pour s'insérer à fleur dans l'orifice de vidange d'un évier de cuisine type, formant ainsi un joint mécanique. Ce premier joint (1) présente également un fond plat comprenant une bague annulaire pouvant être placée autour d'un petit orifice de vidange, par exemple celui du lavabo de salle de bain ou de douche, pour former un joint à pression/d'aspiration avec l'orifice de vidange. La bague annulaire présente un vide central (19) s'ouvrant à l'intérieur du soufflet (18). Le deuxième joint (2), placé entre le soufflet (18) et le haut du premier joint (1), s'insère à fleur dans un orifice d'évacuation d'ordures type, formant ainsi un joint mécanique avec l'orifice. Le repli inférieur (3) du soufflet renferme le troisième joint (7) qui forme un joint à pression/d'aspiration avec la surface entourant une orifice de vidange. Il a également double fonction, puisqu'on peut l'utiliser soit seul soit conjointement avec le deuxième joint (2), en fonction de la dimension de l'orifice de vidange.

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