Fluent material handling – with receiver or receiver coacting mea – Processes – Gas or variation of gaseous condition in receiver
Patent
1988-06-16
1989-10-10
Recla, Henry J.
Fluent material handling, with receiver or receiver coacting mea
Processes
Gas or variation of gaseous condition in receiver
141 59, 141 65, 73 492, B65B 3104
Patent
active
048724904
ABSTRACT:
A wand having a length of flexible hose extending therefrom is inserted within an underground fluid filled storage tank. Through actuation of a propulsion system, the wand is directed to a suspected vapor pocket within the tank and temporarily retained in place by floatation. An evacuating pump draws in the vapor through inlets at the extremity of the wand and through the trailing hose to reduce or eliminate the vapor pocket within the tank. Upon elimination of the vapor pocket to a practical extent, the hose and attached wand are withdrawn from the tank.
REFERENCES:
patent: 643605 (1900-02-01), Pendergraft
patent: 2581914 (1952-01-01), Darrow
patent: 2598441 (1952-05-01), Risser
patent: 3016928 (1962-01-01), Brandt
patent: 4505308 (1985-03-01), Walker et al.
patent: 4566504 (1986-01-01), Furrow et al.
Tank System Tightness Tester, Service Tool Division Pamphlet 3/23/70.
Recla Henry J.
Vaporless Manufacturing Inc.
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