Abstract: A dilution control device and method of operating the same. The dilution control device can include a structure for dispensing concentrate and diluent fluid in a desired dilution ratio utilizing volumetric dosing. In some embodiments, diluent fluid drives a wheel or compresses a pliable concentrate bag in order to dispense concentrate in the desired ratio with the diluent fluid. In some embodiments, one or more floats can be used to drive a pump or actuate a valve to dispense concentrate at a particular rate proportional with the flow rate of the diluent fluid. In some embodiments, a rocker is responsive to the flow of diluent fluid to pump concentrate. In some embodiments, the dilution control device can be operable to automatically modulate the dispense rate of concentrate when the diluent fluid flow rate is varied in order to maintain a predetermined dilution ratio.

Abstract: A dilution control device and method of operating the same. The dilution control device can include a structure for dispensing concentrate and diluent fluid in a desired dilution ratio utilizing volumetric dosing. In some embodiments, diluent fluid drives a wheel or compresses a pliable concentrate bag in order to dispense concentrate in the desired ratio with the diluent fluid. In some embodiments, one or more floats can be used to drive a pump or actuate a valve to dispense concentrate at a particular rate proportional with the flow rate of the diluent fluid. In some embodiments, a rocker is responsive to the flow of diluent fluid to pump concentrate. In some embodiments, the dilution control device can be operable to automatically modulate the dispense rate of concentrate when the diluent fluid flow rate is varied in order to maintain a predetermined dilution ratio.

Abstract: A dilution control device and method of operating the same. The dilution control device can include a structure for dispensing concentrate and diluent fluid in a desired dilution ratio utilizing volumetric dosing. In some embodiments, diluent fluid drives a wheel or compresses a pliable concentrate bag in order to dispense concentrate in the desired ratio with the diluent fluid. In some embodiments, one or more floats can be used to drive a pump or actuate a valve to dispense concentrate at a particular rate proportional with the flow rate of the diluent fluid. In some embodiments, a rocker is responsive to the flow of diluent fluid to pump concentrate. In some embodiments, the dilution control device can be operable to automatically modulate the dispense rate of concentrate when the diluent fluid flow rate is varied in order to maintain a predetermined dilution ratio.

Abstract: A device (20) for cleaning surfaces is provided utilizing a web (94) of a tackified sheet material movably secured between rollers (56, 58) on the device (20) that enable the web (94) to be moved over the surface in opposite directions. The device (20) includes a supply roller (56) and a take-up roller (58) secured to opposed ends of the web (94) of adhesive sheet material, with at least one roller (56, 58) including a biasing mechanism (82) disposed within the roller (56, 58). The web (94) can be engaged with the surface by passing over a number of idler rollers (98) positioned between the supply roller (56) and take-up roller (58). The biasing mechanism (82) is designed to bias the movement of the web (94) onto the take-up roller (58), such that the mechanism (82) can be selectively operated to advance the web (94) from the supply roller (56) to the take-up roller (58) to expose a clean section of the adhesive sheet material (94).

Abstract: A diffusion device comprises a bottom portion having a bottom cover disposed thereon. The device further includes a top portion having a top cover disposed atop the bottom portion and a pump assembly disposed between the top cover and the bottom cover. First, second, and third arm portions extend from the pump assembly, wherein the first, second, and third arm portions include first, second, and third piezoelectric devices, respectively, attached thereto.