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:
Jun. 05, 1990
Filed:
Jan. 23, 1989
Paul L Peelman, Eau Claire, WI (US);
Edward A Malosh, Chippewa Falls, WI (US);
Amoco Corporation, Chicago, IL (US);
Abstract
An apparatus and process for producing tubular film from thermoplastic molten material including a tubular housing having an axially-aligned interior defined inner surface, an elongated member including an outer surface disposed within the inner surface of the housing and spaced therefrom providing a passageway, and an alignment member having a plurality of annularly-spaced feed ports defining an inside surface, the alignment member securely connecting the elongated member to the housing, wherein the inner surface of the housing, the outer surface of the elongated member and the plurality of annularly-spaced feed ports define an annular-axially aligned passageway for allowing a balanced flow of thermoplastic material therethrough.