Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7207606 | Mechanical pipe joint, gasket, and method for restraining pipe spigots in mechanical pipe joint bell sockets A mechanical pipe joint, restraining gasket, and method for restraining pipe spigots within adjacent bell sockets. The restraining gasket is composed of two axially-separate components: a sealing portion and a restraining portion made of a plurality of arcuate locki... | 04/24/2007 |
| 7121594 | Toilet valve quick connect system A toilet valve quick connect includes an upper housing having a capture chamber which facilitates the operation of a capture nut with oversized outward peripheral portions to enable it to be turned within the confines of a typical toilet tank. The toilet valve quick... | 10/17/2006 |
| 6946183 | Slip resistant mat A slip resistant floor mat composed of one or more layers of material the bottom layer of which incorporates a plurality of recessions with inset suction cups in the bottom surface of the bottom layer that comes into contact with the intended surface, such as a floo... | 09/20/2005 |
| 6866298 | Toilet valve quick connect system A toilet valve quick connect includes an upper housing having a capture chamber which facilitates the operation of a capture nut with oversized outward peripheral portions to enable it to be turned within the confines of a typical toilet tank. The toilet valve quick... | 03/15/2005 |
| 6728976 | Toilet tank attachment bracket with unitary spring arm An attachment system for mounting a flush tank to a toilet bowl includes a bracket disposed between the tank and the bowl. The bracket has a generally planar body defining a central opening receiving a tubular flush extension extending from the tank into an opening ... | 05/04/2004 |
| 6059261 | Universal connector A plumbing connector is provided to communicate water between a wall valve and a toilet. An adapter is provided to facilitate a mating relationship between threads of a first configuration on the valve and threads of a second configuration on the connecto... | 05/09/2000 |
| 5295273 | Pressurized flush toilet coupling A coupling connects a pressurized flush water vessel held in a toilet tank to a toilet bowl. The coupling has a passageway which provides direct fluid communication between the vessel and the bowl and a chamber for accumulating drainage, which may be exha... | 03/22/1994 |
| 4924533 | Coupling means for toilet tank and bowl assembly A mounting assembly to couple a water tank to a water closet is disclosed. The mounting assembly includes a threaded bolt, tubular elastomeric seal member and fastening means. The elastomeric member has centering ribs formed around its outer surface, a fl... | 05/15/1990 |
| 4757560 | Toilet tank gasket A one piece gasket for a toilet which eliminates the use of separate sealing washers and spacing devices is disclosed. The one piece gasket is formed with flange portions extending from a central sealing portion and has upstanding connectors (with fastene... | 07/19/1988 |
| 4445237 | Close coupled water-closet combination and adapter This invention relates to an adapter for coupling a toilet bowl, such as residential toilet bowl, to a flush device that is generally utilized in a commercial close coupled water-closet combination. The adapter includes a substrate having a hole therethro... | 05/01/1984 |
| 4283802 | Toilet tanks with built-in water supply valve A toilet tank has water supply and overflow ducts which are integrally formed with the base and walls of the tank. The water supply duct is connected to a water inlet at one end to supply water to the tank and has an inlet valve at its other end to contro... | 08/18/1981 |
| 4162548 | Water closets A water closet shell comprising a basin component formed in one piece of molded plastics material and a cistern component likewise formed and when assembled defines a water closet unit having a flushing rim section. The flushing rim section is defined by ... | 07/31/1979 |
