A leak-proof water valve includes a water inner tube, an outer tube group and a buoyant housing. When the sealing plug of the toilet tank is leaking, leak-proof structure of a buoyant housing for automatically detection is provided to stop the water inlet valve supplying water, so that a user could be aware of the leaking situation to thereby avoid the waste of water resources.

A siphon float system comprises a siphon pipe with which the intake is supported by its connection to a float with a batch reactor wherein the float maintains a constant siphon intake depth below the fluid surface of the batch reactor. One or more valves prevent reverse flow within the siphon pipe and control flow as desired based upon fluid levels within a batch reactor. One or more siphons connect to an outfall control structure designed to permanently keep the siphon pipe full of fluid and able to actively siphon fluid as desired.

A siphon float system comprises a siphon pipe with which the intake is supported by its connection to a float with a batch reactor wherein the float maintains a constant siphon intake depth below the fluid surface of the batch reactor. One or more valves prevent reverse flow within the siphon pipe and control flow as desired based upon fluid levels within a batch reactor. One or more siphons connect to an outfall control structure designed to permanently keep the siphon pipe full of fluid and able to actively siphon fluid as desired.

An appliance includes an appliance unit having a housing with the housing having steam emission holes, a heater in the housing, a primary water tank in the housing, and a cradle that is removably connectable to the appliance unit. The cradle has a secondary water tank that can communicate with the primary water tank when the appliance unit is connected to the cradle.

An appliance includes an appliance unit having a housing with the housing having steam emission holes, a heater in the housing, a primary water tank in the housing, and a cradle that is removably connectable to the appliance unit. The cradle has a secondary water tank that can communicate with the primary water tank when the appliance unit is connected to the cradle.

In a fuel supply device including a regulator and float-type level sensor, a fitting tube is formed integrally with an upper housing, a fuel pump being retained between the upper and lower housings. An outer periphery of a base part of the regulator is fitted into the tube. A regulator retaining member is formed as a separate member from the upper housing and retains the regulator in cooperation with the tube. The tube and the retaining member are joined via a snap-fit join part provided on fitting parts therebetween. The snap-fit join part is formed by engaging a projecting portion or a recess part, formed on an elastic piece provided on one of the fitting parts between the retaining member and the tube, with the recess part or the projecting portion formed on the other fitting part. A sensor support arm is molded as a unit with the retaining member.

In a fuel supply device including a regulator and float-type level sensor, a fitting tube is formed integrally with an upper housing, a fuel pump being retained between the upper and lower housings. An outer periphery of a base part of the regulator is fitted into the tube. A regulator retaining member is formed as a separate member from the upper housing and retains the regulator in cooperation with the tube. The tube and the retaining member are joined via a snap-fit join part provided on fitting parts therebetween. The snap-fit join part is formed by engaging a projecting portion or a recess part, formed on an elastic piece provided on one of the fitting parts between the retaining member and the tube, with the recess part or the projecting portion formed on the other fitting part. A sensor support arm is molded as a unit with the retaining member.

A toilet seat assembly is provided including a seat base with a housing and a seat lid, and further including a washing apparatus, a drying apparatus, and a spray canister device positioned in the housing. A controller having a user interface is configured to communicate with a control unit of the toilet seat assembly to control operation of the components of the toilet seat assembly. So configured, a user may operate the toilet seat assembly to clean the user's perineal region via the washing apparatus, dry the user's perineal region via the drying apparatus, and spray the user's perineal region with one or more liquid products via the spray canister device.

A toilet seat assembly is provided including a seat base with a housing and a seat lid, and further including a washing apparatus, a drying apparatus, and a spray canister device positioned in the housing. A controller having a user interface is configured to communicate with a control unit of the toilet seat assembly to control operation of the components of the toilet seat assembly. So configured, a user may operate the toilet seat assembly to clean the user's perineal region via the washing apparatus, dry the user's perineal region via the drying apparatus, and spray the user's perineal region with one or more liquid products via the spray canister device.

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.