Drain hole

Details Drain hole Drain hole

1980-07-02

1984-01-10

Arola, Dave W.

Pipe joints or couplings

With leakage or drip disposal

Weep holes

138 40, 65101, 65309, 415168, 285156, F16L 5500

Patent

active

044249896

ABSTRACT:
An improved drain hole is provided for a pneumatic line of a gas turbine engine. The improvement is essentially comprised of an enlargement that prevents liquid surface tension at the drain hole outer opening from inducing buildup of liquid inside the pneumatic line.

REFERENCES:
patent: 2111878 (1938-03-01), Tongeren
patent: 2249469 (1941-07-01), Gray et al.
patent: 2433589 (1947-12-01), Adams
patent: 2526219 (1950-10-01), Goddard
patent: 2921432 (1960-01-01), Morcotte et al.
patent: 3426526 (1969-02-01), Tornmarck
patent: 3906984 (1975-09-01), Rich et al.
patent: 3977426 (1976-08-01), Pyle
patent: 4052178 (1977-10-01), Frantz
patent: 4224826 (1980-09-01), McLoughlin

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