Wide range dynamic rheometer

Details Wide range dynamic rheometer Wide range dynamic rheometer

2005-08-23

2005-08-23

Larkin, Daniel S. (Department: 2856)

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Viscosity

C073S054020, C073S054330

Reexamination Certificate

active

06931915

ABSTRACT:
A rheometer includes a holder assembly for coupling a test specimen to a motor assembly to effect rotational strain in the test specimen while enabling the determination of axial displacement effected by the test specimen normal to the direction of the rotational strain, the holder assembly having a first member coupled to the test specimen, a second member coupled to the motor assembly, and a suspension arrangement coupling the first member with the second member for simultaneous maximum resistance to relative rotational displacement between the first and second members and minimum resistance to relative axial displacement between the first and second members. Information pertaining to the axial displacement, and to the temperature of the test specimen, is obtained through measuring circuits which include sensors placed in moving component parts of the rheometer and is delivered to an external processor through information transmission systems which include an induction arrangement for transmitting the information while maintaining the desired minimum resistance to the relative axial displacement. Power is delivered to the measuring circuits through a power transfer system which includes a similar induction arrangement.

REFERENCES:
patent: 4501155 (1985-02-01), Garritano
patent: 4601195 (1986-07-01), Garritano
patent: 5520042 (1996-05-01), Garritano et al.

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