FR2201111A1
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Encased, vertical pocket dust filter - with pocket internal support frames which can be re-used with new pockets
Assignee: Air Industrie SA
•
Filing: 1972-09-27
•
Granted: —
•
Expires: 1992-09-27
Abstract
Abstract Each filter pocket has its two long vertical sides zig-zagged with the sides seamed together at apexes of the zig-zags to leave vertical, filtered air channels between the seams. Inside each channel, a support frame comprises two vertical rods which lie in a plane at right angles to the plane of the pocket and are joined by spaced cross bars positioned like rungs of a ladder. The support frames pref. locate from each other via spacers extending at right angles to the cross-bars. The frame can be made cheaply and is very easily fitted; it can be used repeatedly with the new pockets.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 21:54
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D46/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.