US 4,730,649 AGranted

Liquid delivery nozzle

AssigneeTokyo Tatsuno Co., Ltd.

InventorsHiroshi Matsumura, Siro Masai, Noboru Oguma, Haruhisa Yamada

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Abstract

A liquid delivery nozzle to be used in gasoline stations comprising two pairs of light sensor in which the first pair arranged at the tip end of the nozzle is of reflection type and the second pair arranged a little higher up from said first pair is of usual contact type, for more relevantly coping with full tank delivery. The sensors are mounted in a casing which is to be mounted on the nozzle inner wall surface near the tip end. In order to prevent leads extending through said nozzle and a hose connected therewith for angular movement from being damaged due to such angular movement, a flexible sheet on which leads are printed or embedded, has a part wound to form several spiral turns. The sheet is arranged in the portion where angular movement occurs to cope with such movement by loosening or tightening of the spiral turns.

Claims10

Dependent claims

A liquid delivery nozzle comprising;

a body portion having a passage for conducting liquid, valve means arranged in the passage and means for actuating said valve means,
a mount for connecting a flexible supplier hose with the body portion so as to communicate the hose with the passage,
a barrel portion having an open end as a liquid outlet while the other end is connected with said body portion so that, when said valve means is opened by said actuating means, liquid supplied through said hose may be delivered out of said outlet through the passage, and
a casing mounted on the inner wall surface of the barrel portion in the vicinity of the outlet and having light emitting means and light receiving means mounted therein so as to detect rising liquid level and generate detection signal,
said light emitting means and light receiving means consist of two pairs in which the first pair comprises a light emitter such as a light emitting diode and a light receiver such as a phototransistor respectively arranged at the forward end of said casing so that light emitted by the former when energized and reflected from rising liquid may be received by the latter to generate a signal, while the second pair comprises a light emitter such as a light emitting diode and a light receiver such as a phototransistor respectively arranged at a little higher up from said first pair and opposite to each other so that light emitted by the former when energized and normally received by the latter is intercepted by rising liquid to generate another signal.

2 more elements

A liquid delivery nozzle comprising

a body portion having a passage for conducting liquid, vlave means arranged in the passage, means for actuating said valve means, and a connector chamber,
a mount arranged opposite to the connector chamger, for connecting a flexible supplier hose with the body portion so as to communicate the hose with the passage,
said mount having a half portion which is diametrically and rotationally inserted into the body portion and terminated at the connector chamber and is formed with an opening for communication the nose with the passage, and another half portion protruded from the body portion so as to be connected with the hose,
a barrel portion having an open end as a liquid outlet while the other end is connected with the body portion so that, when said valve means is opened by said actuating means, liquid supplied through said hose may be delivered out of said outlet,
a casing mounted on the inner wall surface of the barrel portion in the vicinity of the outlet and having light emitting means and light receiving means mounted therein so as to detect rising liquid level and generate a detection signal, and
connector means arranged for electrical connection of first leads extending through the hose and fixed at their one end to the mount and second leads extending through said barrel portion into said light emitting means and light receiving means and fixed at their one end to the connector chamber,
said connector means essentially comprising a flat and flexible sheet on which a desired number of leads are parallelly arranged, said flat and flexible sheet being spirally formed in the connector chamber.

4 more elements

Dependencies are inferred from the claim text.