| 摘要 |
1495037 Brewing apparatus HAGEZET-AG 30 Sept 1975 [2 Oct 1974] 39883/75 Heading A4E [Also in Division F2] A brewing container for a beverage brewing machine comprises a body 1 and a head 2, the head having a hot-water inlet pipe 16 and being slidably disposed so that it provides an openable cover for the body, a seal between the head and the body being provided by a piston 17 having differently sized surfaces 6,9 adapted to be impinged upon by the hot water, there being a sealing means 19 on the side of the piston providing the smaller 6 of the surfaces for co-operating with other portions of the container. As shown, the container includes a strainer 8 to support the brewing solids and the cover may be slid sideways away from the body 1 on plastics glide elements 12 so that the brewing solids may be placed in the container. Hot water is then applied to the container through the pipe 16 and it passes through perforations 20 in the piston and on to the brewing solids. Since the undersurface 6 of the piston is smaller than the upper surface 9, the piston is forced downwards and the sealing element 19 renders the container liquid tight. The brewed liquid is drawn off through the outlet pipe 7. In an alternative embodiment Fig. 2 (not shown), the piston (26) is annular with an undersurface (35) that is larger than the upper surface (36) so that the piston seals with an element (27) against the cover 25. The container may include a water spreading plate 24 which (Fig. 2) may be (31) apertured.
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