Core plug apparatus

Details Core plug apparatus Core plug apparatus

1993-11-15

1996-05-07

Nguyen, John Q.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

24211831, 215355, 220356, B65H 7508, B65D 3900, B65D 4308

Patent

active

055138209

ABSTRACT:
A core plug apparatus includes an outer wall, an inner hub, a middle strengthening ring, and a plurality of interconnecting vanes. A vacuum seal wall covers one end of the plug to enable a vacuum lift force to be generated at one end of the roll of material. The vacuum seal wall includes a relatively thin central portion which can be displaced to allow the roll to be installed on a pair of mandrels, or to transport the roll using a rod extending from a lift device. The outer surface of the core plug may be textured to further increase frictional forces between the core plug and the inside wall of the core.

REFERENCES:
patent: 3627220 (1971-12-01), Vogel
patent: 3627221 (1971-12-01), Nichols et al.
patent: 4083508 (1978-04-01), Pattillo
patent: 4372500 (1983-02-01), Saraisky
patent: 4875636 (1989-10-01), Kewin
patent: 4977930 (1990-12-01), Munk et al.
4 color photographs of a solid core plug made of compressed wood chips manufactured by Moldwood Products of York, Alabama (Date Unknown).

Affiliated with

Also associated with

Rating

Core plug apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Core plug apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Core plug apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1221917