Adapter for customizing gas tank fill fittings

Pipe joints or couplings – With lock or seal


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285 87, 285 92, 285392, 285175, 411940, F16L 1508




An adapter ring which screws onto a gas tank fill fitting to cover the standard threads on the fitting and provided customized non-standard threads to prevent suppliers without matching fill hose couplings from connecting their supply hose outlet fittings to the fill fittings of tanks which they are not authorized to use. The adapter rings are fastened in place with a thread damaging member which will damage the threads on the fill fitting if there is an attempt to unscrew the adapter ring.

patent: 199108 (1878-01-01), Scofield
patent: 417393 (1889-12-01), McAllister
patent: 703595 (1902-07-01), Kennealy
patent: 786516 (1905-04-01), Phelan
patent: 981180 (1911-01-01), Farmon
patent: 1202096 (1916-10-01), Poling
patent: 1218359 (1917-03-01), Beatty
patent: 1240245 (1917-09-01), Oller
patent: 1287431 (1918-12-01), Quarles et al.
patent: 1570155 (1926-01-01), Karbowski
patent: 2044302 (1936-06-01), Holton
patent: 2548600 (1951-04-01), Gill
patent: 2805871 (1957-09-01), Hammon
patent: 3955835 (1976-05-01), Farrington
patent: 4638919 (1987-01-01), Frenick
patent: 4665960 (1987-05-01), Brzezicki et al.


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