A fluid damper device may include a tube-shaped case with a bottom wall, a tube part and a partitioning protruded part protruded from the tube part, a turning shaft provided with a body part which faces a first end face of the partitioning protruded part and a flange part enlarged to an outer side in the radial direction from the body part and faces a second end face of the partitioning protruded part, a valve body supported on an outer side of the body part, and fluid filled on an inner side of the case. A face of the flange part is provided with a first region structured to contact the partitioning protruded part and a second region where a distance between the second end face and the flange part is set to be wider than the first region along one direction in a circumferential direction.

Embodiments of the present invention provide a grey water flush system for use with vacuum toilets. One embodiment of the system provides a two-stage flush that uses a transient tank in between the toilet bowl and the main aircraft waste tank, which reduces the noise level associated with the flush process because a lesser vacuum is demanded for the first stage of the flush. Embodiments of the system further capture grey water from a sink basin in a reservoir and use that water in the toilet flush process. There is further provided a lavatory odor removal system option that is activated during the second stage of the flush.

An in-toilet leak detector is disclosed, as are communication systems for reporting toilet leaks. The leak detector comprises an inlet that receives water from the toilet's fill tube and diverts it through a flow tube. A capacitive sensor is located between the inlet and an opening of the flow tube from which water flows into the overflow tube of the toilet tank. A housing is connected to the flow tube and the inlet and contains a controller and other electronics, including one or more transceivers. The leak detector measures the duration of water flow and establishes an alert if the water flow is shorter or longer in duration than a calibrated normal duration. The transceivers connect the leak detector to a computer network, and leak alerts are communicated to a server or servers so that they can be forwarded directly to those responsible for fixing the toilets.

An in-toilet leak detector is disclosed, as are communication systems for reporting toilet leaks. The leak detector comprises an inlet that receives water from the toilet's fill tube and diverts it through a flow tube. A capacitive sensor is located between the inlet and an opening of the flow tube from which water flows into the overflow tube of the toilet tank. A housing is connected to the flow tube and the inlet and contains a controller and other electronics, including one or more transceivers. The leak detector measures the duration of water flow and establishes an alert if the water flow is shorter or longer in duration than a calibrated normal duration. The transceivers connect the leak detector to a computer network, and leak alerts are communicated to a server or servers so that they can be forwarded directly to those responsible for fixing the toilets.

A coated smooth surface of a substrate repels liquids and viscoelastic materials and can have anti-staining and anti-biofouling properties. The smooth surface can be coated by applying a chemical layer on the surface and a lubricant. Such coated surfaces are useful for use in toilets, urinals, or other devices for the processing of liquids and viscoelastic materials such as solid or semi-solid metabolic waste of human digestive system. Such coated surfaces can also be applied to windows for buildings or vehicles such as automobiles or camera lenses to repel liquids (e.g., rain), ice, frost, insect residues, and birds' feces.

Systems, methods, and devices relating to urinal, in some examples having a movable portion able to pivot from a generally closed to a generally open position. The urinal may have a drain line engaged with a proximal end of the funnel for conveying urine and rinse water into a sewer line or a toilet bowl and a rinse line coupled with a water supply for rinsing urine therein. The urinal may be movable with the assistance of one or more sensors that may automatically signal other electrical or mechanical components to move one or more portions of the urinal, and may be include elements that seal portions of the urinal when not in use or during cleaning to reduce gas or liquid escaping from the urinal system.

Systems, methods, and devices relating to urinal, in some examples having a movable portion able to pivot from a generally closed to a generally open position. The urinal may have a drain line engaged with a proximal end of the funnel for conveying urine and rinse water into a sewer line or a toilet bowl and a rinse line coupled with a water supply for rinsing urine therein. The urinal may be movable with the assistance of one or more sensors that may automatically signal other electrical or mechanical components to move one or more portions of the urinal, and may be include elements that seal portions of the urinal when not in use or during cleaning to reduce gas or liquid escaping from the urinal system.

A system may include a toilet arranged in an environment; a proximity sensor arranged in the environment and configured to detect proximity data associated with a proximity of a person to the toilet; and at least one controller configured to: determine, based on the proximity data associated with the proximity of the person to the toilet, whether the person is standing in front of the toilet or sitting on the toilet; determine, based on whether the person is standing in front of the toilet or sitting on the toilet, an adjusted amount of water for a flush of the toilet; and modify, based on the adjusted amount of water for the flush, an amount of water used during the flush of the toilet.

A gas management system and method for safe removal of undesirous gas through readily available discharge means comprising a reliable and autonomous block prevention means configured to mitigate the tendency of conduit systems to gradually/abruptly develop blockages from various reasons.

A toilet system that includes a waste receptacle including an outlet configured to channel waste therethrough. The system also includes a conveyor assembly including a housing that includes an inlet and at least one outlet. The inlet is coupled in flow communication with the outlet of the waste receptacle. The conveyor assembly also includes a transport mechanism positioned within the housing, and the transport mechanism is operable to actively transport the waste from the inlet towards the at least one outlet of said housing.