Valves and valve actuation – With correlated flow path – With mounting or support
Patent
1983-04-25
1985-04-16
Scott, Samuel
Valves and valve actuation
With correlated flow path
With mounting or support
251139, 251141, F16K 3102
Patent
active
045111189
ABSTRACT:
An electromagnetic ball valve for a flow medium under pressure such as a respirating gas for a respirator which must be adapted to use with a respirator which operates at a high frequency in the range of fifty times the usual frequency. Such ball valve must be employed in the breathing gas supply so as to open and close the supply path and a small volume of gas internal of this apparatus permits this control. The electromagnetically ball valve is arranged with the electromagnetic pole pieces in a sheath and the pole pieces include a flow passage in which a ball moves between a seat and an abutment under the control of a separate electromagnetically controlled pole piece. The seat is cooperative with the ball valve with one connection for the flow medium and the abutment includes a connection for the space around the ball valve under another flow connection. With a delivery side connection through the space around the ball and with a seal on the seat it acts as a NC valve. With a delivery side connection through the seat against the ball and hence contact on the abutment it operates as a NO valve. Two magnetic coils around the respective pole pieces one having the seat and the other having the abutment move the ball into the desired end position and make remanences ineffective.
REFERENCES:
patent: 2366412 (1945-01-01), Lambert
patent: 4308890 (1982-01-01), Saito
patent: 4347836 (1982-09-01), Frank
Krause Andreas
Kruger Horst
Kuhl Uwe
Anderson G.
Dragerwerk Aktiengesellschaft
Scott Samuel
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