Fluid handling – Diverse fluid containing pressure systems – Main line flow displaces additive from shunt reservoir
Patent
1995-01-30
1999-09-07
Rivell, John
Fluid handling
Diverse fluid containing pressure systems
Main line flow displaces additive from shunt reservoir
4321, 220660, B65D 602, E03D 124
Patent
active
059471468
ABSTRACT:
A vacuum tank assembly has a low volume configuration so that it can be used in boats and recreational vehicles where space is at a premium. A stack of components, with a waste tank at the bottom, then a vacuum tank with directly connected vacuum pump, and one or more fresh water tanks, is located remote from a vacuum toilet, with a discharge from the toilet (below a vacuum-tight ball valve) connected to the vacuum tank, which is in turn connected to the vacuum pump, in turn connected to the waste tank. A submersible centrifugal pump may be provided mounted to a cap of the water tank, with an anti-siphon device associated with it. The vacuum tank is of high density polypropylene having flat walls, with no continuous flat surface more than 80 square inches. Lipless duckbill check valves are provided on opposite sides of the vacuum pump, the valves of elastomeric material having a ratio of the wall thickness to thickness of the sealing edges of about 1:1. The waste tank may have a dip tube with a dog leg portion having a large cross-sectional are oval bottom opening to minimize the possibility of clogging.
REFERENCES:
patent: 15192 (1856-06-01), Peale
patent: 3382812 (1968-05-01), Smith
patent: 3501778 (1970-03-01), Minniear et al.
patent: 3529908 (1970-09-01), Smith
patent: 3597517 (1971-08-01), Smith
patent: 3599248 (1971-08-01), Fulton et al.
patent: 3611447 (1971-10-01), Howard
patent: 3663970 (1972-05-01), Drouhard, Jr. et al.
patent: 3732579 (1973-05-01), Allendar et al.
patent: 3774461 (1973-11-01), Smith
patent: 3780757 (1973-12-01), Jordan
patent: 3801991 (1974-04-01), Fulton et al.
patent: 4275470 (1981-06-01), Badger et al.
patent: 4306321 (1981-12-01), Norlin
patent: 4672690 (1987-06-01), Sigler
patent: 4713847 (1987-12-01), Oldfelt et al.
patent: 4819279 (1989-04-01), Sigler et al.
patent: 4974264 (1990-12-01), Brian
patent: 5010602 (1991-04-01), Sargent et al.
patent: 5031249 (1991-07-01), Sargent
patent: 5036554 (1991-08-01), Blount
patent: 5056166 (1991-10-01), Sargent et al.
patent: 5139655 (1992-08-01), Sigler
patent: 5245711 (1993-09-01), Oldfelt et al.
Bailey Ronald J.
Lint Fred Leroy
Sigler James A.
Snyder Pamela Kay
Rivell John
Sealand Technology, Inc.
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