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US 2012/0234081 A1Published application
Controlled stress extensional rheometer
OwnerJoao Maia, Ricardo Andrade +1inventors
InventorsJoao Maia, Ricardo Andrade, Patrick Harris
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Abstract
An apparatus or rheometer for determining the extensional properties of a material having first and second ends includes first and second rollers gripping the first end of the material. Third and fourth rollers grip the second end of the material. An input shaft rotates the first, second, third and fourth rollers to pull the first and second ends of the material in opposite directions to stretch the material.
Claims22
An apparatus for determining the extensional properties of a material having first and second ends comprising:
- first and second rollers for gripping the first end of the material;
- third and fourth rollers for gripping the second end of the material;
- an input shaft for rotating the first, second, third and fourth rollers to pull the first and second ends of the material in opposite directions to stretch the material;
Dependencies are inferred from the claim text.