Line piercing valve assembly

Details Line piercing valve assembly Line piercing valve assembly

1985-09-12

1986-09-16

Walton, George L.

Fluid handling

With repair, tapping, assembly, or disassembly means

Tapping a pipe, keg, or apertured tank under pressure

222 83, 285197, F16K 4300

Patent

active

046116249

ABSTRACT:
A line piercing valve assembly has a transverse cylindrical bore for the reception of a length of tubing to be pierced and an interior recess open to the outside disposed within which is a piercing needle and valve member depressable into the bore for flow communication with the pierced or tapped line, the piercing needle and valve member normally being spring urged away from the length of tubing into sealing contact with a valve seat. A depressor pin is removeably attached to the upper end of the piercing needle and valve member for depressing it sufficiently to pierce the tubing upon screw-threading advancement of an internally-threaded cap enclosing the open end of the interior recess, the interior bottom wall of the cap abuttingly engaging the outer end of the pin for this purpose. An "O" ring seated within an annular recess concentric with and open into the cylindrical bore seals against leakage of the tubing pierced.

REFERENCES:
patent: 499956 (1893-06-01), Berry
patent: 1226608 (1917-05-01), Lines
patent: 3240226 (1966-03-01), Burkholder
patent: 3428075 (1969-02-01), Wagner
patent: 4018246 (1977-04-01), Langstroth
patent: 4204559 (1980-05-01), Wagner
patent: 4216793 (1980-08-01), Volgstadt et al.

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