Abstract: A filter unit (1, 1a) is provided for, and/or as part of, a household appliance, in particular a washing machine. The filter unit includes a filter receiving body (2), a filter opening (30) in the filter receiving body (2), and a cap (3) for closing the filter opening. A drain passage (4) passes through the cap (3), and a closing means (5) is provided for closing the drain passage (4). A swivel-mounted lever element (6) is provided in operative connection with the closing means (5) for opening and closing the closing means.

Abstract: Counterweight, connectable to a washing machine tub (2), comprising an hollow shell (3) of U-shaped cross-section for containing a concrete ballast mass (4) poured therein, said shell (3) is integrally provided in one piece with two foldable members (5) adapted to close enlarged lower portions (6) of said shell (4) in order to encapsulate said concrete ballast mass (4).

Abstract: Anchorage device for fastening a counterweight to a washing machine tub comprising: an hollow shell (1) in which a concrete ballast mass (2) is adapted to be poured, said shell (1) being provided with fastening housings (3), and threaded fastening means (4) adapted to cooperate with the fastening housings (3) in order to secure the shell (1) to a washing machine tub (5). The fastening housings (3) comprise expansion cavities (6) shaped so as to define an equivalent diameter (7), the threaded fastening means (4) comprise a head (8) integrally provided with a flange adapted to engage the tub (5) and a shank adapted to be screwed into the expansion cavities (6), said shank comprising a self-tapping thread portion (9) having a crest diameter (10) and a root diameter (11) and a not-threaded pin portion (12) having a pin portion diameter (13).

Abstract: Counterweight, connectable to a washing machine tub (2), comprising an hollow shell (3) of U-shaped cross-section for containing a concrete ballast mass (4) poured therein, said shell (3) is integrally provided in one piece with two foldable members (5) adapted to close enlarged lower portions (6) of said shell (4) in order to encapsulate said concrete ballast mass (4).

Abstract: Anchorage device for fastening a counterweight to a washing machine tub comprising: an hollow shell (1) in which a concrete ballast mass (2) is adapted to be poured, said shell (1) being provided with fastening housings (3), and threaded fastening means (4) adapted to cooperate with the fastening housings (3) in order to secure the shell (1) to a washing machine tub (5). The fastening housings (3) comprise expansion cavities (6) shaped so as to define an equivalent diameter (7), the threaded fastening means (4) comprise a head (8) integrally provided with a flange adapted to engage the tub (5) and a shank adapted to be screwed into the expansion cavities (6), said shank comprising a self-tapping thread portion (9) having a crest diameter (10) and a root diameter (11) and a not-threaded pin portion (12) having a pin portion diameter (13).