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:
Apr. 24, 2001
Filed:
Nov. 25, 1998
Applicant:
Inventors:
Ronald E. Kieras, Woodstock, IL (US);
John J. Rhoades, Poplar Grove, IL (US);
Assignee:
Thatcher Tubes LLC, Woodstock, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 6/506 ; B29C 6/502 ; B29C 6/900 ; B29C 4/308 ; B29C 4/358 ; B29C 5/360 ; B29C 5/710 ; B29C 6/108 ;
U.S. Cl.
CPC ...
B29C 6/506 ; B29C 6/502 ; B29C 6/900 ; B29C 4/308 ; B29C 4/358 ; B29C 5/360 ; B29C 5/710 ; B29C 6/108 ;
Abstract
A method for manufacturing thermoplastic tubes from hollow thermoplastic sleeves by a variety of different manufacturing processes. The machine used in the method is a single apparatus having an indexing device with a plurality of mandrels for holding hollow thermoplastic sleeves for the purpose of transporting the same around a closed manufacturing path. The method involves advancing sleeves around the closed manufacturing path to form tubes from the sleeves.