Hot water vacuum extraction machine with float sealed riser tube

Details Hot water vacuum extraction machine with float sealed riser tube Hot water vacuum extraction machine with float sealed riser tube

1993-12-08

1995-03-07

Moore, Christopher K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15321, 55216, A47L 700

Patent

active

053945875

ABSTRACT:
A steam cleaner recovery tank has an inverted cup shape dome sealed thereto. An upright riser tube mounted to the recovery tank bottom wall extends into the dome. A flat horizontal plate intersects the vertical upright riser tube and supports a float ball at a rest position below a riser tube inlet port shielded from a dirt-free return air stream. The float ball rises by contact with liquid accumulating within the recovery tank. The float ball is of a density so as to be rapidly sucked into the inlet port by the dirt-free return air stream. A perforated cup integrally molded to the flat plate supports the float ball in one embodiment and forms a shield. In a second embodiment, a cylindrical wire mesh screen is fixed to the bottom of the flat plate, to the side of the riser tube. The float ball is positioned in the filter screen and the second circular hole constitutes the risers tube inlet port. An air imperforate shrink tube acts as a shield.

REFERENCES:
patent: 2212429 (1940-08-01), Yutzler
patent: 2989769 (1961-06-01), Houser
patent: 3082465 (1963-03-01), Wood
patent: 3180071 (1965-04-01), Nolte
patent: 3343199 (1967-09-01), Nolte
patent: 4078908 (1978-03-01), Blackman
patent: 4142270 (1979-03-01), Nauta
patent: 4821367 (1989-04-01), McAllister et al.

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