Pipe joints or couplings – Particular interface – Annular socket
Patent
1992-02-03
1993-03-23
Arola, Dave W.
Pipe joints or couplings
Particular interface
Annular socket
285424, 285915, F16L 2506
Patent
active
051957892
ABSTRACT:
A slip lock connector assembly for joining end-to-end first and second flat-sided ducts made of sheet metal, has a framelike structure defined by a plurality of similar connecting members arranged in coplanar array. Each connecting member is made of pliable sheet metal bent, rolled, and molded to proper form. Each member has a flat main wall with first and second walls at opposite sides defining first and second channels. Both channels are filled with sealant material. The flat end of a side of the first duct in slipped into the first channel and secured by auxilary fastening elements, whereby the sealant in the first channel seals the connector to the flat end of the first duct. The flat end of a side of the second duct is slipped into the second channel and sealed by the sealant therein. In addition the wall of the second channel is formed with a rolled ledge which engages with lock projections on a side of the second duct to secure the second duct to the second channel. The second channel may have a laterally extending flange to stiffen the structure of the connecting member.
REFERENCES:
patent: 1935690 (1933-11-01), Zack
patent: 2275572 (1942-03-01), Somers
patent: 3246918 (1966-04-01), Burghart
patent: 3415543 (1968-12-01), Keating
patent: 4558892 (1985-12-01), Daw
patent: 4941693 (1990-07-01), Spaude et al.
Howard Thomas
Walsh Timothy E.
Arola Dave W.
Loveman Edward H.
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