Valves and valve actuation – Rotary valves – Ball valve
Patent
1991-10-24
1992-10-06
Fox, John C.
Valves and valve actuation
Rotary valves
Ball valve
137271, F16K 506
Patent
active
051525038
ABSTRACT:
A dual inlet ball valve for use in controlling the flow of gas to a log lighting device used in a fireplace comprises a valve body having a horizontal inlet connector, a vertical inlet connector, a outlet connector and a valve stem support structure. A horizontal inlet flow passageway extends through the horizontal inlet connector in horizontal alignment with an outlet flow passageway extending through the outlet connector. A vertical inlet flow passageway extends through the vertical inlet connector in vertical alignment with a stem receiving bore in the valve stem support structure. A ball having a bore hole extending therethrough is rotatably supported between the horizontal inlet flow passageway and the outlet flow passageway on valve seats in a ball support structure. A valve stem engaging the ball is operably engageable to rotate the ball from an open position to a closed position. A connecting flow passageway extending between a flared portion of the valve body wall and the ball support structure allows the vertical inlet flow passageway to flow communicate with the horizontal inlet flow passageway.
REFERENCES:
patent: 3308850 (1967-03-01), Gill
patent: 4311298 (1982-01-01), Carlson
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