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US 6,598,242 B1Granted
Low profile transportable sewage holding tank
OwnerRobert P. Denomeinventor
Life of this patent
Estimating the term…
Abstract
A low profile transportable holding tank for accepting waste from portable toilets. The holding tank is carried on a flatbed vehicle and has a flat deck for cargo, thus effectively increasing the cargo-carrying capacity of the vehicle compared with that available if the vehicle were carrying a conventional holding tank. Internal reinforcement enables the holding tank to withstand a partial vacuum imposed for pumping waste into the tank.
Claims26
A low profile transportable sewage system, comprising:
- (a) a holding tank having a deck, a floor, and a wall between the deck and the floor;
- (b) at least one reinforcing member attached to the floor;
- (c) a plurality of support pillars attached to the reinforcing member and extending upwardly therefrom;
- (d) a deck-support member corresponding to each reinforcing member, the deck support member being attached to the support pillars;
- and
- (e) a drainage channel within the holding tank with a higher end and a lower end, the higher end being generally level with the floor;
- the holding tank having an aspect ratio of at least 6 and capable of being evacuated to withstand a pressure differential of at least 12″ of mercury.
4 more elements
A low profile holding tank, comprising:
- (a) a deck, a floor, and a wall between the deck and the floor;
- (b) at least one internal support assembly extending between the floor and the deck;
- and
- (c) a drainage channel with a higher end and a lower end, the higher end being generally level with the floor;
- the holding tank having an aspect ratio of at least 6 and capable of being evacuated to withstand a pressure differential of at least 12″ of mercury.
2 more elements
A method of handling waste from portable toilets, comprising:
- (a) constructing a holding tank having a deck, a floor, and a wall between the deck and the floor;
- at least one internal support assembly extending between the floor and the deck;
- and a drainage channel with a higher end and a lower end, the higher end being generally level with the floor and the lower end having a discharge port;
- the holding tank having an aspect ratio of at least 6;
- (b) installing the holding tank on a vehicle to substantially occupy a cargo space thereof;
- (c) connecting a pumping system to the holding tank;
- (d) actuating the pumping system to evacuate the holding tank so that the support assembly increasingly absorbs pressure from the deck;
- (e) fluidly connecting the holding tank and a portable toilet such that waste from the portable toilet is transferred to the holding tank;
- (f) disconnecting the holding tank and the portable toilet after the waste has been transferred;
- (g) shutting off the pumping system;
- (h) transporting the holding tank to a selected destination;
- and
- (i) discharging the waste in the holding tank through the discharge port.
10 more elements
Dependencies are inferred from the claim text.