Fluid handling – Diverse fluid containing pressure systems – Main line flow displaces additive from shunt reservoir
Patent
1998-03-25
1999-10-26
Michalsky, Gerald A.
Fluid handling
Diverse fluid containing pressure systems
Main line flow displaces additive from shunt reservoir
4431, 4441, 13761419, 137899, E03C 112
Patent
active
059710055
ABSTRACT:
A conventional recreation vehicle or caravan toilet, which normally is connected by a simple slide valve to a holding tank mounted below it, can be easily converted to a vacuum toilet at a campground or like stationary site. The holding tank is slid out of the compartment in which it is mounted below the toilet of the recreation vehicle or caravan, and a vacuum adaptor is slid into its place, making a substantially airtight connection with the toilet. The vacuum adaptor is connected up to a substantially stationary vacuum source, such as a below ground vacuum tank at a campground. The vacuum adaptor is preferably connected by a dripless connection to the vacuum source, and includes an arcuately shaped movable valve element that is rotatable about a substantially horizontal axis from a substantially airtight closed position, to an open position, when the toilet is flushed.
REFERENCES:
patent: 4376315 (1983-03-01), Badger et al.
patent: 4776631 (1988-10-01), Sargent et al.
patent: 5271105 (1993-12-01), Tyler
patent: 5345618 (1994-09-01), Sigler et al.
patent: 5653262 (1997-08-01), Hanemaayer
patent: 5829471 (1998-11-01), Hofseth
"Thetford Cassette Toilets" commercial literature; Nov. 1995.
McKiernan Edward
Sigler James A.
Michalsky Gerald A.
Sealand Technology, Inc.
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