B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 90/34 (2006.01) B60P 3/22 (2006.01)
Patent
CA 2239628
An elongate tubular stack is pivotally connected by a swivel elbow with the vent line leading from a vacuum/blower pump connected with the tank of a vacuum truck. The stack is positioned to extend alongside the tank. A hydraulic cylinder assembly is connected to the stack for raising and lowering it between horizontal transport and vertical venting positions. When the vacuum truck is taking on crude oil into the tank, H2S-containing gas is vented through the raised stack. When the truck is travelling, the stack is lowered to the horizontal position.
Angeltvedt Kelvin
Johnson Ernest Peter
LandOfFree
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