The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 1987
Filed:
Dec. 10, 1985
Bertil Larsson, Tyreso, SE;
Flakt Aktiebolag, Nacka, SE;
Abstract
The invention relates to a suspended ceiling structure for rectangular filter elements (12,13), comprising a framework with outer (1) and inner (2) U-shaped channels which slidingly fit together and are suspended on tie rods (9) in an upper ceiling. The channels are intended to support skirts (14,15) arranged along the edges of the filter elements, said skirts being received in a sealing fluid (16) which forms an airtight seal for the air which is under the filter elements and is intended to flow through the same. The U-shaped channels are provided with grooves (3,4) at their web portions, the grooves being turned outwards and intended to form attachments for the ceiling tie rods and for elements (24) to be suspended from the framework. The ends (5,6) of each outer channel (1) are bent inwards to retain the inner channel (2) between the shanks and to prevent its withdrawal in a direction transverse to the longitudinal direction of the channels.