US4218079A
(en )
1980-08-19
Flange type duct joint assembly
US4288115A
(en )
1981-09-08
Duct jointing system
DE2313425C3
(en )
1981-08-13
Flange connection for the mutual fastening of duct sections made of sheet metal with a substantially rectangular cross-section, in particular for high-pressure ventilation systems
DE2221312B2
(en )
1979-12-06
Rectangular air conditioning duct prefabricated flanged joint - has longitudinal insert with seal between it and frame leg wall area
DE2353625A1
(en )
1975-05-07
Spring clip connection for rectangular air ducts - has prefabricated profile flanges with integral elastic seal strip
EP0085355B1
(en )
1986-11-12
Device for the connection of air-channel elements provided with flange sections at their edges which form openings for corner angles
GB2082282B
(en )
1983-04-07
Improvements in or relating to flange type duct joints
EP2063195A1
(en )
2009-05-27
Device for connecting air channel elements with butyl sealing for gluing of flange and air channel element
EP0014123A2
(en )
1980-08-06
Process and apparatus for joining fluid flow ducts
DE3509080C2
(en )
1991-12-19
DE3716136C2
(en )
1994-03-17
Profile for flange connections of ventilation ducts
DE2111161A1
(en )
1972-09-21
Asymmetrical flange connections for ducts of angular cross-section made of sheet metal
DE7025770U
(en )
1972-03-23
FLANGE CONNECTING DEVICE.
DE7501145U
(en )
1978-01-26
Flange connection for rectangular air conditioning ducts
DD69697A
(en )