Bruce D Flagge

41233581, Oct 31, 1978

Jul 25, 1977

5/819030

Bruce Flagge - Yorktown VA

C02C 102

210104

Automatic liquid volume compensation apparatus is disclosed having particular application to septic systems. The apparatus limits septic tank air volume to optimize bacterial decomposition of wastes and controls the flow rate from the inlet piping through the tank to the drain field to limit passage of unprocessed fluid and prevent backups in the inlet piping. In the first of two embodiments, a bladder within a settling tank inflates or deflates to accommodate changes in liquid volume while maintaining tank level within desired limits. In the second embodiment, an auxiliary tank stores excess liquid which is returned to the primary settling tank when settling tank liquid level has declined to a desired height.

41716450, Oct 23, 1979

Jul 26, 1978

5/928129

Robert Miserentino - Hampton VA
Bruce Flagge - Yorktown VA

The United States of America as represented by the Administrator, of The
National Aeronautics and Space Administration - Washington DC

G01H 900

73655

A transducer that combines a noncontacting displacement probe with a self-contained target. The target is held in position against a vibrating surface by a housing which also supports the noncontacting probe. The target vibrates with the surface and the probe senses the vibrations of the target.