Gas separation – With gas flow effecting means – With heating or cooling means
Patent
1993-11-05
1995-06-27
Miles, Tim R.
Gas separation
With gas flow effecting means
With heating or cooling means
55482, 55DIG34, 15339, B01D 4600
Patent
active
RE0349801
ABSTRACT:
A vacuum motor and fan are mounted within a housing, the lower end of which receives a high efficiency particle filter. The bottom of the housing includes a series of projections adapted to be received in corresponding apertures on an upper flange of the filter to prevent replacing the filter with an improper one. The projection/apertures also promote proper seating of the seal between the filter canister and the housing. A separate projection on the filter engages and actuates a lock-out switch carried by the housing to permit the machine to operate only when the filter is of proper size and capacity and it is properly seated on the housing.
REFERENCES:
patent: 4001912 (1977-01-01), Eriksson
patent: 4737173 (1988-04-01), Kudirka et al.
patent: 4786295 (1988-11-01), Newman et al.
patent: 4894881 (1990-01-01), Palmer et al.
patent: 4995891 (1991-02-01), Jaynes
patent: 5015274 (1991-05-01), Perry
Pullman Holt Asbestos and Hazardous Waste Vacuums, 12 pages (May 1987), Pullman Holt, Tampa Florida 33687.
Karadimas Margaret
McLeod Rick
Palmer Gary E.
Rau Jerome E.
Miles Tim R.
Minuteman International, Inc.
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