The present invention refers to an unpleasant odor evacuation system applicable to toilets of a public nature (offices, shopping centres, means of transport, hotels, restaurants) or private (houses, apartments, apartment buildings). The system of the present invention has a functional version for an individual toilet, a centralized version for multiple toilets, the latter with a single purpose (evacuation of odors from the bathroom) or multipurpose (evacuation of odors from the toilet and elimination of odors, dust, or particles from areas other than the bathroom).

The present invention relates to a floor drain for draining water from a walk-in floor into a waste water pipe, with an inlet channel socket, a first receiving body for the inlet channel socket, a second receiving body for the first receiving body and a drain housing following the second receiving body in the water drainage direction, which is preferably designed as an odor trap, wherein the first receiving body has a bowl-shaped section, to the outer edge of which a flexible sealing mat is connected in a liquid-tight manner and the bottom of which passes into a first drain connection piece which can be inserted into the second receiving body, wherein the second receiving body has a bowl-shaped section on which an outwardly projecting flange is integrally formed or attached, and wherein the bowl-shaped section of the second receiving body passes into a second drain connection piece.

A waterless urinal having a motion sensor that opens the drain valve. This sensor also turns on an internal venting fan that draws air from in front of the P trap, upwardly thru the fan, and downwardly to vent the air down the sewer after the P trap. The whole system can be operated by a solar-powered battery system making it well suited for use in off-grid locations, areas prone to drought or water shortage, mobile homes, rest stops, and stadiums.

The present disclosure provides a return gas prevention device for a drainage pipe, belonging to the technical field of drainage pipes. The device realizes two functions of water seal and a check valve simultaneously, as well as prevents gas channeling in a drainage process.

Certain exemplary embodiments can provide a system, machine, device, and/or manufacture that is configured for operably releasing condensate received from a condensate-producing unit toward a drain without allowing a substantial quantity of gas to flow through the system, machine, device, and/or manufacture, those embodiments including a float and/or a housing.

The present invention relates to a siphon device with a bypass, comprising: a siphon upper section having a top coupling means for connecting to a drain outlet, a side drain opening having coupling means for connecting to a wastewater utility pipe, wherein the siphon upper section is adapted to enable a direct flow via the side drain opening and thereby to bypass a basin of the siphon, thus evacuating substantial volume of accumulated water directly into the wastewater utility pipe.

The valve is applied in the industry of bathroom furniture, the industry of manufacturing urinals or dry urinals that do not drag waste through water. The valve provides a water seal that does not require dragging water; it is the urine itself that achieves the seal without the odor developed by the urine of the water seal returning to the users' space. A seal is provided by spheres avoiding the use of consumables, such as sealing oil, scent pads, among others. An outlet valve is provided, in a waterless urinal, towards the drainage, preventing the return of foul odors, including a hydraulic trap formed by a tank where a certain volume of urine is formed, a funnel that discharges the new urine into the bottom of the tank, and an upper valve where the seal is carried out by one or two spheres in their respective seats.

The invention relates to an odor trap device for sanitary fixtures, in particular urinals, having a drainage element which has a pipe section, the pipe section defining a sealing wall, having a sealing diaphragm which is in sealing contact with the sealing wall in a closed position and is pushed away from the sealing wall into an open position when fluid, such as urine, is present, and having a holder for mounting the sealing diaphragm relative to the sealing wall. In order to minimise the risk of odor formation in an odor trap device of this kind and also to reliably discharge small quantities of urine or liquid present, it is provided, in accordance with the invention, that the sealing diaphragm is fixed on the holder, the holder being supported below the sealing diaphragm.

Insect blocking devices having floats and flappers to prevent insect access to standing water in traps. A device for insertion into a trap having a float that seals the trap from insects, when in-flow water is not present, and opens as a result of in-flow water, to permit in-flow water to pass and enter the trap.

A waterless urinal cartridge, for waterless urinals, includes a housing and a cover. The housing includes a waste reservoir configured to hold a predetermined volume of wastewater, and a drainage aperture configured so that an amount of wastewater exceeding the predetermined volume of wastewater flows through the drainage aperture to exit the housing. The cover is coupled to the housing and includes a sealing fluid reservoir having walls that define the waste reservoir and the drainage aperture, the walls of the sealing fluid reservoir form a containment perimeter with an open bottom so as to contain a sealing fluid floating on top of the predetermined volume of wastewater, and a plurality of fluid passages direct wastewater from the fluid bowl to the sealing fluid reservoir. The waste reservoir includes a fluid flow control feature that restrains wastewater movement within the waste reservoir in response to a change in vehicle dynamics.