Title:
APPARATUS FOR PREVENTING OIL FROM MIXING AT GAS STATION AND OIL RESERVING SITE
Document Type and Number:
Japanese Patent JP3795975
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent a type of oil from being mistaken even when different kinds of oil are unloaded at the same time, by providing an oil type key on an oil injection port of a gas station or on a loading arm of an oil reserving site and by knowing oil mixture by sensing match/mismatch signals between the oil type key and an oil type distinguishing device at the time of unloading and loading.
SOLUTION: A first joint 4 is placed at an outlet of an unloading valve 7 at a part where a flow path from a bottom valve joins, and a switch unit 8 for determining whether an oil injection port for unloading on an upper face of the unloading valve 7 aligns with an oil type in a hatch and also for specifying a hatch is provided in electrical connection with a control unit. The switch unit 8 has a function for specifying a hatch for unloading with hatch select switches 8a to 8c provided on the upper face and a function for determining whether the oil type matches. An oil type distinguishing switch 9 is equipped with a contact on an end side opposite to a key insertion port and also with a movable switch plate movably at an opposite position to constitute a contact switch.
Inventors:
Shinsuke Maeshiba
Application Number:
JP28270896A
Publication Date:
July 12, 2006
Filing Date:
October 24, 1996
Export Citation:
Assignee:
Showa Kiki Kogyo Co., Ltd.
International Classes:
B67D7/32; (IPC1-7): B67D5/32
Domestic Patent References:
| JP6312795A | ||||
| JP1161497U | ||||
| JP61115898A |
Attorney, Agent or Firm:
Masu Kobori
Takato Tsutsumi
Takato Tsutsumi
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