Wearable vacuum protective device

Details Wearable vacuum protective device Wearable vacuum protective device

1982-01-04

1983-09-06

Lacey, David L.

Gas separation

With means facilitating transportability or handling of...

55471, 55493, 51270, 51273, B01D 4610, B24B 5500

Patent

active

044027168

ABSTRACT:
A wearable vacuum protective device comprising a hollow bowl shape housing having a vacuum fan and a removable filter. An adjustable strap is connected to the housing, the strap being arranged to fit around the neck of the user to hold the housing against the user's chest.

REFERENCES:
patent: 2575483 (1951-11-01), Bethig
patent: 3496703 (1970-02-01), MacLeod et al.
patent: 4054132 (1977-10-01), Deeds
patent: 4292061 (1981-09-01), Land

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