Liquid level control arrangement for a dishwasher

Details Liquid level control arrangement for a dishwasher Liquid level control arrangement for a dishwasher

1990-12-13

1992-07-14

Stinson, Frankie L.

Cleaning and liquid contact with solids

Apparatus

Automatic controls

134105, 134111, 134155, 134186, 1341044, B08B 302

Patent

active

051294117

ABSTRACT:
A liquid level control arrangement for a dishwasher. The dishwasher comprises a tub (10) on which dishes are to be placed and in which liquid is to be circulated by means of a circulation pump (27). The circulation pump (27) communicates via a tube-shaped connection (26) with an inlet (25) which is placed in the lower part of a chamber (23) situated at the bottom of the tub. The chamber is at least partly separated from the tub by means of a filter (20) or the like, and also comprises a heating source (31) for warming the liquid. The connection (26), in addition to said inlet (25), has an opening (32) which at least partly is placed above or at the same level as the heat-emitting parts of the heating source (31). The opening (32) has a shape and size such that the surface thereof exposed to the chamber increases when the liquid level in the chamber sinks.

REFERENCES:
patent: 1661356 (1928-03-01), Baker
patent: 2083012 (1937-06-01), Eastwood
patent: 2674249 (1954-04-01), Knight
patent: 3103227 (1963-09-01), Long
patent: 4277290 (1981-07-01), Andrews et al.
patent: 4833900 (1989-05-01), Babuin et al.

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