CA1040113A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Bag filter isolation damper
Assignee: Alstom Power Inc
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Filing: 1975-11-20
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Granted: 1978-10-10
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Expires: 1995-11-20
Abstract
Abstract ABSTRACT OF THE DISCLOSURE A bag filter having inlet and outlet chambers with multiple filter elements therebetween including damper means adapted to selectively isolate individual filter elements thereof to preclude excessive leakage of atmospheric air into a filter housing when said filter elements are being removed for cleaning or repair.
Inventors
- 👤 Ronald J. Renko
- 👤 Charles E. Wiser
Bibliographic Details
Application Number
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Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-02 18:35
CPC Classifications
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Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
110 words
Filter apparatus that comprises a filter housing having an inlet duct for gas to be filtered and a plurality of clean gas outlet ducts for the exhaust of clean gas therefrom, a tube sheet having perforations therein lying intermediate the inlet and outlet ports adapted to divide the filter housing into inlet and outlet chambers, filter means covering the apertures of the tube sheet, partitions in the outlet chamber intermediate outlets for the clean gas divid-ing the outlet chamber into a series of chambers each having an independent outlet port, and removable walls covering each of the sub-divided outlet chambers whereby their removal will permit access to the filter means.
Claim 2
Dependent Claim
110 words
Filter apparatus that comprises a filter housing having an inlet duct for gas to be filtered and a plurality of clean gas outlet ducts for the exhaust of clean gas therefrom, a tube sheet having perforations therein lying intermediate the inlet and outlet ports adapted to divide the filter housing into inlet and outlet chambers, filter means covering the apertures of the tube sheet, partitions in the outlet chamber intermediate outlets for the clean gas divid-ing the outlet chamber into a series of chambers each having an independent outlet port, and removable walls covering each of the sub-divided outlet chambers whereby their removal will permit access to the filter means.
Claim 3
Dependent Claim
30 words
Filter apparatus having an inlet and outlet ports as defined in claim 1 in which each outlet port is pro-vided with valving means that precludes the flow of fluid therethrough.
Claim 4
Dependent Claim
48 words
Filter apparatus having inlet and outlet ports and a perforate tube sheet therebetween with porous filter elements covering each aperture as defined in claim 1, damper means adapted to curtail the flow of fluid through each porous filter, and means outside said housing for actuating said damper means.
Claim 5
Dependent Claim
46 words
Filter apparatus having inlet and outlet ports with porous filter elements therebetween as defined in claim 3 wherein the damper means that curtails flow of fluid, in-cludes an actuating rod, extends transversely across said housing to simultaneously curtail fluid flow through multiple bag filters covered thereby.
Claim 6
Dependent Claim
28 words
Filter apparatus having inlet and outlet ports with porous filter elements therebetween as defined in claim 4 wherein said damper means comprises a series of independent valving devices.
Claim 7
Dependent Claim
48 words
Filter apparatus having inlet and outlet ports with porous filter elements therebetween as defined in claim 5 including means that effectively releases each of said valving devices from the actuating means outside said housing whereby one of said valving devices may be moved relative to the actuating rod.
Claim 8
Dependent Claim
32 words
Filter apparatus having an inlet duct and out-let ducts, as defined in claim 1, wherein the combined area of the outlet ducts is substantially equal to the cross-sectional area of the inlet.
References Cited (Backward Citations)
No citation records indexed.
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