Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 8141179 | Water saver toilet with uniform water spot A toilet has a source (42) that applies a vacuum to a trapway (14) at the beginning of a flushing to immediately flush the toilet bowl (12). As a result, water from the water tunnel 26 and the toilet bowl top channel 28 flow into t... | 03/27/2012 |
| 7594282 | Western-style toilet facility A pipe work 10 provided with a cleaning control valve V1 is connected to a rim 3 of a toilet main body 1 in a hygienic western-style toilet facility provided with an ejector inhaling and discharging air from a water-discharge channel ... | 09/29/2009 |
| 7207073 | Vacuum assisted toilet A toilet is provided with a vacuum to assist in the flushing process. The vacuum is provided downstream between the toilet bowl and a waste outlet to draw the waste contents of the toilet bowl and out of the toilet bowl to the waste outlet under pressure. A controll... | 04/24/2007 |
| 7159251 | Water saver flush system A water saver toilet that produces a larger water spot (122) in the toilet bowl (12) and a better flushing, and that enables partial and full flushing. A trapway (14) that extends from the toilet bowl outlet to a drain (16), has upper and... | 01/09/2007 |
| 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 |
| 6131211 | Low profile vacuum toilet A vacuum assist toilet provides an efficient flushing in a tank of relatively low height. A container assembly (36) includes a largely sealed container (34) that lies within the tank (12) to hold water that is dispensed in a flushing so as to create a vac... | 10/17/2000 |
| 5926860 | Low profile vacuum toilet A vacuum assist toilet provides an efficient flushing in a tank of relatively low height. A container assembly (36) includes a largely sealed container (34) that lies within the tank (12) to hold water that is dispensed in a flushing so as to create a vac... | 07/27/1999 |
| 5694652 | Flushing system The invention provides a toilet flushing system comprising a water reservoir provided with a water inlet, and a water outlet for directing water into or towards an associated toilet bowl; a discharge chamber communicating with the discharge outlet of the ... | 12/09/1997 |
| 5579542 | Toilet with water saving, vacuum-assisted flushing apparatus and associated methods A tank type toilet has a water saving, vacuum-assisted flushing system that incorporates a diverter valve disposed in the tank portion of the toilet. During the flushing of the toilet, pressurized water is discharged from a ballcock valve assembly in the ... | 12/03/1996 |
| 5487193 | Enhanced operation toilet A water saver toilet is provided, of the type that applies a vacuum to the toilet bowl outlet to assist flushing, which effectively uses the vacuum and which can be of low height. The toilet bowl outlet includes upper and lower trap devices (44, 50 in FIG... | 01/30/1996 |
| 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 |
| 5404597 | Vacuum assist toilet trap A vacuum assisted toilet wherein a vacuum is applied between upper and lower traps (40,44 in FIG. 2) of a toilet bowl outlet during a flushing, wherein the lower trap is constructed to more reliably assure that an air passage (64) above a pool of water (5... | 04/11/1995 |
| 5386596 | Water saver toilet A water saver toilet is provided, of the type that applies a vacuum to the toilet bowl outlet to assist flushing, which effectively uses the vacuum. The toilet bowl outlet includes upper and lower trap devices (44, 50 in FIG. 2) connected by a trapway (46... | 02/07/1995 |
| 5142712 | Vacuum assisted toilet A vacuum assisted toilet is described wherein a vacuum is applied to a toilet bowl outlet during flushing, which avoids malfunctions that could allow sewer gas to escape, and which uses flushing water effectively. The toilet bowl outlet includes upper and... | 09/01/1992 |
