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 |
| 7063112 | Fuel dispensing nozzle having a dripless spout A fuel dispensing nozzle having a dripless spout has a nozzle for placement in a tank. The nozzle has a housing with an air bleed device, an attitude support device extends from the housing, a gland joined to the attitude support device and then the spout attaches t... | 06/20/2006 |
| 7028561 | Fuel dispenser fuel meter error detection device, system and method A flow switch used in conjunction with a fuel meter in a fuel dispenser to determine when fuel is flowing. A flow switch can only be activated if fuel is flowing through the flow path of the flow switch. If fuel is flowing as indicated by the fuel flow switch, but t... | 04/18/2006 |
| 6959837 | Dual piston/poppet flow switch A dual piston/poppet valve in a fuel dispenser works with a two-stage valve to help eliminate errors from an inferential flow meter. When the two-stage valve opens partially, a secondary fuel path is opened in the dual piston/poppet valve. A sensor detects the openi... | 11/01/2005 |
| 6941978 | Vapor recovery system with ORVR compensation A fuel dispenser with a booted nozzle for vapor recovery is modified to include check valves in a vapor return path. The check valves selectively allow atmospheric air into the vapor return path to alleviate nuisance shut offs at the nozzle when an ORVR vehicle is b... | 09/13/2005 |
| 6935191 | Fuel dispenser fuel flow meter device, system and method A flow switch used on conjunction with a fuel flow meter in a fuel dispenser to determine when fuel flow rate signals form a fuel flow meter should be ignored in the calculation of flow rate and/or volume of fuel dispensed. An inferential fuel flow meter may be used... | 08/30/2005 |
| 6923221 | Vapor recovery system with ORVR compensation A fuel dispenser with a booted nozzle for vapor recovery is modified to include check valves in a vapor return path. The check valves selectively allow atmospheric air into the vapor return path to alleviate nuisance shut offs at the nozzle when ORVR vehicle is bein... | 08/02/2005 |
| 6684921 | Liquid supply nozzle A liquid supply nozzle having automatic shut-down and alarming function will stop feeding a liquid when a diaphragm is damaged with alarming the damage. The liquid supply nozzle can contain a press member under the diaphragm which pushes up the diaphragm ... | 02/03/2004 |
| 5718269 | Safety tank apparatus for liquid storage A safety tank apparatus is provided for installation to receive and store a liquid hydrocarbon or hydrocarbons, or the like, and from which the liquid may be withdrawn. It comprises tank structure including an inner metallic tank; an outer metallic tank p... | 02/17/1998 |
| 5715875 | Method and apparatus for dry testing vapor recovery systems A vapor recovery valve that includes two mechanisms for opening the valve is disclosed. The first mechanism opens the valve when fuel is being dispensed by a fuel delivery system. The second mechanism selectively opens the valve independent of whether the... | 02/10/1998 |
| 5645115 | Dispensing nozzles A fuel nozzle has a modular construction wherein valve, venturi and spout modules are mounted in a bore formed in a nozzle body. The main fuel valve is controlled, independently of fuel pressurization, in response to a mechanical signal input, acting thro... | 07/08/1997 |
| 5505234 | Electronic trigger assembly for a fuel dispensing nozzle An electronic fuel dispensing nozzle assembly adapted to reduce the undesirable effects of a pure mechanical system by providing an electromechanical fuel dispensing trigger assembly. An electromechanical fuel dispensing trigger assembly includes a valve ... | 04/09/1996 |
| 5460197 | Valve for a tap of a gas cylinder and tap having such a valve The valve (31) comprises at least two lateral openings (34, 36) which can be shut off by a plug (40) provided with an axial orifice (48) for the passage of gas and sliding axially in the casing (32) between a position in which the openings, (34, 36) are s... | 10/24/1995 |
| 5421382 | Vapor recovery nozzles and sub-assemblies therefor A vapor recovery nozzle employed in minimizing atmospheric pollution by fuel vapors is described. The nozzle comprises a bellows which is compressed against the fill pipe of a vehicle during discharge of fuel therein. The bellows surrounds a nozzle spout ... | 06/06/1995 |
| 5381838 | Fuel inlet device for a fuel tank In a fuel inlet device for a fuel tank, a flap valve is provided at an end of a fuel filler tube opening into the fuel tank, and a float which rises with a rise in a surface level of the fuel in the tank closes this flap valve when the fuel surface level ... | 01/17/1995 |
| 5307848 | Non-aerating tank filling nozzle with automatic shutoff A non-aerating fluid dispensing nozzle for dispensing fluid into a receiving tank has a vapor control and containment mechanism for vapors formed in the receiving tank. The mechanism has a chamber disposed within the housing of the nozzle and a gas passag... | 05/03/1994 |
| 5297594 | Vapor recovery nozzle A vapor recovery nozzle having a turbine located in the nozzle portion which is driven by the flow of fuel. The turbine rotates an impeller also located in the nozzle which draws in the vapor during pump. The nozzle also has a hydraulic system which autom... | 03/29/1994 |
| 5255723 | Vapor recovery fuel dispensing nozzle A fuel dispensing nozzle includes a nozzle body and a projecting spout and surrounding bellows which define a fuel supply passage and a vapor return passage connected to corresponding concentric passages within flexible coaxial hoses. The body supports a ... | 10/26/1993 |
| 5224524 | Multi-variable regulator having at least four mechanical ports and system provided with such a regulator Multi-variable regulator having at least four mechanical ports having a linear transfer function between at least two of the ports. The multi-variable regulator has a body which is movable in three dimensions. Joint structure connect the body to the ports... | 07/06/1993 |
| 5197523 | Dispensing nozzle improvement for extracting fuel A fuel dispensing nozzle (10) has a body (12) including a fuel passage for fuel to flow from a source thereof through the body. A spout (18) is attached to the body in fluid communication therewith for fuel to flow into the spout from the passage. The dis... | 03/30/1993 |
| 5178197 | Fuel dispensing nozzle A pre-pay fuel system having a fuel nozzle with automatic cutoff provisions when a full tank exists or unwanted tank pressure conditions are detected is also provided with a low fuel pressure controlled cutoff. The fuel pressure cutoff allows rapid respon... | 01/12/1993 |
| 5141037 | Vapor recovery fuel dispensing nozzle A fuel dispensing nozzle includes a nozzle body and a projecting spout and surrounding bellows which define a fuel supply passage and a vapor return passage connected to corresponding concentric passages within flexible coaxial hoses. The body supports a ... | 08/25/1992 |
| 5121777 | Vapor recovery nozzles and sub-assemblies therefor A vapor recovery nozzle, employed in minimizing atmospheric pollution by fuel vapors is described. The nozzle comprises a bellows which is compressed against the fill pipe of a vehicle fuel tank during discharge of fuel therein. The bellows surrounds a no... | 06/16/1992 |
| 5069260 | Fuel dispensing nozzle with vapor-proof seal A lightweight, low maintenance and efficient gasoline dispensing nozzle having a nozzle spout to be inserted into the fill pipe of a motor vehicle to dispense fuel thereto from an underground storage tank while reliably preventing the escape of hydrocarbo... | 12/03/1991 |
| 5035271 | Vapor recovery fuel dispensing nozzle A fuel dispensing nozzle includes a nozzle body and a projecting spout and surrounding bellows which define a fuel supply passage and a vapor return passage connected to corresponding concentric passages within flexible coaxial hoses. The body supports a ... | 07/30/1991 |
| 5016689 | Safety tank apparatus for liquid storage A safety tank apparatus is provided for installation to receive and store a liquid hydrocarbon or hydrocarbons, or the like, and from which the liquid may be withdrawn. It comprises tank structure including an inner metallic tank; an outer metallic tank p... | 05/21/1991 |
| 4986321 | Fuel dispensing nozzle having a flow rate limiter A fuel dispensing nozzle for gasoline fuel pumping stations and the like has an inlet through which the fuel is supplied within a range of inlet pressures, an outlet from which fuel is discharged and a flow passage having valving for selectively opening c... | 01/22/1991 |
| 4984612 | Automatic shut-off liquid delivery nozzle A delivery nozzle is connected to the outlet end of a fuel supply hose and includes an outlet pipe. A valve is operatively associated with the discharge end of the outlet pipe for opening and closing the latter and an operator is provided for closing the ... | 01/15/1991 |
| 4951722 | Fuel dispensing nozzle having a flow rate limiter A flow rate limiting device (40) for a fuel dispensing nozzle (10) having an inlet (12) through which fuel is supplied to said nozzle (10) from a supply hose (14) and an outlet (20) from which fuel is discharged, as into a tank of a vehicle. The device (4... | 08/28/1990 |
| 4947905 | Flow rate limiting device for an automatic shut-off liquid dispensing nozzle An automatic shut-off fuel dispensing nozzle (10) with a flow rate limiting mechanism (90). The nozzle (10) includes a valve (24) which controls the flow of fuel through a passage (16) leading from the nozzle inlet (12) to the nozzle outlet (20) which is ... | 08/14/1990 |
| 4913200 | Liquid dispensing nozzle with a pump pressure responsive automatic shut-off mechanism A liquid dispensing nozzle (10) with a pump pressure responsive automatic shut-off mechanism. The nozzle (10) comprises a body (12) with an internal passageway (13) therethrough defining an inlet port (14) for being connected to a dispensing pump and an o... | 04/03/1990 |
| 4877066 | Apparatus for filling transmission fluid into transmissions A filling apparatus for filling liquid into a container to either of at least two levels has a liquid pouring gun unit for dispensing a liquid and a sensor thereon for sensing that the distance of a surface of the liquid from the end of the gun unit close... | 10/31/1989 |
| 4572255 | Liquid dispensing nozzle with a pump pressure responsive automatic shut-off mechanism An improved liquid dispensing nozzle (10) for dispensing a liquid such as fuel, from a dispensing pump. The improved dispensing nozzle comprises a body (12) defining an internal passageway (13) provided with an inlet port (14) for releasably connecting th... | 02/25/1986 |
| 4497350 | Vapor recovery system having automatic shut-off mechanism Flow through a vapor recovery nozzle is stopped when the liquid in a tank being filled reaches a predetermined level to cause a first diaphragm, which forms a wall of a first chamber, to move a latch release mechanism against the force of a single spring.... | 02/05/1985 |
| 4487238 | Nozzle having improved low flow characteristics and poppet therefor A fluid dispensing nozzle for gasoline or the like includes a valve seat, a poppet valve for controlling flow through the valve seat, a spring urging the poppet valve closed, a valve stem extending into the poppet valve, a handle engaging the valve stem f... | 12/11/1984 |
| 4331187 | Liquid dispensing device A liquid dispensing device in the form of a so-called pistol valve for use with a petrol pump comprises a valve housing (1) having an inlet (2) connected to the pump and an outlet (3); a valve (5) for controlling the flow of liquid from the inlet to the o... | 05/25/1982 |
| 4133355 | Sealable dispensing nozzle with automatic shut-off Nozzle for a closed system holding a volatile fuel. The nozzle is adapted to sealably engage the filler pipe of a fuel tank whereby to avoid passage of fumes to the atmosphere during a fuel transfer operation. The nozzle will automatically discontinue fue... | 01/09/1979 |
| 4010781 | Gasoline dispensing nozzle guard with spout enclosure and vapor return line A guard for fuel dispensing nozzles is formed with a hollow projection surrounding and radially spaced from the nozzle spout for sealing engagement with structure surrounding the filler opening of a gasoline tank to provide for vapor recovery and is forme... | 03/08/1977 |
