The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 26, 1977
Filed:
Dec. 24, 1974
Yoshio Inaba, Tsuruga, JA;
Takashi Hisagi, Tsuruga, JA;
Toyobo Co., Ltd., , JA;
Abstract
A vertical underwater type pelletizer-cutter apparatus utilizing a hydraulic suction force for pelletization of thermoplastic polymers comprising a nozzle portion having a plurality of nozzles through which a thermoplastic polymer in a melt state is extruded in strands, an injector portion having a plurality of injectors through which the strands are introduced with water, a cooling portion comprising a plurality of guide tubes through which the strands pass together with said water which cools and solidifies the same and a cutter portion which cuts the cooled and solidified strands into pellets, wherein means are provided for monitoring the pressure at the space in the upper part of the guide tube and for automatically stopping the extrusion of the thermoplastic polymer when the monitoring means detects an abnormal reduction in the pressure.