| 摘要 |
The present invention is a drip retainer for liquid dispensers, such as fuel pumps. The device itself has a semicylindrical body adapted for insertion into the nozzle of a fuel dispenser pump. The semicylindrical body is open at the inflow end and has a crescent-shaped lip for restricting fluid flow at the outflow end. The retainer gradually increases in thickness from the inflow end to the outflow end, forming a ramp up to the crescent-shaped lip. The retainer has a slightly smaller radius of curvature at the inflow end than at the outflow end, so that the retainer is inserted into the nozzle, inflow end first, and forms a press fit or friction fit in the nozzle. Fuel under pressure passes over the crescent shaped lip. When the nozzle is shut off, any residual fuel trickling through the nozzle is stopped by the crescent-shaped lip.
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