초록 ▼

A vacuum toilet system for a vehicle (such as a boat) has numerous advantages. A single pump with valves on opposite sides of it may be used as both the vacuum source and for discharging sewage from a holding tank. Two sets of multiple heads may be selectively connected to two pumps for emergency pu

A vacuum toilet system for a vehicle (such as a boat) has numerous advantages. A single pump with valves on opposite sides of it may be used as both the vacuum source and for discharging sewage from a holding tank. Two sets of multiple heads may be selectively connected to two pumps for emergency purposes. The vacuum toilet includes a sealing element with an integral movable valve engaging element including polytetrylflouroethylene and synthetic rubber, and at the same durometer (55-65). The initial passageway provided by movement of the valve with respect to the seal is disposed directly above the center line of an orifice. An anti-siphon valve assembly has a simple construction of a housing with parallel legs and anti-siphon air passage in alignment with one of the legs. A spray nozzle extends from the other legs of the anti-siphon valve assembly. The toilet funnel/orifice is universally connected to conduits. The vacuum tank is blow molded of plastic, has universal ports including one continuous from the tank walls so that no accumulation takes place in the tank. Longitudinal ribs along the tank provide for easy connection to a support. A vacuum sensor is mounted to one of the vacuum tank ports with fasteners disposed exteriorly of the tank, and without the need for an O-ring. The pump comprises a rolling diaphragm pump in a housing with a sump, and the stem from the pump is plastic with pegs that are staked or ultrasonically welded to the movable pump element. A powdered metal crank arm connects the pump stem to a drive motor, the crank arm being the fail-safe part of the pump.

대표청구항 ▼

A vacuum toilet system for a vehicle comprising: a vacuum toilet including a valve; a vacuum tank operatively connected to said vacuum toilet below said valve; a vacuum pump operatively connected to said vacuum tank; and a holding tank operatively connected to said vacuum pump; said vacuum tank comp

A vacuum toilet system for a vehicle comprising: a vacuum toilet including a valve; a vacuum tank operatively connected to said vacuum toilet below said valve; a vacuum pump operatively connected to said vacuum tank; and a holding tank operatively connected to said vacuum pump; said vacuum tank comprising a plastic tank including at least three ports, each of said ports being substantially identical to the other ports to allow interchangeability of the connection between said ports and other components; an inlet conduit operatively connected to one of said ports; an outlet conduit operatively connected to another of said ports; and a vacuum sensor operatively connected to a third of said ports; at least one of said ports defined by a continuation of a wall of said tank so that said port can be operatively connected to an outlet conduit so that no accumulation of sewage material within said tank take place.