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AssigneeTannas Co.
InventorsPatrick T. O'Dell, Gregory C. Miiller, Theodore W. Selby, Robert H. Seer
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Low heat-transmissible spindle for rotary viscometry includes an elongate, radially balanced, straight shaft made of a suitably stiff material having a low heat-transmission value, with a head monolithic with the shaft which can contact and interface with a test fluid to yield drag from the contact and interface when the spindle is rotated in the fluid; and a spindle coupling nut attached to the shaft opposite the head. For example, the shaft may be made of a woven glass fabric cylinder laminated with a synthetic resin, and the head made of stainless steel. A rotary viscometer can be equipped with the spindle, and fluid viscosity can be determined by employing the same in a rotary viscometric protocol, for example, ASTM D 2983.
A low heat-transmissible spindle for rotary viscometry comprising an elongate, radially balanced, straight shaft made of a suitably stiff material having a low heat-transmission value, a viscosity sensing section monolithic with the shaft which can contact interface with a test fluid to yield drag from the contact and interface when the spindle is rotated in the fluid;
A rotary viscometer equipped with a low heat-transmissible spindle for rotary viscometry comprising:
A method of determining fluid viscosity comprising providing a rotary viscometer equipped with a low heat-transmissible spindle for rotary viscometry, said spindle including an elongate, radially balanced, straight shaft made of a suitably stiff material having a low heat-transmission value, a viscosity sensing section monolithic with the shaft which can contact interface with a test fluid to yield drag from the contact and interface when the spindle is rotated in the fluid;
Dependencies are inferred from the claim text.