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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7044327 | System and method for tank pressure compensation A supplemental fluid tank, preferably having two chambers each partially containing a fluid, fluid communicated intermediate a fuel tank and vent to reduce fuel vapor emissions, particularly for a boat. More specifically, when fuel is used or cooled, pressure or vol... | 05/16/2006 |
| 5449029 | Fill limit valve assembly An apparatus for controlling fuel vapor discharge from within a vehicle fuel tank includes a valve housing having vapor inlet and outlet openings, a float valve in the valve housing, and a skirt extending around the valve housing to define an annular chan... | 09/12/1995 |
| 5183087 | Refueling vapor recovery system The invention incorporates a high flow, pilot actuated pressure relief/rollover valve into a refueling vapor recovery system having a vapor vent line for recirculating vapor past the aspirator of a refueling nozzle and a nozzle seal for engaging a refueli... | 02/02/1993 |
| 5103877 | Vapor-liquid separator for evaporative emissions control system A tank vapor vent valve for a vehicle on board fuel emissions vapor recovery system has a liquid-vapor separator integrated into its design. A blocking valve is held closed when the tank is not being filled, but springs open when the nozzle is inserted to... | 04/14/1992 |
| 4483461 | Flash-back arrestor for dissolved acetylene cylinders A flash-back arrestor for dissolved acetylene cylinders wherein a cylinder gas-permeable at both ends thereof is joined to an inner end of a valve body in a dissolved acetylene cylinder in such a manner that said cylinder is communicated with a gas passag... | 11/20/1984 |
