Plug for wrapped sleeves of paper or cardboard

Details Plug for wrapped sleeves of paper or cardboard Plug for wrapped sleeves of paper or cardboard

1988-03-24

1990-12-18

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

138 44, 138 96R, 138109, 138110, 138178, 242 686, 206413, 206416, F16L 1112, B65H 7518

Patent

active

049779303

ABSTRACT:
A plug for plugging wrapped sleeves of paper or cardboard includes a hollow rotation-symmetrical body one half of which is cylindrical and another part of which is frusto-conical. The outer edge or rim of the cylindrical part is provided with a thickening which continually increases towards the end face of the plug.

REFERENCES:
patent: 3547367 (1970-12-01), Brazeole et al.
patent: 3567146 (1971-03-01), Arenson
patent: 3627220 (1971-12-01), Vogel
patent: 3840194 (1974-10-01), Vetter
patent: 3865326 (1975-02-01), Beaudoin
patent: 4279275 (1981-07-01), Stanwood et al.
patent: 4372500 (1983-02-01), Saraisky

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