Fluent material handling – with receiver or receiver coacting mea – With signal – indicator – recorder – inspection means or exhibitor
Reexamination Certificate
2007-07-24
2007-07-24
Douglas, Steven O. (Department: 3771)
Fluent material handling, with receiver or receiver coacting mea
With signal, indicator, recorder, inspection means or exhibitor
C361S215000, C361S212000
Reexamination Certificate
active
11345094
ABSTRACT:
A fuel-discharge protection system is provided herein to prevent electrostatic hazard when a tank truck is discharging fuel into a reservoir. This invention mainly contains an oil-valve switch device, a driving device, and an electrostatic detection and control device. The fuel is discharged from the tank truck into the reservoir through the oil-valve switch device. The electrostatic detection and control device monitors the ground resistance and the electrostatic voltage of the tank truck during the entire process of fuel discharge. The electrostatic detection and control device, by controlling the driving device, opens the valve of the oil-valve switch device to allow fuel discharged into the reservoir only when the ground resistance and the electrostatic voltage of the tank truck are within respective safety ranges.
REFERENCES:
patent: 4225899 (1980-09-01), Sotiriou
patent: 4901195 (1990-02-01), Stemporzewski, Jr.
patent: 5159523 (1992-10-01), Claassen et al.
patent: 6127934 (2000-10-01), Powell et al.
patent: 00448414 (2001-08-01), None
patent: 00590216 (2004-06-01), None
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