Plaston Ag, Kunststoffwerke Hans Frei & Sohne

Platson Ag Kunststoffwerke Hans Frei & Sohne

Peter Sieber

Franz Gutmann

Roland Frei

Gutmann Franz

Peter Koeppel

The warming jug consists of a jacket (1) of several parts and a metal bottom (2). Parts of the jacket (1) are: an upper section (3) with a handle (15), an intermediate ring (5) and a closing ring (7). The metal bottom (2) is arranged in a circular groove (10) between the closing ring (7) and the intermediate ring (5). To ensure tightness, an additional seal (13) is arranged between the border of the bottom (6) and the intermediate ring (5) or the closing ring (7). The jacket parts (3, 5 and 7) are made of synthetic and are bonded together to one unit.

Warming jug

A filter for liquids and particularly coffee comprises a container having a planar horizontal base formed with at least one filtrate drainage opening, and on its inner face formed with a plurality of radial ribs and a central support member which together support a generally planar filter element of thin sheet material in spaced parallel relationship to the base. In use the arrangement produces a toroidal circulation of liquid which prevents compaction of the filter cake and reduces clogging of the filter element.

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Widnau, Switzerland

Peter Sieber