Vacuum cleaning apparatus

Details Vacuum cleaning apparatus Vacuum cleaning apparatus

1976-08-16

1978-10-24

Nozick, Bernard

Gas separation

With nonliquid cleaning means for separating media

Solid agent cleaning member movingly contacts apparatus

15340, 55244, 55257PV, 55271, 55356, 55432, B01D 4700

Patent

active

041219155

ABSTRACT:
An industrial vacuum cleaning apparatus adapted for cleaning gravel and dirt from building roof tops while the unit is disposed on the ground including a vacuum container, a dumping container, a valve disposed between the latter two containers which opens intermittently in a timed sequence, a water filter unit for filtering contaminated air before exhausting it to the atmosphere and a programmed air control system for sequentially actuating various portions of the apparatus.

REFERENCES:
patent: 1841556 (1932-01-01), Stelz
patent: 2487226 (1949-11-01), Eastman
patent: 2760595 (1956-08-01), Pynor
patent: 2859461 (1958-11-01), Machovec
patent: 2884963 (1959-05-01), Erndt
patent: 3103300 (1963-09-01), Lau
patent: 3874860 (1975-04-01), Larsson

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