Fuel dispensing nozzle having a dripless spout

Details Fuel dispensing nozzle having a dripless spout Fuel dispensing nozzle having a dripless spout

2006-06-20

2006-06-20

Maust, Timothy L. (Department: 3751)

Fluent material handling, with receiver or receiver coacting mea

Filling means with receiver or receiver coacting means

Drip prevention

C141S002000, C141S286000, C141S389000, C141S392000, C222S571000

Reexamination Certificate

active

07063112

ABSTRACT:
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 to the gland. At fuel shutoff, fuel remains in the gland and the spout. Fuel drops exit the gland then the spout. Regulations limit the drops to three or less. Smooth tubes have little if any capillary action while tubes with roughened interior surfaces retain fluid. The dripless spout has a texture applied to the interior surface of the gland, the spout, or both by way of a screen; a hole in the attitude support device; and the air bleed device located in the vapor path to reduce negative vacuum.

REFERENCES:
patent: 5127451 (1992-07-01), Fink, Jr. et al.
patent: 5178197 (1993-01-01), Healy
patent: 6854491 (2005-02-01), Knight et al.

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