Air-tightening devices in folding doors and windows

Details Air-tightening devices in folding doors and windows Air-tightening devices in folding doors and windows

1992-03-13

1993-04-06

Johnson, Blair M.

Flexible or portable closure, partition, or panel

With filler and filler type

1602291, E06B 716

Patent

active

051994780

ABSTRACT:
Air-tightening devices for folding doors and windows which are consisted of a plurality of panels connected by joint members to swivel about shafts received by bearing flanges of the joint members so that they are stretched or folded. The shafts and their bearing flanges are located outside of the plane of panels. Filler wedges air-tightly embracing said shafts and bearing flanges have smoothly resilient extensions which are coplanar with said plane and are able to make air-tight abutment with sealing liners fitted to lintel rails, independently from another sealing liners provided to lateral sides of the joint members and/or of the panels and being able to make air-tight abutment with the other sides when the panels are stretched.

REFERENCES:
patent: 2882564 (1959-04-01), Couse et al.
patent: 4660613 (1987-04-01), Dagenais
patent: 5099904 (1992-03-01), Susnar

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