Valve joint connection

Details Valve joint connection Valve joint connection

1987-01-16

1988-09-06

Chambers, A. Michael

Valves and valve actuation

Rotary valves

Butterfly

403324, 403379, F16K 122

Patent

active

047687509

ABSTRACT:
An improved joint connection between a rotary valve shaft and valve closure member for a fluid valve. A tapered key has a flat surface tapered at a small angle with respect to the opposite key surface. The rotary valve shaft includes a groove with a flat surface. The tapered key is wedged into a passageway in the valve closure member to form an interference fit between the closure member, key and shaft.

REFERENCES:
patent: 2586927 (1952-02-01), Fantz
patent: 3517689 (1970-06-01), Roos
patent: 4057217 (1977-11-01), MacDonald
patent: 4171822 (1979-10-01), Thun
patent: 4546670 (1985-10-01), Gaspardo
patent: 4579477 (1986-04-01), Hartmann

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