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US 7,111,499 B2Granted
Viscometer tube
AssigneeThe Fluid Life Corporation
InventorJeff A. Keen
Life of this patent
Estimating the term…
Abstract
A viscometer tube includes a tubular body divided into three sections: an upper feed section, a lower capillary section and an intermediate transition section providing a transition between the upper feed section and the lower capillary section. Liquid flows from the upper feed section to the intermediate transition section and then to the lower capillary section. The upper feed section intersects the intermediate transition section either laterally or from below. An upper remote end of the intermediate transition section is open to atmosphere.
Claims8
A viscometer tube, comprising:
- a tubular body divided into three sections:
- an upper feed section, a lower capillary section and an intermediate transition section providing a transition between the upper feed section and the lower capillary section, liquid flowing from the upper feed section to the intermediate transition section and then to the lower capillary section;
- the upper feed section intersecting the intermediate transition section either laterally or from below;
- and
- an upper remote end of the intermediate transition section being open to atmosphere.
2 more elements
A viscometer tube, comprising:
- a tubular body divided into three sections:
- an upper feed section, a lower capillary section and an intermediate transition section providing a transition between the upper feed section and the lower capillary sections, liquid flowing from the upper feed section to the intermediate transition section, and then to the lower capillary section;
- the upper feed section being “J” shaped and intersects the intermediate transition section from below;
- an upper remote end of the intermediate transition section being open to atmosphere;
- the intermediate transition section being inclined to initiate gravity flow;
- and
- the lower capillary section being straight with a first portion of a first internal diameter and a second portion of a second internal diameter, which is smaller than the first internal diameter.
4 more elements
Dependencies are inferred from the claim text.