Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 7147786 | Method and apparatus for purifying-water The invention relates to a method for purifying water by dissolving one or more soluble metal salts in the water to provide corresponding metal ions, by dissolving hypohalite into the water, and by regulating the residence time, and thus hypohalite concentration in ... | 12/12/2006 |
| 7141224 | Vessels and covers Vessels, or housings, and covers therefor are detailed herein. Loads and load-bearing surfaces exist principally at the periphery of the covers, by contrast with centralized loading utilized in other designs. In some versions of the vessels, a cover is sandwiched, a... | 11/28/2006 |
| 7108293 | Swivel connector for a pipeline A swivel connector (10) for a pipeline includes first and second connecting members (12, 14) connectable in the pipeline. The connecting members (12, 14) have round, telescopic pipe sections (32, 42), an annular seal (36, 46) betwe... | 09/19/2006 |
| D527662 | Electrode housing and indicator | 09/05/2006 |
| 7039980 | Pool cleaner A push side pool cleaner (1) has a spheroidal overall shape, within this shape two outer segments (9, 10) serve as wheels and a central zone (8) carries a suction passage (33) and a debris collector (32) also located entirely withi... | 05/09/2006 |
| D516668 | Chlorine tablet | 03/07/2006 |
| D516667 | LM3 chlorinator | 03/07/2006 |
| 6982040 | Method and apparatus for purifying water The invention relates to a method for purifying water by dissolving one or more soluble metal salts in the water to provide corresponding metal ions, by dissolving hypohalite into the water, and by regulating the residence time, and thus hypohalite concentration in ... | 01/03/2006 |
| 6979400 | Automatic swimming pool cleaners with shaped floats and water-temperature or -pressure indicators and water-circulation systems incorporating such indicators Mobile apparatus, typically in the form of automatic swimming pool cleaners, 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 ... | 12/27/2005 |
| D506804 | Pool chemical dispenser | 06/28/2005 |
| D503771 | Chlorine tablet | 04/05/2005 |
| D503770 | Water purifier | 04/05/2005 |
| 6851446 | Adaptor especially for use in connection with swimming pool return lines Adaptor assemblies are detailed. Preferably for connecting automatic pool cleaning apparatus to return lines of swimming pool water-circulation systems, the assemblies utilize spurs that may affirmatively grip, or cut or gouge into, the return lines to retain the ad... | 02/08/2005 |
| D496984 | Water purifier | 10/05/2004 |
| 6761827 | Method and apparatus for purifying water The invention relates to a method for purifying water by forming in an electrolytic cell molecular halogen, hypohalic acid, hypohalite ions or combinations thereof, from halide ions dissolved in the water; and dissolving one or more soluble metal salts in the water ... | 07/13/2004 |
