The present invention discloses a hydraulic energy storage mechanism, including a cylinder block, a cylinder body, a piston, a support, and a latch bolt component. In the present invention, a cylinder body, a piston, and a support structure being provided with a power slide block is used, and the tap water pressure is applied to push the piston to compress a spring and converted into elastic potential energy; the power slide block is driven by releasing the elastic potential energy to operate a suction drainage device of a water closet. The present invention has advantages of a small volume, large acting force, a simple structure, and reliable working, and effectively improves sewage drainage efficiency of the water closet.

Embodiments of the present disclosure relate generally to a toilet bidet system for use on a passenger transportation vehicle. In particular, there is described a bidet rinse ring that converts a standalone toilet to a combined toilet and bidet system. Designs find particular use onboard passenger transportation vehicles, such as aircraft. Such systems benefit from efficient space management and generally cannot support a separate toilet and bidet. The bidet rinse ring described herein may come factory-mounted on the toilet. In other examples, the bidet rinse ring may replace a standard rinse ring in order to retrofit an existing toilet.

Embodiments of the present disclosure relate generally to systems and methods for reducing sound in vacuum toilets. In one example, multiple rinse injections are used at appropriately timed intervals in order to reduce the vacuum flush sound levels.

A contamination unit for isolating a building from contamination of a sewer is disclosed. The contamination unit includes a housing with an inlet and an outlet, a trap assembly, and a fluid trigger. The inlet is in fluid communication with a fluid source, plumbing equipment, and/or condensating equipment to receive fluid. The housing has a reservoir to collect the fluid therein and to define a reservoir portion of a contamination barrier about the outlet. The trap assembly includes a trap conduit between the outlet and the sewer that is shaped to collect the fluid therein and define a trap portion of the contamination barrier. The fluid trigger is positionable about the housing to selectively release the fluid through the inlet and into the reservoir of the housing whereby the fluid in the contamination barrier is maintained to prevent the contamination from passing from the sewer into the building.

A control system for a pneumatically operated toilet includes a valve arrangement and a controller. The valve arrangement includes a plurality of solenoid operated valves. The controller includes a microprocessor in signal communication with the plurality of solenoid operated valves, the controller configured to operate the valve arrangement to independently control operation of a water valve for selectively introducing water into a toilet bowl of the pneumatically operated toilet, operation of a flapper valve operating cylinder for opening and closing a waste opening of the toilet bowl, and pressurized air supply to a waste transfer chamber of the pneumatically operated toilet.

An example system includes a sewage pit; a suction pipe extending into the sewage pit; and a valve between the sewage pit and a vacuum pipe having a vacuum pressure. The valve is controllable to close or to open to allow content to flow from the sewage pit, through the suction pipe, to the vacuum pipe. A sensor tube extends into the sewage pit to sense a fill level of the sewage pit. The suction pipe is configured as a back-up to the sensor tube for sensing the fill level of the sewage pit. The valve is controllable based on a pressure in at least one of the suction pipe or the sensor tube meeting or exceeding a predefined level.

An enhanced abandoned call recovery (E-ACR) process allows certain abandoned calls to be eligible for a callback call. An E-ACR assignment point defines which abandoned calls in an inbound campaign or interactive voice response (IVR) menu are eligible to be processed to determine whether the E-ACR callback should occur. The determination of whether a callback occurs involves various compliance tests, such as ensuring calling window, call attempts, and other regulatory concerns are addressed. Once a callback is determined to occur, it is associated with a specific campaign to ensure the called party is provided with agents having the skill set as defined for that assignment point. In this manner, only eligible callers receive an E-ACR callback, and further receive the callback in a compliant manner and handled by the same skill set of agents as would have been allocated to the caller had they not abandoned their call.

A method of removing debris from a lavatory on a vehicle, a lavatory debris removal vacuum apparatus, and a method of manufacturing a debris removal vacuum system. A vacuum supply line is connected to a vacuum toilet in a lavatory and configured to provide suction to the vacuum toilet. A vacuum socket is connected to the vacuum supply line and configured to have a tube attached thereto that extends from the vacuum socket into the lavatory. The suction is provided by the vacuum supply line through the vacuum socket to the tube to remove debris from the lavatory into the tube as the tube is positioned in the lavatory by an operator.

Method for controlling a vacuum sewage system for a building or for a marine vessel, which includes a vacuum unit (11), vacuum piping (7), a source of sewage (91, 92, 93, 94), and a discharge valve (8) between each source of sewage and the vacuum piping, wherein the vacuum unit generates a predetermined vacuum level in the vacuum piping, in which method the operation of the vacuum sewage system is monitored. In order to ensure an efficiently operating vacuum sewage system, the running time of the vacuum unit is monitored and the vacuum level of the vacuum piping is monitored.

An apparatus for controlling the waste outlet of a toilet includes, according to an implementation, a motor comprising a Hall effect sensor that detects the rotation of the motor and generates a position signal in response thereto; a mechanical actuator coupled to the motor; a door coupled to the mechanical actuator, wherein the door is disposed at the waste outlet of the toilet; logic circuitry that receives the position signal, generates a control signal to move the door based at least in part on the position signal, and transmits the control signal to the motor. The motor operates according to the control signal to drive the mechanical actuator to move the door.