Pipe joints or couplings – With assembly means or feature – Thread-cutting means
Patent
1975-10-20
1976-11-09
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Thread-cutting means
285114, 285149, 285259, F16L 3500
Patent
active
039907287
ABSTRACT:
A socket of a hose coupling for use with a nipple, the socket and nipple defining an annular space for receiving and gripping an end of a flexible hose. The socket has a first threaded portion with substantially sharp threads and a helically spaced second threaded portion with a sharp starting thread followed by blunt threads.
REFERENCES:
patent: 2816781 (1957-12-01), Woodling
patent: 2965395 (1960-12-01), Schmohl et al.
patent: 3287033 (1966-11-01), Currie
Arola Dave W.
Castleman, Jr. Curtis H.
Fink Raymond
Oberg, Jr. H. W.
The Gates Rubber Company
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