High efficiency air filter
An apparatus is described for filtering an airstream. It comprises a supporting housing having an opening adapted to form a part of an air flow system having an airstream passing therethrough to define an air flow direction through the opening, and a high efficiency air filter supported by the housing. A means is included for releasably sealing the periphery of the air filter to the periphery of the housing opening so as to permit the filter to be withdrawn from the housing and replaced with a fresh filter. The improvement described here is wherein the sealing means comprises a continuous peripheral channel surrounding the opening and sealably fixed to one of either the housing or the filter, the channel facing in a direction parallel to the air flow direction through the opening, a sealant filling at least a substantial portion of the channel, the sealant comprising an essentially non-volatile and non-hardening gum-like uncured polysiloxane gum having a viscosity of at least about 500,000 centipoise and having a consistency substantially the same as modeling clay, and a flange having a continuous cross sectional outline corresponding to that of the channel, the flange being sealably fixed to the other of either the housing or the filter and having a forward edge portion positioned within the channel and sealably embedded into the sealant.
- Assignee:
- Flanders Filters, Inc., Washington, DC
- Patent Number(s):
- US 4639261
- OSTI ID:
- 6862240
- Country of Publication:
- United States
- Language:
- English
Similar Records
High temperature solar receiver
Oil well pump
Related Subjects
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR FILTERS
AIR FLOW
AIR POLLUTION CONTROL
CONTROL
DESIGN
EFFICIENCY
EQUIPMENT
FILTERS
FILTRATION
FLANGES
FLUID FLOW
GAS FLOW
MATERIALS
ORGANIC COMPOUNDS
ORGANIC SILICON COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
SEALING MATERIALS
SEALS
SEPARATION PROCESSES
SILOXANES
VISCOSITY