Two-piece end plug for insertion into an end of a paper roll

Details Two-piece end plug for insertion into an end of a paper roll Two-piece end plug for insertion into an end of a paper roll

2006-11-06

2008-10-07

Langdon, Evan H (Department: 3654)

Winding, tensioning, or guiding

Coil holder or support

Mounted coil holder or spindle

C242S599400

Reexamination Certificate

active

07431236

ABSTRACT:
An end plug (1) for insertion into an end of a paper roll includes an inner (2) and an outer piece (3), the pieces being rotatably attached to each other and prevented from axial movement in relation to each other by at least one protrusion (6) of one of the pieces running in an annular groove (7) in the other of the pieces. A method of manufacturing such an end plug is also disclosed.

REFERENCES:
patent: 3997124 (1976-12-01), Sato
patent: 4015711 (1977-04-01), Mason
patent: 4372500 (1983-02-01), Saraisky
patent: 4600162 (1986-07-01), Hidle
patent: 4659031 (1987-04-01), Saraisky
patent: 5577686 (1996-11-01), Moody
patent: 5597135 (1997-01-01), Vandersteene
patent: 5755397 (1998-05-01), Freese
patent: 0 705 556 (1996-04-01), None

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