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:
Dec. 13, 1988
Filed:
Jun. 30, 1987
Satoshi Fukamachi, Shizuoka, JP;
Kenichi Mitsui, Ichinomiya, JP;
Kunihiro Matsuo, Inazawa, JP;
Kazumi Korenaga, Ichinomiya, JP;
Toyoda Gosei Co., Ltd., Nishikasugai, JP;
Abstract
In an apparatus for manufacturing a reinforced hose, a reinforcing layer-forming device is arranged so as to be concentric with the material efflux port of an outer tube extruder and an inner tube extruder so that inner tube formation, the reinforcing layer formation and the outer tube extruding can be performed continuously and nearly at the same time on a torpedo projected beyond the top end of an inner die of the inner tube extruder. A plurality of extrusion passages into which screws of the extruder is inserted are formed in a cylinder of the inner tube extruder along the extended axial line of an inner head for investing an inner tube of the reinforced hose with a multi-layer structure.