Pipe joints or couplings – Connector for conduit housing electromagnetic line: – Including swivel
Patent
1981-03-31
1984-05-22
Callaghan, Thomas F.
Pipe joints or couplings
Connector for conduit housing electromagnetic line:
Including swivel
4211, F16L 4100
Patent
active
044497415
ABSTRACT:
A plumbing network section for multi-storied construction is disclosed which uses an integral waste stack segment and waste receiving manifold for receiving waste from plumbing fixtures, and with multiple vents in the waste receiving manifold arranged for connection to a vent manifold. The combination waste stack section and waste manifold, and also the vent manifold uses sleeve type construction for connection to pipes which simplifies assembly in the field and effects reduction in labor and parts costs.
REFERENCES:
patent: 1081633 (1913-12-01), Smith
patent: 1086938 (1914-02-01), Rock
patent: 1197395 (1916-09-01), Politsky
patent: 1640058 (1927-08-01), Stringer
patent: 1718450 (1929-06-01), Backus
patent: 1868355 (1932-07-01), Goldberg
patent: 2652069 (1953-09-01), Goheen
patent: 3495281 (1970-02-01), Palowsky
patent: 3711128 (1973-01-01), Hezel et al.
Litvin Robert L.
Price David W.
Callaghan Thomas F.
Lettvin Norman
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