Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7168109 | Self-priming siphon tube for use with a toilet tank and bowl for maintaining a steady trickle flow of water through a supplying and unheated service line associated with the tank and bowl and method for installing the same A self-priming siphon tube for maintaining a trickle flow of fluid through a toilet tank reservoir and a toilet bowl. A water supply line is in fluid communication with the tank by virtue of a ball cock valve, the tank reservoir fluidly interconnects with the bowl b... | 01/30/2007 |
| 6651266 | Flushing method of toilet, toilet used for carrying out said method and components thereof A toilet flushing method causes high-pressure flush water, provided by a flow pipe, to spray along the baffle in the bottom of the trap of a toilet bowl and causes the flush water used for washing the toilet bowl to spray into the toilet bowl. The high-pr... | 11/25/2003 |
| 5706529 | Water closet A water closet having a trap drainage exit in a wall above a floor, in which at the time of flushing, a vent space is partitioned in a wall-like manner by water falling from a weir. A rise in the water level of a sump portion of the trap results, and air ... | 01/13/1998 |
| 5426794 | Vacuum assisted toilet with controlled vacuum A vacuum assisted toilet is described, of the type wherein the toilet bowl outlet has a lower trap that is open to the passage of air therethrough except during each flushing when a vacuum is applied, which uses the vacuum more effectively. A vacuum sourc... | 06/27/1995 |
| 5353444 | Primer activated wet leg-control vented low level syphon flush for toilets A toilet flushing apparatus characterized by a closed primer tank and an inherently leakproof syphon discharge through a toilet flush tube, also characterized by a pre-primed syphon, wherein the discharge leg is filled to the syphon bridge and the suction... | 10/11/1994 |
| 5243714 | Primer activated syphon flusher for toilets A toilet flushing apparatus characterized by an inherently leakproof syphon discharge through a toilet flush tube, characterized by a pre-primed syphon wherein both the suction leg and the discharge leg are filled with supply and primer tank water, and wi... | 09/14/1993 |
| 5230102 | Primer activated syphon flusher for toilets A toilet flushing apparatus characterized by an inherently leakproof syphon discharge through a toilet flush tube, control being of two forms (1) a pre-primed syphon wherein both the suction leg and the discharge leg are filled with water, and (2) a jet p... | 07/27/1993 |
| 5228145 | Primer activated syphon flusher for toilets A toilet flushing apparatus characterized by an inherently leakproof syphon discharge through a toilet flush tube, characterized by a jet primed syphon wherein the suction leg is filled with supply tank water and the discharge leg is dry and with a floati... | 07/20/1993 |
| 5170515 | Water closet A water closet having a trap drainage exit in a wall above a floor, in which at the time of flushing, a vent space is partitioned in a wall-like manner by water falling from a weir. A rise in the water level of a sump portion of the trap results, and air ... | 12/15/1992 |
| 4631760 | Automatic flushing system An automatic flushing system for use with toilets or urinals which includes a tank having a siphon outlet and a hollow float which has a water access port and an air access port. There is also provided support means for supporting the float for generally ... | 12/30/1986 |
| 4312083 | Water closet flush valve A flush valve for a toilet having a tank and a bowl including a valve housing connected to a source of water, a valve stem operatively connected to a float and a piston operatively connected through a cam to a flush lever, the valve stem and piston movabl... | 01/26/1982 |
| 4183108 | Flush toilet system A water reservoir tank storing a primary body of water for release to a toilet bowl for flushing is associated with a pressure tank that stores a minor amount of water at a pressure considerably higher than that of the primary body and is discharged durin... | 01/15/1980 |
| 4142262 | Flush toilet system A water reservoir tank storing a primary body of water for release to a toilet bowl for flushing houses a pressure tank that stores a minor amount of water at a pressure considerably higher than that of the primary body and is discharged during flushing t... | 03/06/1979 |
| 4114208 | Water closet flush valve Disclosed herein is a ballcock type flush valve that has all moving parts above the water line of the tank, thereby eliminating corrosion. The valve configuration is such that it is designed to shut-off the flow of water, thereby providing a positive shut... | 09/19/1978 |
