Adapter for plastic pipe

Details Adapter for plastic pipe Adapter for plastic pipe

1988-11-16

1990-03-06

Peters, Jr., Joseph F.

Fire extinguishers

Miscellaneous: e.g., blowers

169 37, 169 5, 285238, 285330, 285222, 2853824, 285239, 285915, A62C 3900, A62C 3708

Patent

active

049057669

ABSTRACT:
This invention relates to an adaptor for connecting a non-metallic pipe to a threaded metallic element, such as a sprinkler head, in leak-tight fluid communication. The adapter comprises a plastic coupling unit which is adhesively secured at one end to plastic pipe and adapted at the other end thereof to receive a threaded metal insert which may be threadably connected to a metal element, such as a sprinkler head. The adapter of the invention is particularly suitable for use in high pressure fire extinguishing systems.

REFERENCES:
patent: Re18840 (1933-05-01), Eastman
patent: 2467036 (1949-04-01), Iftiger, Sr.
patent: 2776151 (1957-01-01), Harkenrider
patent: 3279532 (1966-10-01), Pfeil, Jr.
patent: 3807776 (1974-04-01), Bingham
patent: 4021062 (1977-03-01), Mariaulle
patent: 4076280 (1978-02-01), Young
patent: 4128264 (1978-12-01), Oldford
patent: 4341481 (1982-07-01), Wollensak
patent: 4606783 (1986-08-01), Guest

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