Fluent material handling – with receiver or receiver coacting mea – Miscellaneous
Patent
1978-11-08
1981-04-21
Martin, Jr., William D.
Fluent material handling, with receiver or receiver coacting mea
Miscellaneous
137615, 141DIG1, B65B 3100, B67C 328
Patent
active
042627125
ABSTRACT:
A gasoline dispensing nozzle is magnetically held in place to the fueling filler neck of the vehicle, while at the same time providing for a tight seal at the nozzle filler neck interface preventing escape of vapors to the atmosphere. Vapor directional control means may be included in the nozzle or be operably associated therewith, which will permit the recovery or redirecting of gasoline vapors issuing from the vehicle fuel tank during the refueling process. At the filler end of the nozzle is a switchable permanent magnet to latch, support and hold the nozzle to the vehicle fillpipe. To remove the nozzle when refueling is completed, the magnetic flux is switched in a different direction away from the fillpipe to a metal element known as a keeper. A pressure sensing mechanism is provided at the outer face of the magnet so that when a suitable seal is made between the nozzle magnet and the filler neck surface, a signal is provided via the pressure sensor that the seal has been made. The nozzle is designed to have a forward portion which swivels or pivots about an axis on the rear portion of the nozzle. The forward portion, i.e. torque arm, is relatively short in length and provides a minimum amount of moment arm with respect to the axis so that minimum peel forces are generated by the weight of nozzle and hoses which permits smaller size magnets to be utilized.
REFERENCES:
patent: 3148713 (1964-09-01), Jones
patent: 3316514 (1967-04-01), Radus et al.
patent: 3566928 (1971-03-01), Hansel
patent: 3724499 (1973-04-01), Huniu
patent: 3995669 (1976-12-01), Weidenaar et al.
patent: 3995670 (1976-12-01), Weidenaar et al.
patent: 4060110 (1977-11-01), Bower
Exxon Research & Engineering Co.
Martin, Jr. William D.
Paris F. Donald
Zagarella, Jr. Eugene
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