Pipe joints or couplings – With assembly means or feature – Molded joint facilitator
Patent
1990-01-09
1992-09-29
Kundrat, Andrew V.
Pipe joints or couplings
With assembly means or feature
Molded joint facilitator
2851371, 285175, 285331, 285919, 285923, 219544, 219535, 264 403, F16L 4702
Patent
active
051509229
ABSTRACT:
The improved electrofusion joint and header for supplying hot water that perform satisfactorily at elevated temperatures as evidenced by high heat resistance, that exhibit good sealing property and that can be handled efficiently in mounting and various other operations have a crosslinked thermoplastic resin layer and at least one joining portion which comprises a non-crosslinked thermoplastic resin layer that is formed a as an integral part of said crosslinked thermoplastic resin layer in the area where it contacts a tubular member to be joined, and a heating electric wire provided either within or on the outer or inner surface of said non-crosslinked thermoplastic resin layer. Such electrofusion joint and header are applicable to any part of a piping system for supplying hot water and they will withstand use for a prolonged period.
REFERENCES:
patent: Re29054 (1976-11-01), Lange
patent: 2798745 (1957-07-01), Nelson
patent: 3348862 (1967-10-01), Leopold, Jr. et al.
patent: 3583710 (1971-06-01), Burelle
patent: 3788928 (1974-01-01), Wise
patent: 3907625 (1975-09-01), Vogelsanger
patent: 3975039 (1976-08-01), Penneck et al.
patent: 4050722 (1977-09-01), Berger et al.
patent: 4070044 (1978-01-01), Carrow
patent: 4076282 (1978-02-01), Scott, Jr. et al.
patent: 4256333 (1981-03-01), Jones
patent: 4353355 (1982-10-01), Stewart
patent: 4436988 (1984-03-01), Blumenkrang
patent: 4631212 (1986-12-01), Shifflett et al.
patent: 4727242 (1988-02-01), Barfield
patent: 4906313 (1990-03-01), Hill
patent: 4927184 (1990-05-01), Bourjot et al.
Mito Kazunori
Nagatani Fumio
Nakaoka Mikio
Nakashiba Akio
Nishimura Hiroyuki
Chon Heather
Kundrat Andrew V.
Mitsui Petrochemical Ind. Ltd.
Osaka Gas Co. Ltd.
Shinwa Sangyo Co., Ltd.
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