Ventilated Patents (Class 4/475)
  • Patent number: 6081939
    Abstract: A portable toilet comprising a cabana in which a tank is installed to contain liquid and solid waste and a conditioning liquid for said waste, said tank having, in a substantially central position, a port around which an annular seat is provided. Inside the waste-collecting tank, in correspondence to its port, temporary collection apparatus for the waste are provided, being wide enough to substantially cover the whole extension of port. An operating lever for collection apparatus is provided to drive a displacement which causes the unloading of the waste collected thereon after each use, and the subsequent return in a collecting position for a further use. The collection apparatus is removably connected to tank, to clear port when the emptying and cleaning of said tank have to be carried out.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: July 4, 2000
    Assignee: Findeco S.r.l.
    Inventor: Alberto Dainelli
  • Patent number: 5285534
    Abstract: An improved recycling device utilizes a composting container to receive waste materials through vacuum transport from a plurality of toilets and urinals. The composting container includes an upper vacuumized container, a worm chamber, and a liquid drainage bottom container. A plurality of vacuum motors and pumps are utilized to evacuate the vacuumizable container.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: February 15, 1994
    Inventor: Jeremy F. Criss
  • Patent number: 4894872
    Abstract: A waterless sanitation system with ventilation. A toilet within a building is located over a pit having a solids holding basket suspendedly mounted within a liquids holding tank. A plurality of air inlet pipes extend externally of the building downwardly through the basket and into the liquids holding tank with a plurality of apertures provided on the pipes allowing the air to enter both the basket and tank. An exit pipe extends upwardly from the tank through the basket and through the roof of the building. A plurality of apertures in the exit pipe allow the gas within the tank and basket to escape. An exhaust fan is provided to pull the air downwardly through the inlet pipes and the gas outwardly through the exhaust pipe. The inlet pipes have mouths oriented to catch the wind assisting the flow of air.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: January 23, 1990
    Assignee: Outdoor Sanitation Corp.
    Inventors: Charles M. Anderson, Jr., Stephen C. Cline
  • Patent number: 4581780
    Abstract: An outdoor toilet constructed of precast concrete having integral color incorporated therein with the external surfaces being simulative of wood or the like and provided with a vault with a vent stack extending upwardly along one wall of the toilet and communicating with the vault and with a vent cap on the roof of the toilet to provide an offset passageway for venting the vault by using the chimney effect of the vent stack and vent cap. The vent stack includes an access opening in the exterior wall thereof provided with a closure to enable pump out of the vault from a point externally of the toilet. The toilet includes a toilet riser, handrail, toilet tissue holder, window and louver vents and an access door associated with an entrance slab and screen panels along two edges of the entrance slab to prevent direct observation into the interior of the toilet when the door is open. The entrance slab is supported by cantilever arms integral with the vault at one end edge thereof.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: April 15, 1986
    Inventors: Jeffrey L. Hoskins, Gregory L. Hoskins