James M Keller

US Patent:

41416929, Feb 27, 1979

Filed:

Jan 19, 1977

Appl. No.:

5/760623

Inventors:

James L. Keller - Fullerton CA

Assignee:

Union Oil Company of California - Los Angeles CA

International Classification:

C10L 120

US Classification:

44 59

Abstract:

Liquid fuels of readily identifiable origin contain extremely small quantities of certain types of chlorohydrocarbon or chlorocarbon tracers dissolved therein. The presence of such tracers is readily detected by gas chromatography, using a pulsed electron capture detector.

US Patent:

41301480, Dec 19, 1978

Filed:

Jul 1, 1976

Appl. No.:

5/701575

Inventors:

James L. Keller - Fullerton CA

Assignee:

Union Oil Company of California - Los Angeles CA

International Classification:

B65B 318
B65B 3106

US Classification:

141218

Abstract:

A gasoline dispensing nozzle for discharging gasoline into receiving vessels and for removing vapors therefrom through a vapor removal line is provided with an automatic shut-off device that terminates the delivery of gasoline in the event liquid gasoline flows into said vapor removal line. The shut-off device comprises a sensing orifice disposed at the end of a flexibly mounted tube within said vapor removal line, which tube leads to a passageway extending into the housing of said gasoline nozzle and terminating in a chamber that contains a conventional, diaphragm-operated, trigger mechanism for closing the main nozzle valve. In operation, no matter which way the nozzle is inserted into a gasoline tank fill pipe, the sensing orifice, by gravity, will fall into a position such that, if gasoline flows into said vapor removal line, it must also flood the sensing orifice. When gasoline enters the sensing orifice, the diaphragm-operated trigger mechanism, responding to a suction created by the flow of gasoline through a conventional venturi within the nozzle housing, releases the spring-to-close main nozzle valve.