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 |
| 5563389 | High-voltage power switch High-voltage power switch with an arc contact and a spatially separated rated current contact, with the movable part of the rated current contact taking the form of an external hollow cylinder for delimiting a storage space for a pressurized quenching gas... | 10/08/1996 |
| 5151674 | Power circuit breaker An automatic cutout or a power circuit breaker with high current-limiting capacity contains no conductor connections of any kind, has only two weld or solder joints and requires no adjustment. This automatic cutout can be assembled progressively and purel... | 09/29/1992 |
| 4207447 | Gas interrupter having narrow and wide arc passages In a gas interrupter, high pressure gas such as air and SF6 is puffed to an arc so as to perform the extinction of the arc and a part of the passage of the arc is limited to narrow space and the arc voltage is raised at the narrow part and the ... | 06/10/1980 |
| 4205209 | Articulated contact finger An articulated contact finger of very high voltage gasblast circuit-breaker. It is characterized in that the pin on which the finger is articulated is disposed between the contact piece and a spring which provides the force required at the contact point, ... | 05/27/1980 |
| 4016384 | Operating mechanism and position indicator for a circuit interrupter An improved circuit-breaker position-indicator is provided for a gas-type circuit-interrupter in which the circuit-breaker structure is enclosed within an outer pressurized casing at a different pressure than the gas pressure interiorly of the circuit-bre... | 04/05/1977 |
| 3965318 | Contact arrangement for an electric pressure gas power circuit breaker A contact arrangement for an electric pressure-gas circuit breaker for interrupting an electric current includes two stationary contact pieces disposed so as to conjointly define a gap therebetween. A follower contact is arranged on one of the contact pie... | 06/22/1976 |
