A - Human Necessities – 47 – J
Patent
A - Human Necessities
47
J
A47J 31/04 (2006.01) A47J 31/44 (2006.01)
Patent
CA 2394102
Regarding a gasket for a funnel for a coffee-making apparatus of the type designed to have water brought to a boil in a closed container, whereupon the water is pressed through an ascension pipe into a funnel, where boiling water extracts aromas and flavour from the ground coffee, whereupon the finished coffee beverage is filtered back into the closed container through a filter placed at the outlet from the funnel, the object is to provide a gasket (1) for the funnel (2) of a coffee-making apparatus of the type mentioned in the introduction, where the gasket is appropriately deformed at differences of pressure greater than a few hundred millimetres of water column with a view to limiting or equalising the difference in pressure. Moreover, the gasket must be easily disassembled with a view to cleaning or replacement, and it must be able to withstand the temperatures and chemical conditions arising during the preparation of coffee. According to this invention, this objective is met by a gasket (1) which is made from a soft plastic and has a central sleeve (8), the diameter of which is tightly fitted to the ascension pipe (5), as well as an outer, bell-shaped flange (9) with a shoulder (7), a skirt (10), a bead (11), and a flat, membrane-like part (12) linking the shoulder (7) of the bell-shaped flange (9) with the central sleeve (8), and where the bead (11) has been manufactured with internal fastening devices (3b), which have been designed to hook into corresponding fastening devices (3a) on the funnel (2), fastening the gasket (1) on the funnel (2), where the shoulder (7) of the bell-shaped flange (9) has a diameter greater than that of the skirt (10) of the bell-shaped flange (9), but smaller than the diameter of the bead (11).
L'invention concerne un joint conçu pour un entonnoir de cafetière dans laquelle l'eau est amenée à ébullition dans un réservoir fermé et poussée à travers un conduit ascendant vers l'intérieur d'un entonnoir, l'eau en ébullition extrayant les arômes du café moulu; le café fini est renvoyé dans le réservoir fermé à travers un filtre placé à la sortie de l'entonnoir. Le joint (1) de l'entonnoir (2) de cette cafetière est déformé de façon appropriée à des différences de pression supérieures à quelques centaines de millimètres de colonne d'eau dans le but de limiter ou d'égaliser la différence de pression. Il est, de plus, possible de démonter ce joint sans difficulté afin de le nettoyer ou de le remplacer et il doit être capable de résister aux températures et aux conditions chimiques présentes pendant la préparation du café. Ce joint (1) est fabriqué en plastique mou et possède un manchon central (8) dont le diamètre s'adapte étroitement au conduit ascendant (5), ainsi qu'une bride extérieure (9) en forme de cloche, pourvue d'un épaulement (7), une jupe (10), un bord (11) et une pièce plate (12) de type membrane reliant l'épaulement (7) de la bride (9) au manchon central (8); ce bord (11) a reçu, lors de sa fabrication, des éléments de fixation intérieurs (3b), conçus pour s'accrocher dans des éléments de fixation correspondants (3a) situés sur l'entonnoir (2), ce qui fixe le joint (1) sur l'entonnoir (2), l'épaulement (7) de la bride (9) en forme de cloche possédant un diamètre supérieur à celui de la jupe (10) de cette bride (9) mais inférieur au diamètre du bord (11).
Bull Housser & Tupper Llp
Pi-Design Ag
LandOfFree
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