Fluent material handling – with receiver or receiver coacting mea – Filling means with receiver or receiver coacting means – Extensible or expansible inserted coupler or centering means...
Patent
1997-07-17
1998-11-03
Douglas, Steven O.
Fluent material handling, with receiver or receiver coacting mea
Filling means with receiver or receiver coacting means
Extensible or expansible inserted coupler or centering means...
141384, 220 862, 222539, B65B 104, B65B 304
Patent
active
058294945
ABSTRACT:
A filling tube assembly adapted for fastening to a threaded filling hole of an oil tank for filling fuel oil, including a connector and a filling tube having a first end fixedly connected to the connector and a second end remote from the connector, wherein the connector has a first outer thread at one end, a second outer thread at an opposite end, and a collar raised around the periphery between the first outer thread and the second outer thread, the first outer thread and the second outer thread being adapted for threading into the threaded filling hole of the oil tank or screwing up with a screw cap alternatively, the filling tube being suspended inside the oil tank and the passage of the oil tank being closed when the second outer thread is threaded into the threaded filling hole of the oil tank and the first outer thread is screwed up with the screw cap, the filling tube being extended out of the oil tank for filling fuel oil into the oil tank when the first outer thread is threaded into the threaded filling hole of the oil tank and the screw cap is removed from the connector.
REFERENCES:
patent: 579626 (1897-03-01), Wilson
patent: 4548344 (1985-10-01), Hestehave et al.
patent: 5033521 (1991-07-01), Martin
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