Abstract: Systems and methods are provided for pasteurizing milk or other fluids, and for cleaning and disinfecting processing passageways prior to and after the milk processing. The disclosed pasteurization systems and methods have very low impact on the characteristics of raw, unpasteurized milk (e.g., texture, flavor, and/or nutritional value). For example, some systems and methods utilize a pump that operates at a very low flow rate (e.g., about 1 gallon per minute (GPM)) to prevent mechanical adulteration of the raw milk. Disclosed systems and methods for cleaning and disinfecting the fluid passageways also utilize a low-flow rate, and can use the same low flow pump that is utilized during pasteurization. A pressure pulser allows pressure to build up within the fluid passageways despite the low flow, and then releases the pressure to purge air from the passageways and to cause their interior surfaces to contact the cleaning fluid.

Abstract: A cable dispensing and retrieval system, which may be used to dispense and retrieve communication cable for a remote controlled vehicle, dispenses a length of cable between a release point and the ground in a generally downward direction such that at least a portion of the length of cable between the release point and the ground is permitted to move along a first axis that is parallel to the ground and controls pay out and/or retrieval of the cable to maintain a point of the cable located between the release point and the ground at a predetermined point along the first axis.