Milton W. Raupuk - Annapolis MD Edward M. Pennington - Chester MD
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
E03D 1300
US Classification:
4302
Abstract:
An automatic flushing apparatus for vacuum flow system urinals. A pressure ensing switch responds to the hydrostatic pressure resulting from one or two urinations and directs the system vacuum to both a water dispensing valve and the main discharge valve to automatically flush the system with a measured amount of water to prevent odors and soil drain scale buildup.