초록 ▼

The locking fuel nozzle is used to prevent spilling of fuel while filling two-inch fill tubes on railroad cars. The nozzle includes a nozzle tube that is secured to a pressurized fuel source. The nozzle tube is inserted into the opening of the fill tube and delivers fuel from the pressurized fuel so

The locking fuel nozzle is used to prevent spilling of fuel while filling two-inch fill tubes on railroad cars. The nozzle includes a nozzle tube that is secured to a pressurized fuel source. The nozzle tube is inserted into the opening of the fill tube and delivers fuel from the pressurized fuel source to a fuel receptacle. A sealing member is disposed along the nozzle tube. A compression member is slidably disposed along the nozzle for impacting the sealing member. A handle is secured to the compression member for forcing the compression member along the nozzle tube. The compression member compresses the sealing member forcing it to swell. The sealing member swells until it completely seals the opening of the fill tube and the compression member is then locked into place by the handle.

대표청구항 ▼

1. A locking fuel nozzle, comprising:an elongate, generally cylindrical nozzle tube having a first end secured to a pressurized fuel source, a second end adapted to be inserted into a fill tube of a fuel receptacle, and an opening at said second end for delivering fuel from the fuel source to the fu

1. A locking fuel nozzle, comprising:an elongate, generally cylindrical nozzle tube having a first end secured to a pressurized fuel source, a second end adapted to be inserted into a fill tube of a fuel receptacle, and an opening at said second end for delivering fuel from the fuel source to the fuel receptacle;a compressible sealing member disposed along said nozzle tube adjacent the opening at the second end of said nozzle tube;a compression member slidably disposed along said nozzle tube for impacting and compressing said sealing member; anda handle pivotally mounted to said fuel source for causing said compression member to impact said sealing member;whereby said sealing member creates a seal between the fill tube and said nozzle tube inserted therein to prevent fuel from spilling while delivering fuel to the fuel receptacle.2. The locking fuel nozzle according to claim 1, further comprising a mounting plate disposed along said nozzle tube.3. The locking fuel nozzle according to claim 1, further comprising a threaded nozzle nut for securing said nozzle tube to the pressurized fuel source.4. The locking fuel nozzle according to claim 1, wherein said sealing member comprises an impact end, an insertion end, a main body portion having a outer diameter, an impact receiving portion disposed along said impact end, a pressure absorbing portion disposed along said insertion end and a center through hole for mounting said sealing member onto said nozzle tube.5. The locking fuel nozzle according to claim 4, wherein said sealing member further comprises a plurality of hollow sections extending through said main body portion for easing the compression of the sealing member.6. The locking fuel nozzle according to claim 4, wherein the main body of said sealing member is made from a flexible rubber.7. The locking fuel nozzle according to claim 4, wherein the impact receiving portion and the pressure absorbing portion are made from a rigid rubber that is resistant to compression.8. The locking fuel nozzle according to claim 1, wherein said compression member comprises a first end, a second end, a generally cylindrical outer perimeter, a center through hole for slidably mounting the compression member on said nozzle tube and a slot disposed along the first end.9. The locking fuel nozzle according to claim 8, wherein said mounting plate slidably engages the slot in said compression member for urging said compression member into impacting engagement with said sealing member, said mounting plate having a fastener receiving hole extended through it.10. The locking fuel nozzle according to claim 1, wherein said handle comprises an elongated, rod shaped body with a top end and a bottom end, a grip disposed on the top end of said handle, a mounting portion disposed at the bottom end of said handle, and a side projection having a through hole, whereby said handle is pivotally mounted to the fuel supply by a bolt and is free to move from an unlocked position to a locked position.11. The locking fuel nozzle according to claim 10, further comprising an extension bar having a curved main body with a first end, a second end and a threaded hole extending through said second end, the first end of said extension bar being pivotally mounted to the side projection of said handle.12. The locking fuel nozzle according to claim 11, further comprising a compression member adjuster for adjusting the amount of movement of the compression member, having a main body portion, an elongated threaded projection that engages the threaded hole of said extension bar, and a fastener receiving hole extending through the main body portion of said compression member adjuster.13. The locking fuel nozzle according to claim 12, further comprising a pair of mounting brackets for securing the compression member adjuster to the compression member, each of said brackets having a top portion, a bottom portion, a spacer portion perpendicularly disposed between the top portion and the bottom portion and a plurality of through holes disposed along said brackets, whereby the bottom portion of said brackets is secured on either side of said compression member by a fastener extending through one of said through holes on each bracket and whereby said compression member adjuster is secured in between said brackets by a fastener that extends through the fastener receiving hole on the compression member adjuster and one of the through holes on each of said brackets.14. The locking fuel nozzle according to claim 13, further comprising a bolt plate having a generally rectangular body with a first fastener hole and a second fastener hole each hole being adapted to receive a fastener, whereby said bolt plate secures said brackets to said mounting plate.15. The locking fuel nozzle according to claim 1, further comprising a crush ring disposed along said nozzle tube between the sealing member and the compression member for distributing the impact force from the compression member evenly along the sealing member to uniformly compress the sealing member.16. The locking fuel nozzle according to claim 1, further comprising a retaining ring disposed along said nozzle tube adjacent the opening on said nozzle tube for preventing the sealing member from sliding along said nozzle tube.17. The locking fuel nozzle according to claim 1, further comprising a plurality of retaining fasteners disposed around the nozzle tube.18. The locking fuel nozzle according to claim 1, further comprising an automatic shut off valve for cutting off the delivery of fuel from the fuel supply once the fuel tank is full.