Abb Flakt Ab

Flakt Aktiebolag

Flakt, Ab

Abb Flakt Aktiebolag

Bertil Larsson

Walter Berg

A filter unit for airtight attachment to a framework of a cleanroom ceiling includes a filter, a circumferential wall surrounding the filter, and a downwardly projecting sealing knife to be received in a sealant containing groove formed in said framework. The sealing knife includes vertical weldable wall elements interconnected by welding and mounted on the circumferential wall by airtight mounting means.

Cleanroom filter unit

Beam construction in ceilings of clean air rooms

Equipment for air supply to a room

A clean-room wall including vertically extending wall profile members (2,4,6) against which one or several wall panels (10) are mounted. In their sides, facing the interior (14) of the room, the profiles are formed substantially parallel with the wall extending flanges (8) against which the wall panel is arranged from the outside, as seen from the interior of the room. Fastening mechanisms (12) are arranged at the outside of the wall panel for fastening of the panel to the profile flange members.

Clean-room wall

Channels for a filter bank supporting latticework

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.

Suspended ceiling structure for rectangular filter elements

Growing community of inventors

Tyreso, Sweden

Bertil Larsson