Valve for a contact tray

Details Valve for a contact tray Valve for a contact tray

2006-07-18

2009-06-02

Bushey, Scott (Department: 1797)

Gas and liquid contact apparatus

Contact devices

Wet baffle

Reexamination Certificate

active

07540476

ABSTRACT:
The valve for a contract tray employs an aperture in a deck that is of rectangular or trapezoidal shape with upstanding walls at the sides of the aperture. The valve body is disposed in the aperture with a cover above the aperture and legs that extend downwardly to interfit with at least the upstream end of the walls to block the liquid flow. The valve body may be fixed or movable. In the movable embodiment, the valve body is seated on the walls about the aperture to close the aperture. The ascending vapor lifts the valve to allow bubbling of the vapor in the liquid on the deck.

REFERENCES:
patent: 2443812 (1948-06-01), Ackroyd
patent: 3025041 (1962-03-01), Sandler
patent: 3770255 (1973-11-01), Nutter
patent: 4382901 (1983-05-01), Thomas
patent: 6145816 (2000-11-01), Chuang
patent: 6270062 (2001-08-01), Chuang
patent: 2007/0227595 (2007-10-01), Zhang
patent: WO 99/19054 (1999-04-01), None
patent: WO 00/24489 (2000-05-01), None
patent: WO 2006/007783 (2006-01-01), None

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