Air filter system for clean room

Patent · Tue Jul 22 04:00:00 EDT 1986

OSTI ID:5396141

Gerbig, F T

For filtering air entering a room from a pressurized plenum above this patent describes: (a) filter media sealingly enclosed around its edges in a rectangular casing located under the pressurized plenum; (b) a rigid outer frame around the filter media casing having vertical side walls, a horizontal flat rim extending inwardly from the bottom edge of the side walls, and a vertical flange extending upwardly from the inner edge of the rim; (c) a gasket comprising a strip of resilient sealing material attached to and entirely covering the outside of the rim; (d) a rectangular support frame made of rigid channel bars, the gasket covered rim of the filter frame resting on top of the support frame with the filter media covering over the entire opening defined by the support frame; and (e) clamp means attached to the support frame for engaging the frame flange for adjustably and releasably holding the gasket covered rim in airtight engagement against the support frame.

• Assignee: NOV; NOV-85-018286; EDB-86-151958
• Patent Number(s): US 4601737
• OSTI ID: 5396141
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR
AIR FILTERS
AIR POLLUTION CONTROL
AIRTIGHTNESS
CLEAN ROOMS
CONTROL
DESIGN
EQUIPMENT
FASTENERS
FILTERS
FILTRATION
FLANGES
FLUIDS
GASES
GASKETS
MATERIALS
MECHANICAL STRUCTURES
OPERATION
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
PRESSURIZING
SEALING MATERIALS
SEALS
SEPARATION PROCESSES
SUPPORTS
WALLS