Gas separation – With separate flow line access means or filter media passage... – Access means is clamping or coupling means for unit filter...
Patent
1997-03-21
1999-01-26
Woo, Jay H.
Gas separation
With separate flow line access means or filter media passage...
Access means is clamping or coupling means for unit filter...
55481, 55490, 55491, 55492, 55493, 55495, 55508, 55511, 55DIG31, 55DIG35, 55DIG37, B01D 2500
Patent
active
058633103
ABSTRACT:
A grill filter assembly for mounting in the exit or entrance wall opening of a forced air duct wherein the grill plate may be installed in a hinged relation to the duct enabling easy access to the duct opening. In a preferred embodiment, the grill face plate is adapted to have a particulate filter and/or, if desired, a scent dispenser disposed thereon and the hinged relation of the face plate enables easy access to the filter for the changing thereof. Since the grill filter assembly is adapted to be mounted directly into the exit or entrance opening of the duct, the faceplate contains no unsightly screws or other fixtures as are common on heating and air conditioning registers and face plates. In a preferred embodiment, the assembly includes match means for cooperating with the wall to expeditiously mount the assembly in the duct.
REFERENCES:
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patent: 1898424 (1933-02-01), Collins
patent: 1914397 (1933-06-01), Bender
patent: 3460322 (1969-08-01), Rivers et al.
patent: 5176570 (1993-01-01), Liedl
patent: 5597392 (1997-01-01), Hawkins et al.
Brown Barbara L.
Hall Ernest L.
Pham Minh-Chau T.
Woo Jay H.
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