Valveless shut-off and transfer device

Details Valveless shut-off and transfer device Valveless shut-off and transfer device

1985-05-07

1986-09-23

Chambers, A. Michael

Fluid handling

Flow affected by fluid contact, energy field or coanda effect

Means to regulate or vary operation of device

137 74, 1372511, 138 37, 138 89, 73 231, 7386481, F15C 104

Patent

active

046129596

ABSTRACT:
A valveless gas shut-off and transfer device has a looped conduit with a solder-like material in the loop. This eutectic material solidifies below its critical temperature to block the conduit and is liquefied above its critical temperature to allow passage of gas through the conduit. Baffles on the outlet retain the liquefied solder when gas is passing through the device. The liquid solder flows back to the loop when pressures at the inlet and outlet are equalized. When the solder solidifies, the device is again blocked.

REFERENCES:
patent: 1144306 (1915-06-01), Mock
patent: 1844367 (1932-02-01), Pirani et al.
patent: 1921809 (1933-08-01), Crain
patent: 3063286 (1962-11-01), Nerheim
patent: 3528449 (1970-09-01), Witte et al.
patent: 3800593 (1974-04-01), Bradley
patent: 4089207 (1978-05-01), Patton
patent: 4206650 (1980-06-01), Berber et al.
patent: 4296637 (1981-10-01), Calamur et al.

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