Filter apparatus with automatic cleaning

Details Filter apparatus with automatic cleaning Filter apparatus with automatic cleaning

2005-01-19

2008-10-21

Pham, Minh-Chau T (Department: 1797)

Gas separation

With nonliquid cleaning means for separating media

With automatic control of cleaning means

C055S284000, C055S302000, C055S318000, C055S321000, C055S322000, C055S287000, C055S385100, C055S467000, C095S020000, C095S279000, C095S280000

Reexamination Certificate

active

07438735

ABSTRACT:
A filter apparatus includes a gas-impermeable outer conduit having an open end and a closed end. The interior of the outer conduit is axially divided into first and second sides. A first clean and first dirty flow path are defined within the first side. A first gas-permeable liner separates the first clean flow path from the first dirty flow path and from the open end. A second clean and second dirty flow path, are defined within the second side. A second gas-permeable liner separates the second clean flow path from the second dirty flow paths and from the open end. A control valve connects one of the first clean and second clean flow paths to an exhaust conduit, and connects the other clean flow path to a selectively pulsed supply of cleaning gas.

REFERENCES:
patent: 4445912 (1984-05-01), Volk et al.
patent: 4778491 (1988-10-01), Yow, Sr.
patent: 5152895 (1992-10-01), Doucet
patent: 6458178 (2002-10-01), Dietz et al.

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