Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1988-02-10
1989-04-18
Levy, Stewart J.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
15 4, 425225, G01N 1100
Patent
active
048215767
ABSTRACT:
In an automatic cleaning device for use in the thermoplastics extrusion plastometer including a piston cleaning unit, a conveying unit, a cylinder cleaning unit and a die cleaning unit. The piston cleaning unit cleans the surface of the piston at plasticity testing positions. The conveying unit moves the cylinder from the plasticity testing position to a cylinder cleaning position and to a die cleaning position. The cylinder cleaning unit cleans the interior surface of the cylinder at a cylinder cleaning position. Finally, the die cleaning unit cleans the interior surface of the die at the die cleaning position.
REFERENCES:
patent: 4255109 (1981-03-01), Emmerich et al.
Iwata Hiromu
Miura Yashuhiro
Levy Stewart J.
Simons Michele
Sumitomo Chemical Company Limited
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