Anthony F Romayo

US Patent:

50530658, Oct 1, 1991

Filed:

May 16, 1988

Appl. No.:

7/194395

Inventors:

Charles J. Garay - Rahway NJ
Anthony J. Romayo - Middletown NJ
David McClelland - Colonia NJ

International Classification:

B01D 4600

US Classification:

55470

Abstract:

Low profile blower and filter apparatus for supplying clean air to selected environments is configured wherein a relatively low powered blower unit employing a backward curved impeller is utilized for a selected unit of volume. The number of blower units employing the backward curved impeller within the given module is determined as a function of the number of selected units of volume in the blower and filter module configured. Each blower unit employing a backward curved impeller produces a radial air flow which pressurizes a plenum formed within the module configuration in a substantially uniform manner enabling a substantially laminar flow through a filter disposed perpendicularly to the direction of the air flow from the backward curved impeller without use of baffles. Since the blower units selected are relatively small and no baffle structure need be employed, the height dimension of the resulting unit is markedly reduced to obtain a low profile module.