Tool for unplugging fire hydrant drains

Details Tool for unplugging fire hydrant drains Tool for unplugging fire hydrant drains

1987-01-09

1988-05-03

Rosenbaum, Mark

Metal working

Means to assemble or disassemble

Valve applying or removing

151043, 2940206, B23P 1904

Patent

active

047410833

ABSTRACT:
Fire hydrant drain holes are unplugged from within a hydrant barrel by removing the bonnet and valve gear from the top of the barrel and using a specialized drilling tool which is inserted into the barrel to fit on the valve seat. The tool has a drill bit which aligns with the drain hole and a flexible drive wire for the drill bit which extends to the top of the barrel for operation from above the hydrant.

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patent: 3697188 (1972-10-01), Pope
patent: 4139931 (1979-02-01), Royce
patent: 4184795 (1980-01-01), Medlin
patent: 4364140 (1982-12-01), Irwin

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