Combustion – Flame holder and fuel tank assembly
Patent
1984-05-02
1985-10-08
Focarino, Margaret A.
Combustion
Flame holder and fuel tank assembly
222 3, 126 40, 137322, F23D 1304
Patent
active
045457590
ABSTRACT:
This invention relates to an improved attachment for a propane/butane fuel container of the aerosol type to provide torches, burners, heaters, lanterns, and the like. In one embodiment the attachment itself includes a torch and control valve, while in other embodiments it is an adaptor to connect conventional or separate devices to the container. The attachment has a cylindrical boss with a central well which screws onto the threaded stem portion of the fuel container to an assembled position in which an actuator pin opens a self-sealing outlet valve in the container. The attachment has a first O-ring seal seated inside the well and a second O-ring seal seated around the inlet boss just below an outwardly extending shoulder. As the assembly is tightened into position on the fuel container, these two O-ring seals are simultaneously compressed, the first against the upper surface of the stem portion and the second against the annular rim of the container. This has the advantage of automatically providing a double seal against leakage of the fuel, as well as transferring some of the structural stress from the stem portion of the container to the stronger annular rim.
REFERENCES:
patent: 3140740 (1964-07-01), Lagried et al.
patent: 3223139 (1965-12-01), Smith et al.
patent: 3732060 (1973-05-01), Churchill et al.
patent: 3896784 (1975-07-01), Baxter
patent: 4082993 (1978-04-01), Oakes
patent: 4332550 (1982-06-01), Baumann
Giles George B.
McCallion Joseph J.
Ross Donald B.
Sherritt William C.
Focarino Margaret A.
Giles Tool Agencies Limited
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