Pipe joints or couplings – Connector for conduit housing electromagnetic line: – Underground
Patent
1974-08-16
1976-05-18
Arola, Dave W.
Pipe joints or couplings
Connector for conduit housing electromagnetic line:
Underground
285423, F16L 4100
Patent
active
039572927
ABSTRACT:
Quick-connect fittings for a trickle-type irrigation system wherein the fittings include gripping means thereon for quickly and easily joining the fittings to plastic pipes and the like without requiring the use of tools. In one form of the invention, the fitting has piercing means thereon for penetrating the wall of a plastic pipe to make a secure and leak-tight connection thereto without requiring the use of tools; and in another form of the invention, adjustable resilient orifice means is in the fitting.
REFERENCES:
patent: 2346051 (1944-04-01), Seamark
patent: 2760824 (1956-08-01), Leadbetter
patent: 3751075 (1973-08-01), Rosenberg
patent: 3767233 (1973-10-01), Hodge
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