Vacuum cleaner dirt box

Details Vacuum cleaner dirt box Vacuum cleaner dirt box

1984-05-25

1985-04-30

Prunner, Kathleen J.

Gas separation

Plural serial basically diverse separating media

Plural stages in unitary casing

15349, 15352, 15353, 55366, 55375, 55429, 55433, 55447, 55464, 55472, 55473, 55DIG3, 285 7, B01D 5000

Patent

active

045141991

ABSTRACT:
A dirt box for an upright vacuum cleaner comprises an elliptical upper side wall portion below a top wall, a bowl-shaped bottom wall, an inlet neck opening into the chamber in the lengthwise direction and below one end of the upper side wall portion, and aimed to establish a swirling action. An outlet port for the dirt box is off-center toward the end from which the inlet extends. The bowl-bottomed dirt box is tilted and emptied through the inlet neck.

REFERENCES:
patent: 1983175 (1934-12-01), Kirby
patent: 2133141 (1938-10-01), Holm-Hansen
patent: 2537523 (1951-01-01), Frost
patent: 2583054 (1952-01-01), Kirby
patent: 2823411 (1958-02-01), Kirby
patent: 3468563 (1969-09-01), Duret
patent: 3608333 (1971-09-01), Selley et al.
patent: 4262384 (1981-04-01), Bowers

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