Fluid handling – Liquid level responsive or maintaining systems – Control of outflow from tank
Reexamination Certificate
2005-05-03
2005-05-03
Walton, George L. (Department: 3753)
Fluid handling
Liquid level responsive or maintaining systems
Control of outflow from tank
C137S002000, C137S015260, C137S397000, C137S398000, C137S423000, C137S430000, C137S433000, C405S036000
Reexamination Certificate
active
06886588
ABSTRACT:
A buoyancy flushing apparatus is disclosed which comprises a reservoir for accumulating liquid, having an inlet for receiving liquid and an outlet chamber recessed in a bottom wall of the reservoir. The outlet chamber includes an outlet for draining liquid out of the reservoir. The apparatus further comprises an outlet valve movable between a down position where liquid accumulates in the reservoir and a raised position where liquid accumulated in the reservoir is flushed out via the outlet. The outlet valve comprises a ballast unit sized and shaped to fit loosely in the outlet chamber when said valve is in the down position; and a float unit topping the ballast unit to move the valve in the raised position by buoyancy when a sufficient amount of liquid is accumulated in the reservoir, thereby providing a passageway for liquid between the bottom wall of the reservoir and the valve leading to the outlet in the outlet chamber to flush liquid out of the reservoir. Guiding means are provided for guiding the outlet valve between the down position and the raised position. The apparatus can be used for applications such as water treatment and irrigation. It could advantageously be used for directing and spreading waste water previously treated in a septic tank to different sanitary treating fields.
REFERENCES:
patent: 548685 (1895-10-01), White
patent: 602525 (1898-04-01), Scott
patent: 847361 (1907-03-01), Palmer et al.
patent: 1140666 (1915-05-01), Cummings
patent: 1677970 (1928-07-01), Janette
patent: 1897313 (1933-02-01), Wilheim
patent: 1906277 (1933-05-01), McGee
patent: 2904062 (1959-09-01), Techler
patent: 3126907 (1964-03-01), Tischler et al.
patent: 3522013 (1970-07-01), Borgeson
patent: 4535800 (1985-08-01), Leech
patent: 5290434 (1994-03-01), Richard
patent: 5381956 (1995-01-01), Robinson et al.
patent: 6112766 (2000-09-01), Zoeller et al.
patent: 6152650 (2000-11-01), Heine
patent: 2121994 (1995-10-01), None
patent: 523.281 (1919-03-01), None
patent: 2592595 (1987-07-01), None
patent: 2654758 (1991-05-01), None
patent: 2654761 (1991-05-01), None
patent: 2654829 (1991-05-01), None
patent: 2760030 (1998-08-01), None
patent: WO 9960221 (1995-11-01), None
patent: PCTCA 03/01411 (2003-09-01), None
Tuf-Tite, 6-Hole Distribution Box, publicity, 1998, Tuf-Tite Corporation.
Polylok's Dipper Box, publicity on Internet, www.polylok.com/dipper, 1997.
Polylok's New Equalizer, publicity on Internet, www.polylok.com/eqizr, 1997.
The Floating Outlet Dosing Distribution Chamber, publicity, L.I.Z. Electric, Keeseville, N.Y., USA.
Séparateur de debit gravitaire Zabel, publicity, Premier Tech Environment, 1998.
Regard de répartition SL—RR 450, Sotralentz.
Assainissement autonome, information sheet.
Tru Flow, Distribution Box System, publicity, Onsite insight.
Bérubé Yves
Dautais Jean-Pierre
Lacasse Roger
Malenfant Marc-André
Viel Nicolas
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