Abstract: A sewage backflow prevention device is installed in a gravity flow waste pipe, particularly for a residence or residences. The device includes a cylindrical body with a closed top, outflow holes in the sides, and an open bottom to be secured to the upper end of a Tee in the gravity flow sewage pipe, between the residence and the sewer. Within the cylindrical body is a hollow, floatable disk or float ball that normally closes the bottom of the backflow device preventing escape of gases. When a downstream blockage occurs, liquid rises into the device, floats the closure disk or ball upward and flows outwardly through the openings. At valve closure position the valve closure disc or ball is mostly below the outflow holes such that rats or other rodents cannot push under and lift the ball or disc.

Abstract: A condensate trap for an air handling unit is provided. The condensate trap includes at least one channel configured to selectively receive condensation flowing from the air handling unit, a drain outlet configured to selectively discharge condensation from the at least one channel, and a sealing device configured to float above condensation flowing from the least one channel to the drain outlet. The sealing device is further configured to sit atop a bottom surface of the at least one channel such that a seal is created when the at least one channel does not contain condensation, and to prevent a flow of contaminated air from the drain outlet to the air handler without completely blocking airflow from the sealing device to the air handler.

Abstract: A condensation trap comprising an inlet chamber configured to receive condensate liquid through a receiving opening therein. The trap also comprises an internal chamber in fluid communication with the inlet chamber via a first internal opening defined by a sidewall shared by the inlet chamber and the internal chamber, the first internal opening located at an opposite end of the inlet chamber from the receiving opening. The trap also comprises an outlet chamber in fluid communication with the internal chamber via a second internal opening located at an opposite end of the internal chamber from the first internal opening. The trap also comprises a bleed orifice located in a sidewall shared by the internal chamber and the outlet chamber, wherein at least a portion of the bleed orifice is lateral to first internal opening.

Abstract: Certain exemplary embodiments can provide a system, machine, assembly, device, and/or manufacture and/or a method for activities that can relate to, a condensate trap that can comprise a float and a housing configured to receive condensate from a condensate-producing source and contain the float, the condensate trap configured to allow condensate to exit from the housing to a condensate drain.

Abstract: The present invention comprises a piston-flush toilet system that may use appreciably less water than commonly used toilets today. Such a piston-flush toilet system may comprise a bowl to accept waste and a chamber comprising a waste inlet connected to the bowl and a waste outlet connected to a sewer system or the like. A piston may be disposed within the chamber capable of sealing the waste inlet.

Abstract: A check ball valve assembly is used to regulate fluid flow from two separate fluid sources to a single fluid outlet. The assembly utilizes a single check ball alternating between two check ball seats in two separate fluid passages. A check ball guide is installed at the intersection of the separate fluid passages and deflects the check ball from the pressurized passage to the non-pressurized passage to prevent backflow into the fluid source.

Abstract: To provide a drain trap which makes it possible to easily clean the interior of a main body and accurately seal a junction between storage space and discharge space partitioned by a partition.

Abstract: The present invention provides a conduit trap, which can also operate as condensation recovery device when installed in a refrigeration system drainage line. The conduit trap is generally a hollow body defining a fluid path that includes an upper conduit 20, having a waste outlet 30 and optionally a condensation collection outlet 32. A lower conduit 22 extends downwardly from the upper conduit and has a narrowing that creates an inner sealing region for receiving a sealing means, such as float 50. Condensation can be directed from the refrigeration system through the conduit trap for recovery or for disposal without exposing the refrigeration drainage line and occupied space in which the refrigeration unit is located to sewer gasses even in dry weather when a gravity based, fluid-filled trap would fail.

Abstract: To provide a drain trap which can simplify maintenance operations by allowing effluent to flow to a discharge unit properly. The drain trap has a main body equipped with a communicating path which communicates a receiving unit and a discharge unit; a storage unit which, being installed in the communicating path, stores effluent received by the receiving unit; and a normally-closed check valve which, being installed in the communicating path, floats up to allow the effluent in the storage unit to flow to the discharge unit when the effluent reaches or exceeds a set amount, in which the storage unit is installed in such a way as to communicate with a part right under the normally-closed check valve, and the discharge unit is installed in the lowest part of a discharge-side communicating path so that no effluent will be stored in the discharge-side communicating path, which is that part of the communicating path which runs between the normally-closed check valve and the discharge unit.

Abstract: A urine collection apparatus includes an adaptable reservoir that is sized and shaped for conveniently and effectively being transported by a user. The reservoir includes a top portion including an intake valve in fluid communication with the reservoir. The intake valve is provided with an opening such that the male catheter can be selectively biased in fluid communication with an interior of the reservoir. Such an intake valve further has a threaded screw cap directly and adjustably coupled thereto for effectively allowing a selected quantity of air to continuously flow into and out of the reservoir wherein the quantity of air is commensurate with a quantity of fluid discharging and entering the reservoir respectively. The intake valve preferably has a monolithically formed conical tip that terminates proximal to the top portion such that the male catheter can effectively be supported at a fixed relationship with the reservoir during operating conditions.

Abstract: Sewerage inlet having a grating (3), a foliage-retaining basin (4) arranged below said grating (3) and a container provided with an outflow pipe (6) in which container a valve (10) controlled by a float is arranged upstream of the outflow pipe (6) and closes said outflow pipe (6) when the liquid in the container is lighter than water. For conveying the surface water away from streets, grounds and production yards a sewerage inlet is proposed, the container (5) thereof being subdivided by a removable separating floor (11) into an upper sedimentation chamber (12) and a lower collection chamber (13) into which the outflow inlet (8) connected with said outflow pipe (6) having a valve (10) and a float are arranged and whereby said sedimentation chamber (12) is connected via a soil pipe (14) with said collection chamber (13), the inlet opening (15) thereof being at a relatively large distance from said separating floor (11) and the outlet opening (16) being below said outflow pipe (6).