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. 21, 2015
Filed:
Aug. 18, 2009
Sadao Ikeda, Toyota, JP;
Takashi Nagase, Nisshin, JP;
Sadao Ikeda, Toyota, JP;
Takashi Nagase, Nisshin, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
There are provided screw segmentsthat are capable of shearing and kneading feedstock without causing plugs within a cylinderof a screw extruder, and of extruding it from the cylinder. The screw segmentseach comprise a shaft partto be affixed to a screw shaft, and a tooth partthat protrudes radially outward from the shaft part. The tooth partcomprises a tooth surfacethat is formed on the front side relative to the rotation direction of the screw shaft, and that is so sloped as to transition gradually forward relative to the rotation direction as it transitions radially outward from the shaft part