Gas distribution assemblies are described including an annular body, an upper plate, and a lower plate. The upper plate may define a first plurality of apertures, and the lower plate may define a second and third plurality of apertures. The upper and lower plates may be coupled with one another and the annular body such that the first and second apertures produce channels through the gas distribution assemblies, and a volume is defined between the upper and lower plates.

Disclosed herein is a pool light assembly including cooling for the illuminating structure. The assembly includes a water inlet housing having a portion on the dry side and a portion immersed in the pool water. An assembly having sealing structure creates a leak proof connection with the pool wall. The submerged portion of the assembly includes a base. The base has an exterior exposed to the pool water and an enclosed interior including the illuminating structure. A notch is provided in the exterior of the base and extends into the interior for allowing pool water in the proximity of the illuminating structure. The assembly includes sealing structure for preventing water from entering electrically active elements, while allowing pool water to act as a cooling element. A retaining member locks and encourages waterproof sealing of the electrically active elements. Each of the elements is provided with structure as necessary to facilitate the free flow of water through the housing.

Disclosed herein is a pool light assembly including cooling for the illuminating structure. The assembly includes a water inlet housing having a portion on the dry side and a portion immersed in the pool water. An assembly having sealing structure creates a leak proof connection with the pool wall. The submerged portion of the assembly includes a base. The base has an exterior exposed to the pool water and an enclosed interior including the illuminating structure. A notch is provided in the exterior of the base and extends into the interior for allowing pool water in the proximity of the illuminating structure. The assembly includes sealing structure for preventing water from entering electrically active elements, while allowing pool water to act as a cooling element. A retaining member locks and encourages waterproof sealing of the electrically active elements. Each of the elements is provided with structure as necessary to facilitate the free flow of water through the housing.

Provided is a nozzle for jetting liquid in an accurate direction with respect to a nozzle mounting hole. The nozzle is mounted to a nozzle holder having a nozzle mounting hole having a right cylindrical shape, an outlet port connected to the nozzle mounting hole, and a mounting internal thread. The nozzle includes: a mounting external thread disposed at a first end, and is a parallel thread that fits with the mounting internal thread; a cylindrical portion that fits in the nozzle mounting hole; a first introducing passage disposed coaxially with the cylindrical portion; a cylindrical choke portion disposed coaxially with the cylindrical portion, and a conical portion connecting the first introducing passage to the cylindrical choke portion.

An aircraft windshield wiper system includes a wiper arm, a wiper blade coupled to a first end of the wiper arm, and an output shaft coupled to a second end of the wiper arm. The wiper blade includes a fluid dispensing system including nozzles, a fluid control unit, fluid lines, fluid source, and a user interface. The wiper blade with the fluid dispensing system is configured to dispense a variety of fluids directly from the wiper blade onto the windshield of an aircraft.

A multi-positional valve is used to control the destination of gas flows from multiple gas sources. In one valve position the gases flow to an isolated vacuum system where the flow rate and mixture can be adjusted prior to introduction into a sample vacuum chamber. In another valve position the pre-mixed gases flow from the isolated vacuum chamber and through a needle into the sample vacuum chamber.

Individual heater device (1) that generates a microclimate between the skin and the layer of clothing of a user such that the body is warmed and the clothing dried, which comprises an interior chamber (A), a generator unit (B) that produces warm air that comprises a motor (C) that actuates a turbine (D) that generates air, the flow of air from this turbine being directed towards an electrical resistance element (E), and it further comprises a casing (120) that contains said generator unit (B), an internal chamber (G) for distribution of the warm air coming from the generator unit (B) and it comprises a plurality of outlet ducts (130) for the warm air towards the exterior. Collective heater device (100) that comprises a gas-powered industrial heater (F), a motor (C) that actuates a turbine (D) that generates air, the flow of air from the turbine being directed towards a heat exchanger (E), wherein the collective heater device further comprises a casing (10′) that contains an internal chamber (20′) for distribution of the warm air coming from an industrial heater (F) and it comprises at least two assemblies (300) that comprise outlet ducts (30′) for the warm air towards the exterior.

A gutter cleaning system is disclosed which has an air line for receiving air, a first section having a first end and a second end, the first end adapted to being connected to the air line, the first section having an aperture formed therein, and a head assembly connected to the second end of the first section, the head assembly having an arm portion having an aperture.

In some embodiments, a fluid diverter device may include a diverter body having a body surface coupled to a first end and to an opposing a second end. A diverter conduit may be centrally positioned within the diverter body, and the conduit may extend between the first end and second end. A coupler plug may be disposed on the second end, and an accessory socket may be disposed on the first end. The coupler plug may have c coupler conduit in fluid communication with the diverter conduit. The device may further comprise a bend which may be formed in the diverter body, and the bend may be configured to angle the first end towards the second end. In further embodiments, the bend may comprise a bend angle, and the bend angle may be between 35 degrees and 49 degrees and more preferably between 40 and 44 degrees.

A drain clearing air gun includes a housing defining a main body, a handle positioned on a first end of the main body, and a nose positioned on a second end of the main body. A tank is at least partially positioned within the housing and includes a chamber for receiving pressurized air. A motor is positioned within a main body of the housing, and a pump is positioned within the main body of the housing and operatively coupled to the motor. The pump is driven by the motor to pump air into the tank. A pressure gauge is supported by the housing and includes an automatic shutoff feature. The pressure gauge is in fluid communication with the tank. When a predetermined pressure within the tank is reached the automatic shutoff feature is activated to stop the motor.