The disclosure is an improved Random Access Memory (RAM) integrated circuit chip. More specifically, enhancement - depletion mode field effect transistor technology is employed to provide a solid state memory having improved "reading" and "writing" capability. A pair of N-channel depletion mode devices are used to initialize the bit lines before the start of the next read or write cycle. These devices are switched to a high conductive state resulting in a rapid initialization of the bit lines. A...

An improved method and apparatus for aeration of septic tanks and the like. Because of the interrelationship of the rotating impeller, an air plate and the horsepower of the unit in comparison with the volumetric size of the sludge tank, the unit disperses extremely small reduced pressure microbubbles adjacent the area of the impeller. These reduced pressure microbubbles are thereafter dispersed throughout the wastewater by Brownian movement without agitating the sludge. As a result, there is su...

An improved method and apparatus for aeration of septic tanks and the like. Because of the interrelationship of the rotating impeller, an air plate and the horsepower of the unit in comparison with the volumetric size of the sludge tank, the unit disperses extremely small reduced pressure microbubbles adjacent the area of the impeller. These reduced pressure microbubbles are thereafter dispersed throughout the wastewater by Brownian movement without agitating the sludge. As a result, there is su...