Fluid handling – Siphons – With flow starting – stopping or maintaining means
Patent
1981-06-08
1984-01-17
Michalsky, Gerald A.
Fluid handling
Siphons
With flow starting, stopping or maintaining means
137142, 164254, 164337, 222416, 222590, 222595, F04F 1000
Patent
active
044259328
ABSTRACT:
A device for transfer of critical liquids, such as molten metals, has a body member including a short leg inlet liquid conveying passage submergeable in a large storage vessel containing the critical liquid. An intermediate high level liquid conveying passage is disposed over the vessel and connected in fluid transferring relationship to the inlet portion at one end, and at its other end to a long down leg passage which is connected to a smaller liquid storing chamber positioned substantially lower than the liquid level in the storage vessel. A pouring outlet is connected to the lower chamber to conduct liquid out of the lower chamber. The flow of metal is controlled by a vacuum source selectively connectable to the high level passage which causes a siphon action through the device. The lower chamber is adapted in cooperation with its storage vessel, to maintain a vacuum in the system during start up and the transfer of liquid from the storage vessel to the outlet. An intermediate smaller upper metering chamber may be included in the device between the large storage chamber and the short siphon leg for accurate metering of smaller quantities of liquid.
REFERENCES:
patent: 301391 (1884-07-01), Reinecke
patent: 343069 (1886-06-01), Rosewater
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patent: 3552478 (1971-01-01), Lauener
patent: 3670799 (1972-06-01), Vogel et al.
patent: 3815623 (1974-06-01), Farmer
patent: 3921859 (1975-11-01), Colombani
patent: 4143674 (1979-03-01), Portalier
patent: 4179045 (1979-12-01), Colombani
Hershberger Gerald R.
Michalsky Gerald A.
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