Receptacles – Closures – Key controlled
Patent
1984-06-21
1986-04-01
Pollard, Steven M.
Receptacles
Closures
Key controlled
220203, 220206, 220DIG33, B65D 5116
Patent
active
045792445
ABSTRACT:
A fuel tank cap is provided having airtight engagement with the oiling port of a fuel tank. The cap is locked to the oiling port by a key cylinder. Removal of the cap from the oiling port is accomplished by initial rotation of the key cylinder to enable communication between the interior of the fuel tank and the ambient atmosphere through a passage which is adjacent to and substantially parallel with the key cylinder and further rotation of the key cylinder to disengage the cap from the oiling port.
REFERENCES:
patent: 3186580 (1965-06-01), Previte
patent: 3938692 (1976-02-01), Crute
patent: 3945454 (1976-03-01), Kinoshita et al.
patent: 4245751 (1981-01-01), Neiman
Kabushiki Kaisha Tokai Rika Denki Seisakusho
Pollard Steven M.
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