Port thread

Details Port thread Port thread

1975-06-16

1977-07-05

Callaghan, Thomas F.

Pipe joints or couplings

Particular interface

Tapered

85 46, 285390, F16L 1500

Patent

active

040336158

ABSTRACT:
A method and construction for the formation of an internal thread for fluid or other ports which may receive NPT, BSP tapered, or BSP parallel external threads. The port configuration varies with different nominal tube bore diameters, but comprises one or more of the following:

REFERENCES:
patent: 597000 (1898-01-01), Higbee
patent: 720578 (1903-02-01), Greenfield
patent: 1973848 (1934-09-01), Duffy
patent: 2056112 (1936-09-01), Protin
patent: 3079181 (1963-02-01), Van Der Wissel
patent: 3158390 (1964-11-01), Woodling
patent: 3175850 (1965-03-01), Steczynski
patent: 3323402 (1967-06-01), Gowen, Jr. et al.
"Handbook of Fastening and Joining of Metal Parts", Laughner and Hargan, 1956, p. 63.
"Screw-Thread Standards for Federal Services", 1957, Handbook H28 (1957)-Part II, No. 28, pp. 18-19.
"Automatic Thread Grinding Machines", Jones & Lamson, 1946, pp. 12-13.

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