Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 6119724 | Two-way valve for regulating and measuring the flow rate of a fluid A Two-way valve for regulating and measuring the flow rate of a fluid through a header (1) and a branched duct (2,2a) inside the header itself. The valve (10a, 10, 11, 11c) which shuts off the aperture (2b) of the branched duct (2) is internally hollow an... | 09/19/2000 |
| 4998708 | Butterfly valve with a sealing element of elastomeric material with an internal metal reinforcement Butterfly valve with a sealing element in elastomeric material with an internal metal reinforcement, made of a substantially tubular outer valve body, with flow pipe connections for fluids at its extremities, in whcih there is a seal in elastomeric materi... | 03/12/1991 |
| 4485449 | Method and apparatus for the direct measurement of thermal energy transferred by a fluid medium In the direct measurement of thermal energy transferred in heating or air conditioning installations, the difference between voltages from outflow and return flow temperature sensors is integrated during a first timing period and then discharged during a ... | 11/27/1984 |
| 4437771 | Method and apparatus for indirect measurement of thermal energy The described method and apparatus are relative to the indirect measurement of thermal energy delivered to numerous heating elements, part of one or several zones, for instance all the radiators in an apartment or all the radiant panels of single family q... | 03/20/1984 |
