Fluent material handling – with receiver or receiver coacting mea – Combined
Patent
1995-10-25
1997-08-19
Recla, Henry J.
Fluent material handling, with receiver or receiver coacting mea
Combined
141 65, 141 94, 141286, 292131, 292216, 29801, B65B 3104
Patent
active
056578008
ABSTRACT:
A gas tank evacuator (10) comprises: an evacuator housing (12) to be attached to a neck (44) of a gas tank (38); and an elongated valve-removal rod (14) movably mounted on, and passing through the evacuator housing, the valve-removal rod having a valve-engaging element (56) at a lower end thereof and a manipulation knob (54) member at a top end thereof for being manipulated to cause the valve-removal rod to engage and remove the overflow valve assembly. The evacuator housing has female threads (26) to be screwed onto male threads of the gas tank attachment neck with a stop (50, 56, 72) positioning the valve-removal rod aligned with the overflow valve assembly. When the evacuator housing is screwed to the gas tank attachment neck a fixed main valve actuator (46) on the evacuator housing opens a main valve (48) of the gas tank and residue gas in the tank is released to a sealed evacuation cavity (18). A pressure gauge (16) for providing an indication of the pressure of the released gas and a filter (40) for allowing release of the released gas to atmosphere communicate with the evacuation cavity.
REFERENCES:
patent: 2851768 (1958-09-01), Ellis
patent: 3840967 (1974-10-01), Olson
patent: 5188155 (1993-02-01), Kremer
patent: 5421380 (1995-06-01), Campbell
patent: 5469898 (1995-11-01), Campbell
Douglas Steven O.
Recla Henry J.
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