Valve servicing tool

Details Valve servicing tool Valve servicing tool

1985-11-13

1987-11-17

Watson, Robert C.

Metal working

Means to assemble or disassemble

Valve applying or removing

B23P 1904

Patent

active

047063572

ABSTRACT:
A tool is provided for repairing valve elements in pressurized systems having a valve stem and a valve core. A block member has a passage therethrough at which a valve stem engagement structure is affixed. A slide member is dovetailed to slide along the block member. The slide member also has a passage therethrough such that in one sliding position of the slide member relative to the block member the respective passages align to allow a tool to be passed through the slide member, block member, and valve stem engagement structure to service the valve. When the passages are misaligned, the passage through the block member is substantially sealed from gas leakage by abutment with the dovetail-attached slide member.

REFERENCES:
patent: 184686 (1876-11-01), Miller
patent: 249526 (1881-11-01), Hubbell
patent: 435193 (1981-12-01), Anderson
patent: 906158 (1908-12-01), Raymond
patent: 2343146 (1944-02-01), Jenkins
patent: 2647419 (1953-08-01), Dickason
patent: 2687903 (1954-08-01), Zeeb
patent: 3148690 (1964-09-01), Petersen
patent: 3561090 (1968-11-01), Fritch
patent: 3576195 (1971-04-01), Richard, Jr.
patent: 3840967 (1974-10-01), Olson
patent: 3935713 (1976-02-01), Olson
patent: 4324270 (1982-04-01), Mullins

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