Sludge digesters with separate liquid chambers to buoy ballast m

Details Sludge digesters with separate liquid chambers to buoy ballast m Sludge digesters with separate liquid chambers to buoy ballast m

1990-03-12

1992-03-03

Pollard, Steven M.

Receptacles

Closures

Floating closure

210608, 210DIG9, CF2

Patent

active

050924826

ABSTRACT:
A sludge digester gas-holder is disclosed having a gas-holding cover with ballast members submergible in a liquid medium contained within a chamber circumscribing the upper portion of the tank wall and separate from the main tank cavity.

REFERENCES:
patent: 1714209 (1929-05-01), Bohnhardt
patent: 1735461 (1929-11-01), Haupt
patent: 1906685 (1933-05-01), Wiggins
patent: 1919634 (1933-07-01), Haupt et al.
patent: 1930953 (1933-10-01), Hampton
patent: 1989589 (1935-01-01), Fischer et al.
patent: 2061175 (1936-11-01), Staber
patent: 2132837 (1938-10-01), Talbot
patent: 2541090 (1951-02-01), Orr et al.
patent: 2679477 (1954-05-01), Kivari et al.
patent: 3288295 (1966-11-01), Kelly
patent: 4166835 (1979-09-01), Anderson
patent: 4173291 (1979-11-01), Hills
patent: 4391705 (1983-07-01), Cook et al.

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