Interlock system for a gasoline dispensing nozzle with a vapor r

Details Interlock system for a gasoline dispensing nozzle with a vapor r Interlock system for a gasoline dispensing nozzle with a vapor r

1975-09-02

1977-05-17

Aegerter, Richard E.

Fluent material handling, with receiver or receiver coacting mea

Automatic control of flow cutoff or diversion

Level or overflow responsive

141208, B65B 5714

Patent

active

040236013

ABSTRACT:
A dispensing nozzle assembly having a system for receiving the vapors displaced from a motor vehicle gasoline tank when it is being filled, an interlock system for preventing the dispensing of gasoline until the vapor receiving bellows is in contact with the fillpipe of the vehicle gasoline tank, and an attitude control valve system to prevent vapors from the underground storage tanks from being displaced back into the atmosphere through the vapor receiving system. The interlock system includes a valve connected in the vent line running from the end of the discharge spout to the automatic shut-off system in the nozzle housing, said valve being interconnected with the vapor receiving system so that it is closed when the vapor receiving system is not in contact with a fillpipe, causing the automatic shut-off system to prevent dispensing of gasoline.

REFERENCES:
patent: 3780776 (1973-12-01), Eklund
patent: 3811486 (1974-05-01), Wood

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