Pipe joints or couplings – Particular interface – Annular socket
Patent
1978-01-26
1980-08-19
Arola, Dave W.
Pipe joints or couplings
Particular interface
Annular socket
285363, 285424, F16L 2300
Patent
active
042180791
ABSTRACT:
A joint assembly for connecting the ends of a pair of generally rectangular sheet metal duct sections includes a pair of frame members secured to each other and connected to the respective duct end portions. The frame members each have four flange portions with an upstanding channel shaped leg and an angularly extending duct receiving leg. Four angular corner pieces extend into the adjacent channel portion of the upstanding legs to form the generally rectangular frame. The end portions of the ducts are positioned in longitudinal openings in the duct receiving leg and are rigidly secured thereto by spot welding or the like. The frame members connected to the ducts are secured to each other by bolts or the like extending through adjacent corner pieces to rigidly connect the ends of adjacent duct sections. The upstanding channel shaped leg of the angle flange portion has an inturned rebent portion that forms a longitudinal pocket between the rebent portion and the lower wall of the duct receiving leg. A longitudinally extending gasket is positioned in the pocket in sealing relation with the end of the duct wall. The corner pieces have angularly extending legs with longitudinal concave recessed portions therein that exert a force along the transverse dimension of the legs and prevent the inturned rebent portion from bending away from the duct end wall.
REFERENCES:
patent: 3246918 (1966-04-01), Burghurt
patent: 3630549 (1971-12-01), Grimm
patent: 3712650 (1973-12-01), Mez
Adams John M.
Arola Dave W.
Ductmate Industries, Inc.
Price, Jr,. Stanley J.
LandOfFree
Flange type duct joint assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flange type duct joint assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flange type duct joint assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1424967