Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 6913035 | Water filler for water tank A water filler includes a water filling device, and a regulating device. The water filling device includes an inner filling tube, an outer filling tube, and an upper cover. The regulating device includes a floating barrel, a sliding barrel, a water support disk, and... | 07/05/2005 |
| 6823785 | Printing unit A printing unit has at least four cylinders that form a printer. At least two of these four cylinders rotate independently of each other. At least one of the cylinders in the group of at least four cylinders has a set up rotational speed that is not zero and that is... | 11/30/2004 |
| 6776200 | Trigger apparatus and material handling apparatus including the same A trigger, for use with a port through which a flow of particulate solid material selectively passes, is disclosed and comprises a sensor and a trigger body having a first position and a second position. The trigger body is biased for movement to said first position... | 08/17/2004 |
| 5715856 | Liquid flow control apparatus A liquid flow control apparatus (5) suitable for handling milk from a milking machine, comprising a first chamber (10) that comprises an inlet (11) for the milk, an outlet (12) for connecting to a vacuum pump, and an outlet (14) for the milk to flow by gr... | 02/10/1998 |
| 5669083 | Water saver for flush tanks A flush valve system is disclosed which sequentially fills and drains the water of the flush tank so as to eliminate wasted water. The flush valve system has a secondary, weighted float and a primary float which controls the water inlet valve that, in tur... | 09/23/1997 |
| 5349981 | Drain valve for a flush tank The drain valve (1) has a valve tube (26) as well as an insert (37) with a float (38) in a valve housing (36). The float (38) is connected with the valve tube (26). In the bottom (49) of the insert (37) openings (39, 41a) are provided, which can be made t... | 09/27/1994 |
| 5179739 | Water conserving toilet assembly A toilet flushing apparatus designed to prevent excess loss of water that may happen when the flush valve stays open as the inlet valve is putting water into the tank. The initial flushing lifts the flush valve which acts in conjunction with a counter-wei... | 01/19/1993 |
| 5035257 | Toilet tank valve A toilet tank valve having a vertical riser with a collet thread and a plurality of flexible collet fingers. A slider tube is fitted into the riser. It has a plurality of peripheral grooves that can be engaged by the fingers to adjust the elevation of the... | 07/30/1991 |
| 4874531 | Apparatus and method for separating water from aviation fuel, and float control therefor For use in combination with a system for separating water from pressurized fuel in a filter-separator tank, there is provided a float valve and weight device that prevents fuel from leaving the tank if the interface between fuel and water is at an undesir... | 10/17/1989 |
| 4854340 | Toilet-tank float-booster A water - buoyant, water-saving device, attachable to undersurface of a toilet Flush-Tank Float so as to add to buoyant force of Float that causes closure of Flush-Tank water inlet-valve. Since buoyant closure force obtains when tank water has risen enoug... | 08/08/1989 |
| 4503881 | Automatic counterbalanced sewer valve with float closure An automatic valve for a sewer or the like includes a body having an upstream inlet and a downstream exit for liquid. A path joins the inlet and exit, and a closure gate is hingedly mounted to the body at a substantially horizontal axis located above the ... | 03/12/1985 |
| 4483367 | Stop fill valve A direct indicating automatic stop fill valve is mounted to the inlet to an LPG tank whereby inlet ports to the tank volume are covered by a slidably mounted cylinder which is raised through contact with a float/cam arrangement until the tank level reache... | 11/20/1984 |
| 4453560 | Hydraulically balanced valve mechanism The present invention is directed to a hydraulically balanced ballcock (10). A unique valve element (60) is translationally slidable within a valve housing (22) provided in the body (11) of the ballcock (10). A washer (74) received on the head (70) of the... | 06/12/1984 |
| 4313459 | Automatic fill-stop valve Inlet into propane cylinder is covered by sliding sleeve which is raised by a float when the tank level reaches desired level. Float is partly counterbalanced by lift spring and is driven into closed position by hydraulic force when motion is initiated by... | 02/02/1982 |
| 3935686 | Vehicle drain hole plug A drain plug to seal a drain hole opening in a vehicle body panel, the drain plug being generally in the shape of a cross with two crossed arms and, in its pre-installed free position, being folded along a longitudinal fold line extending through one arm ... | 02/03/1976 |
