Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.

Abstract: Embodiments of the invention provide a nozzle body including a main body, a turret, a valve assembly, and a feed spigot. The feed spigot can be in fluid communication with a valve chamber via a first feed point and a second feed point. The use of multiple feed points between the feed spigot and the valve chamber can result in increased flow capacity.

Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.

Abstract: Embodiments of the invention provide a spray head including a housing having a facetted front face with a plurality of intersecting surfaces. The spray head can include a nozzle in each one of the plurality of intersecting surfaces. The nozzle can be positioned within a first recess of the housing so that an outer end of the nozzle does not extend past an outer surface of the housing. The nozzle can generate and dispense a fog-like mist. The spray head can include a cover that substantially prevents an orifice of the nozzle from becoming blocked with debris. The cover can be installed within a second recess of the nozzle so that the cover is substantially flush with the outer surface of the housing.

Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.

Abstract: Embodiments of the invention provide a method of detecting a fault condition in a motor of a pump. The method includes sensing a first current value and a speed of the motor, attempting a recovery operation if the first current value is greater than a current threshold and if the speed of the motor is less than a motor speed low threshold, and sensing a second current value during the recovery operation and shutting down a drive to the motor if the second current value is also greater than the current threshold. The method also includes performing the recovery operation for a time period if the second current value is less than the current threshold and attempting to operate the motor in a normal mode after the time period has elapsed.

Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.

Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.

Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.

Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.

Abstract: A fire fighting vehicle of the type having a system for introducing a liquid foam concentrate into a water delivery hose so that the percentage concentration of foamant in the mixture remains at a predetermined set value irrespective of variations in the water flow rate. The improvement provided involves the addition of an AutoStart feature whereby upon application of power to the foam control system, the system comes up in an on mode without the need for human intervention.

Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.

Abstract: Spray nozzle apparatus and method. The apparatus can include a body, a spray orifice, a filter, and an insert. The body can have a spray outlet portion. The spray outlet portion can terminate in a spherical dome. The spray orifice can be included in the spray outlet portion and positioned before the spherical dome in a flow path. The spray orifice can be substantially V-shaped. The insert can be positioned at least partially in the spray outlet portion and can include an entry shaft having a substantially rectangular cross section and at least one projection.

Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.

Abstract: Some embodiments of the present invention provide a pump including a pump housing having an inlet adapted to fluidly couple with an inlet conduit, and an outlet adapted to fluidly couple with an outlet conduit. The pump also includes a pump shaft rotatably supported in the pump housing and a plurality of impellers coupled for rotation with the pump shaft. The pump further includes a motor removably coupled to the pump housing. The motor has an output shaft drivably coupled to the pump shaft. The pump also includes a spacer positioned between the plurality of impellers and the motor. The spacer includes at least one aperture to access and de-couple the output shaft and the pump shaft. The motor, spacer, pump shaft, and the plurality of impellers are removable from the pump housing as a single unit without disconnecting the inlet conduit and the outlet conduit from the pump housing.

Abstract: Some embodiments of the present invention provide a modular fluid treatment assembly and method in which modules of the system each have a head that can be connected to one or more heads (of one or more other modules) in different configurations. In some embodiments, the relationship between a cartridge of the module and its corresponding head prevents fluid from entering between the cartridge and an external shell of the module. Also, some embodiments provide a module having a head with substantially concentric inlet and outlet ports in fluid communication with a cartridge coupled to the head.

Abstract: A submersible motor unit is used to drive a pump and is submerged with the pump in liquid (water). The motor unit includes a tubular housing member and a tubular inner member which is enclosed by and disposed in a coaxial relationship with the tubular housing member. A stator is disposed in a stator chamber formed between the tubular inner member and the tubular housing member. A rotor is disposed in a rotor chamber disposed within the inner member. End walls close opposite ends of the tubular housing member and the tubular inner member. An annular capacitor is disposed in the stator chamber in an axially spaced apart relationship with the stator. The capacitor extends around the rotor chamber. A body of potting compound is disposed in the stator chamber and at least partially encloses the stator and the capacitor.