Clean room with replaceable filter and a seal cutting mechanism

Details Clean room with replaceable filter and a seal cutting mechanism Clean room with replaceable filter and a seal cutting mechanism

1983-12-19

1985-05-21

Lacey, David L.

Gas separation

Combined or convertible

Involving ash tray

55483, 55484, 55502, 55DIG31, B01D 4610

Patent

active

045184054

ABSTRACT:
An air filtering system of the type used in clean rooms and the like supportable from a ceiling. The unit includes a supporting frame with an opening therethrough, the supporting frame being suspended from the ceiling by cables or the like. A filter having a filter frame therearound is placed within and across the opening in the support frame. A cutting wire is positioned between the supporting frame and the filter frame around the periphery of the opening. One end of the wire is free and extends below the two frames. The other end is fixedly secured to either the filter or support frame. A cuttable seal is applied between the filter and support frames around the periphery of the opening. Clips are also provided to hold the filter within the opening. When one wishes to remove the filter, the free end of the cutting wire is pulled, cutting the seal around the periphery of the opening, thereby allowing the filter and filter frame to be removed from the support frame opening.

REFERENCES:
patent: 3323437 (1967-06-01), Knab
patent: 3522724 (1970-08-01), Knab
patent: 3812370 (1974-05-01), Lavioiette
patent: 3986850 (1976-10-01), Wilcox
patent: 4175936 (1979-11-01), Lough et al.
patent: 4225328 (1980-09-01), Stiehl
patent: 4344265 (1982-08-01), Davidson

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