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 |
| 7228870 | Fuel saving valve assembly There is provided a one-way gasoline valve that is functional with conventional gasoline dispensing pumps in the United States today. An outer tubing body is open at both ends. One end is threaded to allow it to be placed into the end of a threaded gasoline dispensi... | 06/12/2007 |
| 7082972 | Fuel delivery nozzle A fuel dispensing nozzle has a body with a spout, which together define a passageway for flow of fuel from a hose connected to a fuel dispenser, through the spout, and into a vehicle fuel tank fill pipe. A boot surrounding the spout defines an outer rim that engages... | 08/01/2006 |
| 6598628 | Filling valve of bottling plant Improvements to filling valves of bottling plants in which the interruption of the processing fluids' flow happens automatically when the level of the liquid inside the filled bottle reaches the lower edge of the vent tube and the air trapped in the filli... | 07/29/2003 |
| 5613535 | Fuel dispenser shutoff switch A fuel dispensing unit shutoff switch is provided, the switch comprising: a fuel supply nozzle, having a fuel supply outlet, capable of being inserted into a fuel tank inlet conduit of a vehicle; a plurality of vacuum conduits, each vacuum conduit providi... | 03/25/1997 |
| 5337797 | Hydrocarbon dispenser nozzle A system that provides assistance in opening the main valve in a hydrocarbon dispenser nozzle. The external control member for opening the main valve acts on a pilot valve of small flow section, with the main valve being opened by fluid pressure applied t... | 08/16/1994 |
| 5027871 | LPG tank control valve system A multi-functional control valve system for an LPG tank. The valve system comprises, on a single frame, a fill port for delivery of LPG from a supply source to the tank, a manual shut-off valve for the fill port, a delivery port, independent from the fill... | 07/02/1991 |
| 4998571 | Overfill valve apparatus An overfill valve apparatus for use in a liquid storage container having a fill pipe includes an upper fill tube and a lower drop tube. A closure valve is positioned intermediate the fill tube and the drop tube. The valve includes a valve head moveable be... | 03/12/1991 |
| 4522227 | Fill valve responsive to liquid level The fill valve is responsive to liquid level by passing vented vapor through serial orifices. The inlet flow is stopped by shifting a valve spool which is responsive to the pressure between the orifices. A pressure booster adjacent the vent outlet serves ... | 06/11/1985 |
