Abstract: A waste transfer system includes a toilet bowl, a discharge pipe, and a hopper. The hopper is positioned between the toilet bowl and the discharge pipe. A first valve is disposed between the toilet bowl and the hopper. A second valve is disposed between the hopper and the discharge pipe. A source of fluid is in communication with the hopper for pressurizing the hopper to a predetermined pressure. A method of transferring waste through the waste transfer system includes the step of opening the first valve to permit the passage of waste from the toilet bowl to the hopper and subsequently closing the first valve. The method additionally includes the step of pressurizing the hopper while the first and second valves are closed. The method further includes the step of opening the second valve to thereby force the waste from the hopper into and through the discharge pipe.

Abstract: A service door assembly for a recreational vehicle including a sidewall defining an opening, the sidewall including an inner panel, an outer panel and a cavity therebetween filled with an insulation material. The service door assembly includes a door frame and a door. The door frame is adapted to be disposed in the opening. The door frame includes a plurality of integrally formed mounting tabs interconnected to a remainder of the frame through a living hinge. Each mounting tab is articulable between a first position and a second position such that in the second position a portion of the locking tab extends into the cavity of the sidewall. The door is mounted to the door frame. The door includes an inner member and an outer member connected with a securing arrangement integrally formed therewith. The securing arrangement includes an opening defined by the outer member of a pair of walls of the outer member and a mounting member integrally formed with the inner member.

Abstract: A flush toilet having two nozzles located within its bowl. The two nozzles being oriented in opposite directions and alternately providing pulses of flush water into and around the bowl.

Abstract: A flush toilet having two nozzles located within its bowl. The two nozzles being oriented in opposite directions and alternately providing pulses of flush water into and around the bowl.

Abstract: A valve and vent assembly for a self-contained sanitary system of the type including a toilet structure with a downwardly directed outlet opening and a storage compartment defined and located below the outlet opening, and a waste holding tank removably disposed within the storage compartment. The tank has a fill opening positioned in registry with the outlet opening when the tank is inserted within the storage compartment. The valve and vent assembly is operable to close the fill opening and to seal the tank to prevent leakage of waste from the tank through the fill opening, a vent passage in the storage compartment and communicating with the waste holding tank extends outside of said compartment thereby enabling noxious and odorous air in the holding tank to pass out of the tank.

Abstract: A sanitary toilet system with an integral water supply and manual flush assembly for a recreational vehicle in which a flush water supply tank is provided adjacent a recreational vehicle wall with an inlet extending through the wall, thus eliminating plumbing within the vehicle between a water inlet and the supply tank. A manually operated piston pump is provided in which a clearance exists between the piston and the pump cylinder allowing water to flow past the piston during operation of the pump. This reduces the forces necessary to operate the pump in comparison to a piston in sealing relation to the cylinder.

Abstract: A nitrate deodorant composition is provided which may be used in sewage-related settings such as waste holding tanks. The composition of the present invention comprises sodium, ammonium, potassium, and/or calcium nitrate beads wetted with a fragrance and dusted with a drying agent to produce dry, free flowing granules.

Abstract: A refrigerator for RVs comprising an upright cabinet with an internal cold compartment and a door member mounted on the cabinet for closing said compartment, two pairs of upright hinge pins on the cabinet on opposite sides of the door enables the door to swing from both right and left sides of the cabinet. A single actuator is provided for putting the door from a left swing to a right swing and vice versa. In addition, the actuator can secure the door on the cabinet during RV travel. It can also enable easy removal of the door from the cabinet. Cams and cam followers are associated with the cabinet and the door to cause the door to be lifted when opened and lowered when closed to assure easy opening and closing of the door.

Abstract: The toilet with a deflector shield covering the flush nozzle to deflect a portion of the flush water. The deflected water flows downward to wet the bowl in the area beneath the flush water nozzle. The undeflected water flows onto a ledge at the upper end of the bowl and flows around the bowl where it gradually falls off the ledge and wets the remaining portion of the bowl. Both a foot pedal and a hand lever are provided for flushing the toilet and a cable is used to couple the foot pedal to the hand lever. The hand lever is operably connected to the flush water valve as well as the bowl discharge opening closure member to open both for flushing of the toilet.

Abstract: A door assembly to be attached to a cutout in the side wall of a recreational vehicle for alternatively closing off and providing access to an internal compartment. A body frame is attached to the cut out in the side wall. A door panel is attached by a hinge to the body frame. A pair of push button latch mechanisms, one of which contains an integrated lock, retains the door panel in the closed position. The locking latch may be switched to the locked position when the door is open, automatically locking the door when it is closed. A flexible seal, incorporating a double sealing surface feature, is attached to the perimeter of the door and seats against the frame when the door is closed. The door panel includes a separate door wall and inner and outer door frames which are joined by a retaining clip. The metal retaining clip has a return bent upon itself shape and pointed wedge shaped upset portions for joining the outer and inner door frames.

Abstract: A water flush toilet having an improved flush nozzle in which a portion of the flush water is discharged downward at a higher velocity from the nozzle over a rear section of a toilet bowl for scrubbing the rear section. The remainder of the water is discharged laterally outward at a lower velocity from the nozzle in opposite directions for flow in a spiral path over the bowl surface to rinse the bowl.

Abstract: A battery operated flush assembly for a portable toilet. The flush assembly includes a pump and motor mounted to the toilet's seat section. A battery pack is removably mounted to the seat section and includes terminals which, as a result of mounting, become coupled to the motor. The battery pack supplies electrical power to the motor and includes an actuator, protected from inadvertent actuation within a recess, for electrically closing the electrical circuit and causing operation of the pump to discharge flush water into the bowl. A check valve, located in-line with the discharged flush water, opens in response to the pumping of flush water and is maintained open with minimal line pressure to increase the life of the battery pack. An O-ring is also used to ensure that the battery pack can be easily removed and reinstalled with a fluid tight seal therearound.