Rim seal for vacuum cleaner having dual storage tanks

Details Rim seal for vacuum cleaner having dual storage tanks Rim seal for vacuum cleaner having dual storage tanks

1993-09-27

1995-02-14

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

153276, 15328, 15352, 15353, A47L 536, A47L 700

Patent

active

053883012

ABSTRACT:
The present invention discloses and teaches means for effecting a vacuum seal between the cover lid, outer tank and inner tank of a dual tank utility type vacuum cleaner wherein the inner tank is telescopingly positioned within the outer tank and suspended therein from the peripheral rim of the outer tank. The peripheral rims of the cover lid, inner tank and outer tank cooperate to fluidly isolate the inner tank from the outer tank and seal both tanks from the atmosphere.

REFERENCES:
patent: 2528375 (1950-10-01), Lilly
patent: 3570222 (1971-03-01), Dudek et al.
patent: 3775951 (1974-12-01), Eicholz et al.
patent: 3821830 (1974-07-01), Sundheim
patent: 3939527 (1976-02-01), Jones
patent: 4087881 (1978-05-01), Bates
patent: 4200951 (1980-05-01), Burgoon et al.
patent: 4367565 (1983-01-01), Parise
patent: 4586208 (1986-05-01), Trevarthen
patent: 4654926 (1987-04-01), McCambridge
patent: 4894881 (1990-01-01), Palmer et al.
patent: 5086537 (1992-02-01), McDowell et al.
patent: 5205014 (1993-04-01), Yoo

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