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.

The present invention has its application in the industry of manufacturing bathroom furniture, specifically in the industry of manufacturing urinals or dry urinals, that is, urinals or dry urinals that do not drag waste through water. The advantage of our valve with respect to the valves of the prior art, is that our water seal 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; it incorporates an additional seal of spheres the use of consumables in the product, such as sealing oil, scent pads, among others. Structurally, our invention consists of an outlet valve, in a waterless urinal, towards the drainage, to prevent the return of foul odors, characterized by comprising 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.

A hybrid flushing system for water free urinals is presented with a housing having a wall portion forming a cavity for receiving a cartridge. The housing also includes a flushing fluid inlet portion for receiving a flushing fluid and a flushing fluid directing portion configured to direct the flushing fluid. A cartridge for installation into a housing is presented, including a cartridge wall, a flushing fluid receiving portion and a flushing fluid directing portion to direct flushing fluid received to any portion to clean areas of the housing, the cartridge, and connected plumbing. Steps for cleaning a hybrid flushing system are presented with an act of directing a flushing fluid into an area, where the area is one of a cartridge for a hybrid flushing system, a housing for a hybrid flushing system, and a plumbing system connected with the hybrid flushing system.

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.

A method and apparatus for conditioning an RV/Marine toilet bowl seal are disclosed, including providing an apparatus comprising a plug comprising a handle portion; and a solid foam coupled to the handle portion; wherein the handle portion is configured to allow a user to insert or remove the solid foam of the plug from a discharge opening of an RV/Marine toilet bowl; and wherein the solid foam is configured to make contact with at least a portion of the RV/Marine toilet bowl seal; pouring a conditioner into the discharge opening of the RV/Marine toilet bowl; inserting the plug into the discharge opening of the RV/Marine toilet bowl such that the solid foam contacts with at least a portion of the RV/Marine toilet bowl seal; and rotating the plug by about a quarter of a turn. Other embodiments are described and claimed.

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 method of retrofitting a drainage pipe is disclosed. The method provides removing a pre-existing bathtub drain of a pre-existing bathtub drainage system to expose the concrete-encased drainage pipe, attaching a gasket to an exposed end of the concrete-encased drainage pipe, attaching a drain body to the gasket, attaching a strainer to the drain body, and attaching the drain body to the concrete-encased drainage pipe via the gasket. The drain body and gasket create a water-tight seal with and between the concrete-encased drainage pipe when attached. The method enables a user to convert a pre-existing bathtub drainage pipe to a shower drainage pipe without the added necessity of digging into the concrete surrounding the pre-existing drainage pipe below the pre-existing bathtub drain in order to place a small piece of modern piping material and a secure fastener below the body of the shower drain.

A plumbing drain trap treatment mixture is disclosed. The mixture is poured into a plumbing drain trap to form a layer of the mixture that floats on top of the water in the trap. The mixture layer forms a boundary to prevent evaporation of the water from the trap, thereby maintaining the water in the trap to prevent sewer gas infiltration and pest infiltration to the building. The anti-pest and antimicrobial properties of the mixture may serve to further prevent migration of pests from the sewage drain beyond the trap through the plumbing trap and into the building and/or to protect the barrier itself from microbial infestation. A method of use of a treatment for a plumbing drain trap is also disclosed.

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.