Abstract: A hand grip structure of the pistol nozzle comprises an upper grip member, a lower grip member, a center tube, a control knob, and a protective cover. The center tube is enclosed by the upper grip member and the lower grip member and is provided with a channel, a water-admitting port and a water-discharging port. The channel is provided in the midsegment with a control cell in which the control knob is disposed such that a push button of the control knob is jutted out of the upper grip member. The control knob is provided with an arresting block. The protective cover is fastened with the lower grip member to soothe the hand. The rate of water flow in the channel is regulated by the control knob.

Abstract: The present invention relates to a chemical sprayer that includes a sprayer head assembly and a container. The container defines a cavity for storing a chemical to be sprayed. The sprayer head assembly includes a chemical passage, a carrier fluid passage, a vent passage, a valve chamber and a valve. The chemical passage is communication with the cavity. The carrier fluid passage is in communication with a carrier fluid source. Both the carrier fluid and chemical passages are in communication with the valve chamber. The valve is moveably positioned within the valve chamber and defines at least partially a first passage and a second passage. The first passage is configured so as to be in communication with the chemical passage when the valve is in an open position. The second passage is configured so as to be in communication with the carrier fluid passage when the valve is in the open position.

Abstract: A shower head includes a housing supporting a low speed rotary valve member driven by a high speed rotary turbine to produce a variable flow rate. The turbine also produces pulsations of water streams discharged from the housing and is shifted axially to produce continuous water streams. A manually actuated control valve and passages with pressure responsive flow control washers provide for selecting different ranges of variable flow or for bypassing the variable flow.

Abstract: An eyewash apparatus is disclosed that can be utilized on either side of an associated bowl or sink. Piping extending from spray heads to a housing overlaying a valve can be rotated into position over the sink or bowl. Rotation of the piping initiates or shuts off water flow to eyewash outlets at one end of the piping. The amount of rotation is limited by interaction of a pin traveling in an arcuate slot formed in that part of the apparatus secured to a surface adjacent the sink or bowl. The apparatus can be used on opposite sides of the sink or bowl without a structural change to any components of the apparatus.

Abstract: The purpose of the invention is to protect an instrumented firefighter's fire hose nozzle from shock and undesirable environmental pollutant penetration. The invention provides for doing this through the use of a rugged cover on the equipment as well as soft equipment mounts. The cover provides the instrumentation with protection from impact as well as protection from contamination by environmental pollutants. On the inside of the cover, the shock sensitive equipment is seated on an island that is mounted by one or more soft vertical posts, which protect this equipment from shock.

Abstract: A microprocessor-operated valve is held in a showerhead to shut off flow of water if a leak detector measures any water leakage. The valve is mounted in a conduit in the showerhead and operated to shut off water flow if the water leak detector senses leakage from the showerhead. An electric motor is held in the showerhead and actuated to drive a gear train to close the normally-open valve and shut off water flow through the conduit.

Abstract: The combination of a case enclosed sprinkler and shut-off valve having the dual function of shutting off the flow of water to a case enclosed sprinkler so that case enclosed sprinkler can be removed from the case enclosed sprinkler system or zone for replacement, repair, maintenance and the like and the insertion and removal of the case enclosed sprinkler operates to open and close the shut-off valve. The shut-off valve has infinite settings so that it can be utilized as a metering valve to limit the flow of water entering the case enclosed sprinkler. In another embodiment, an adapter mechanism can be utilized in combination with the shut-off valve to obtain water from the system when desired.

Abstract: A hose sprayer assembly in accordance with the present invention includes a trigger body which is rotatably mounted within a housing. The housing is formed with an inlet orifice, an outlet aperture and an aspiration orifice, and further includes a deflector plate which is fixed to the outer surface of the housing proximate the outlet aperture. The trigger body includes a inlet port, an outlet port in fluid communication with the inlet port, and an aspiration port in fluid communication with the outlet port. Selective alignment of the trigger body places the inlet port and outlet port in fluid communication with the respective inlet orifice and outlet aperture of the housing. This yields a water only stream out the housing outlet aperture when water is forced through the assembly. Similarly, the body can be aligned to place the aspiration port in fluid communication with the aspiration orifice of the housing.

Abstract: A multifunction car wash gun including a car wash gun body, a connector, an adjustment mount, a sleeve, a setting sleeve, and a nozzle. The connector is fastened to the car wash gun body and has a water passage formed that is in continuity with the water passage in the car wash gun body. A soap solution output hole of the water passage is situated in the lower receptacle. The adjustment mount is installed at the bottom end of the connector. The sleeve is filled with a soap solution and installed into the lower receptacle. A liquid wax chamber is attached between the connector and the car wash gun body. A user can directly rotate the adjustment mount to selectively control water flow stoppage, water-only output, a combination water and soap solution output, and a combination water and liquid wax output.

Abstract: A firefighting monitor having an acceleration sensitive shut off valve that responds to acceleration of the monitor to reduce water flow through the monitor. The acceleration sensitive shut off valve is self-contained and requires no contact with an external surface or device. The valve closing speed may be modulated by a dampener device that slows the rate at which the valve closes to avoid damage from water hammer.

Abstract: A chemical aspiration sprayer head includes a carrier channel having an inlet, an outlet through which the carrier fluid exits, and an expansion chamber in between the inlet and outlet, a chemical supply channel in flow communication with the expansion chamber of the carrier channel through an aspiration opening, and a bleed line extending from the chemical supply channel between the aspiration opening and the liquid chemical, the bleed line connecting the chemical supply channel in flow communication to ambient air. A control valve assembly is seated in the sprayer head to simultaneously engage the carrier channel and the bleed line and with the carrier channel open, selectively open and close the bleed line to selectively permit ambient air to be drawn into the chemical supply channel in response to the aspiration flow produced by the flow of carrier fluid.

Abstract: A paint sprayer having an on/off switch, a bypass valve and a pressure adjusting valve has a single manually rotatable control that operates the switch, the bypass valve and the pressure adjusting valve.

Abstract: A shower head having a plurality of spray modes and unique controls to allow the selection of the desired mode. The shower head includes several unique features to allow the inclusion of several different spray modes, such as wide spray, medium spray, center spray, champagne spray, high speed pulsating spray, low speed pulsating spray, and mist. A waterfall mode can be implemented. The shower head includes a flow control valve that controls the pressure of the water flow, and acts to divert water to a mode selector or to a separate spray mode, such as the mist mode. The flow control valve diverts water between the mode selector and the separate spray mode. It also allows a combination of the modes controlled by the mode selector and the separate spray mode. The shower head also includes a mode selector. The mode selector transfers or routes fluids from the flow control valve to any number of individual or a combination of flow spray mode outlets.

Abstract: Shower heads are disclosed providing for varying types of spray. One spray head provides three different spray patterns, with two of the patterns having pulsing impellers which can pulse at different speeds from each other.

Abstract: A water sprayer long tube and water pipe connector, having formed along a bottom section internal threads that are followed in respective order from its water inlet end by a first polytetrafluoroethylene water sealing ring, a ball valve, and a second polytetrafluoroethylene water sealing ring for coupling the two components. The opening of the water outlet end is of a smaller inner diameter than that of the opening at the water inlet end and a water sealing ring is ensconced along the inner diameter edge of the water outlet end. A flange formed at the bottom end of the long tube in the water inlet end of the connector is secured and constrained inside the connector, with the constraining of the long tube flange of the water sprayer enabling it to become assembled with the connector into a single structural entity that cannot be disconnected.

Abstract: An injector comprises an injection nozzle 1 having a nozzle hole 3, a valve body 2 for controlling a fuel flow through the nozzle hole 3, and changing means 6, 7, 10, 11, 12, 13, 20 for changing a shape of fuel spray, the fuel spray being formed by the fuel which flows through the nozzle hole. The injector includes rotation preventing means for preventing the valve body 2 from rotating with respect to the injection nozzle 1 around a center axis of the valve body 2. The injector includes angular displacement controlling means for controlling an angular displacement of the valve body 2 with respect to the injection nozzle 1. A shape of a tip of the valve body 2 is circumferencially non-uniform.

Abstract: A spraying system having a control valve with an inlet port for connection to a liquid supply, a discharge port for connection to a spray nozzle, and a return port for connection to the liquid supply. The control valve includes a valve member which has a liquid flow passageway and is movable between an open position in which the liquid flow passageway communicates between the inlet and discharge ports for permitting the direction of pressurized liquid to the spray nozzle and a second position which prevents the flow of pressurized liquid to the discharge port. The spray nozzle has an associated pressure responsive check valve for preventing the flow of liquid to the spray nozzle, and hence for preventing drippage, upon movement of the control valve member to the off position.