Tray valve for a tray column

Details Tray valve for a tray column Tray valve for a tray column

2006-07-27

2009-06-02

Bushey, Scott (Department: 1797)

Gas and liquid contact apparatus

Contact devices

Wet baffle

Reexamination Certificate

active

07540477

ABSTRACT:
The tray valve for a tray column includes an opening in a tray for a vapor passage and a valve body that is made to match the tray opening. The valve body consists of a top plate and vertically downwardly directed guide limbs arranged at the edge of the plate. The guide limbs have barbs for the anchoring of the valve body in the opening. The material and shape of the valve body are selected so that upon insertion of the valve body into the tray opening the top plate deforms in an arched manner while the guide limbs and barbs without deformation pass through the opening in a snap-fit manner. Weakened portions, in the form of grooves, slits or bores, can be provided in the top plate to facilitate upward arching of the top plate. Any deformation at the inserted valve body can be reversed, with the exception of a slight residual deformation, by an application of force onto the top plate.

REFERENCES:
patent: 3215414 (1965-11-01), Van't Sant
patent: 3287004 (1966-11-01), Nutter
patent: 3696832 (1972-10-01), Maurice et al.
patent: 3770255 (1973-11-01), Nutter
patent: 3815880 (1974-06-01), Price
patent: 4344900 (1982-08-01), Sonnekecker
patent: 5911922 (1999-06-01), Hauser et al.
patent: 6053485 (2000-04-01), Pan et al.
patent: 6193222 (2001-02-01), Fan
patent: 6270062 (2001-08-01), Chuang et al.
patent: 6422539 (2002-07-01), Burton et al.
patent: 2002/0163091 (2002-11-01), Wu
patent: 1361579 (1964-04-01), None
patent: 1018924 (1966-02-01), None

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