Critically safe vacuum pickup for use in wet or dry cleanup of r

Details Critically safe vacuum pickup for use in wet or dry cleanup of r Critically safe vacuum pickup for use in wet or dry cleanup of r

1992-12-04

1994-04-12

Coe, Philip R.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

153273, 153276, 15347, 15328, 55216, 55429, A47L 912

Patent

active

053013883

ABSTRACT:
A vacuum pickup of critically safe quantity and geometric shape is used in cleanup of radioactive materials. Collected radioactive material is accumulated in four vertical, parallel, equally spaced canisters arranged in a cylinder configuration. Each canister contains a filter bag. An upper intake manifold includes four 90 degree spaced, downward facing nipples. Each nipple communicates with the top of a canister. The bottom of each canister communicates with an exhaust manifold comprising four radially extending tubes that meet at the bottom of a centrally located vertical cylinder. The top of the central cylinder terminates at a motor/fan power head. A removable HEPA filter is located intermediate the top of the central cylinder and the power head. Four horizontal bypass tubes connect the top of the central cylinder to the top of each of the canisters. Air enters the vacuum cleaner via a hose connected to the intake manifold. Air then travels down the canisters, where particulate material is accumulated in generally equal quantities in each filter bag. Four air paths of bag filtered air then pass radially inward to the bottom of the central cylinder. Air moves up the central cylinder, through the HEPA filter, through a vacuum fan compartment, and exits the vacuum cleaner. A float air flow valve is mounted at the top of the central cylinder. When liquid accumulates to a given level within the central cylinder, the four bypass tubes, and the four canisters, suction is terminated by operation of the float valve.

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patent: 4939809 (1990-07-01), Park
patent: 4963172 (1990-10-01), DeMarco
patent: 5180407 (1993-01-01), DeMarco

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