Interlock system for a gasoline dispensing nozzle

Details Interlock system for a gasoline dispensing nozzle Interlock system for a gasoline dispensing nozzle

1977-06-13

1978-10-24

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 318, B65B 5714

Patent

active

041216350

ABSTRACT:
A gasoline dispensing nozzle having a system for receiving vapors displaced from a motor vehicle gasoline tank being filled, and an interlock system for both preventing the dispensing of gasoline and closing the vapor receiving system until the discharge spout is properly inserted into the motor vehicle fillpipe. The interlock system includes a first valve mounted in the vapor receiving system outside the discharge spout. This first valve is opened when the nozzle is properly inserted into the fillpipe, and is interconnected with the automatic shut-off system of the nozzle so that dispensing of gasoline is permitted only when the nozzle is properly inserted into the fillpipe. The interlock system also includes a second valve which closes the vapor receiving system, thereby preventing vapors from escaping, until the nozzle is properly inserted in the fillpipe.

REFERENCES:
patent: 3710831 (1973-01-01), Riegel
patent: 4031930 (1977-06-01), Sutcliffe et al.
patent: 4033389 (1977-07-01), Hansel et al.

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