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US 6,332,474 B1Granted
Method for collecting a viscous and sticky material
AssigneeDisab Vacuum Technology AB
InventorsKarl T. Haugen, Gert Lövgren
Life of this patent
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Abstract
When collecting a crude oil material or a similar highly viscous and sticky material, a lubricating fluid is supplied and vacuum is applied.
Claims3
A method for collecting a highly viscous and sticky crude oil material from a tank, in which method a fluid is supplied to the material and vacuum is applied, characterized in that
- a lubricating fluid in the form of waste oil which is not crude oil
- is supplied to the crude oil material adjacent to an inlet of collecting equipment, and
- that the waste oil is sucked through a collecting duct together with the crude oil material for the purpose of preventing adhesion to the collecting equipment.
Use of a waste oil when collecting a highly viscous and sticky crude oil material from a tank, for the purpose of preventing adhesion between the crude oil material and collecting equipment.
Dependencies are inferred from the claim text.