Title:
A RHEOMETER
Document Type and Number:
WIPO Patent Application WO2007149435
Kind Code:
A8
Abstract:
A rheometer die with a groove configuration for reducing sample slippage in a rheometer chamber is provided. The rheometer die includes a surface and at least one radial groove extending into the surface. The groove defines at least a portion of a sample-holding chamber constructed to hold a sample. The groove may include a first zone and a second zone with a transition zone therebetween. The groove may also include a substantially wedge-shaped portion with sidewalls which taper generally towards the center of the rheometer die such that imaginary extensions of the sidewalls intersect before reaching the center of the die. A plurality of grooves may extend into the rheometer die. The rheometer die may be incorporated into a rheometer for testing process characteristics of a material.
Inventors:
GROW ANDREW (US)
PAWLOWSKI HENRY (US)
BUZEK KEITH (US)
PAWLOWSKI HENRY (US)
BUZEK KEITH (US)
Application Number:
PCT/US2007/014279
Publication Date:
March 20, 2008
Filing Date:
June 18, 2007
Export Citation:
Assignee:
ALPHA TECHNOLOGIES SERVICES LL (US)
GROW ANDREW (US)
PAWLOWSKI HENRY (US)
BUZEK KEITH (US)
GROW ANDREW (US)
PAWLOWSKI HENRY (US)
BUZEK KEITH (US)
International Classes:
G01N11/16; G01N11/14
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