AUTOMATIC SWIMMING POOL CLEANERS WITH SHAPED FLOATS AND WATER-TEMPERATURE OR-PRESSURE INDICATORS AND WATER-CIRCULATION SYSTEMS INCORPORATING SUCH INDICATORS

摘要

Mobile apparatus, typically in the form of automatic swimming pool cleaners(14) , capable of indicating temperatures (or pressures) of the pool water in which they are deployed are discussed. The indication may, but need not necessarily, occur through change in color of one of more components of the cleaners. Some versions may have floats (10) adapted to provide this col or change. These or other versions may include floats (10) that are not spheric al in shape as well. Alternatively, temperature (or pressure) indication may be provided by other aspects of a water-circulation system.