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1. (WO1999007631) ONE-PIECE CORE PLUG

Pub. No.:    WO/1999/007631    International Application No.:    PCT/US1998/016234
Publication Date: Fri Feb 19 00:59:59 CET 1999 International Filing Date: Wed Aug 05 01:59:59 CEST 1998
IPC: B65H 75/18
Applicants: DOUBLE E COMPANY, INC.
Inventors: VAN DEURSE, Michael
Title: ONE-PIECE CORE PLUG
Abstract:
A core plug (10) includes a tube (14) formed from a light-weight material, such as woven carbon fibers, inserted into and connected to a steel rib assembly. The rib assembly includes a series of ribs (12) surrounding the tube (14), where each rib (12) includes a beam (18) parallel to the tube (14) and columns (20, 22, 24) connecting the beams (18) to the tube (14). The tube (14) can extend the complete length of the rib assembly or the rib assembly can extend beyond the end of the tube (14). A high molecular weight journal (16) is inserted in the outer end of the tube (14).