Yarn carrier with anti-nesting rib

Details Yarn carrier with anti-nesting rib Yarn carrier with anti-nesting rib

1989-05-15

1990-08-21

Gilreath, Stanley N.

Winding, tensioning, or guiding

Bobbin or spool

Cop-tube type

24211832, B65H 7510

Patent

active

049499130

ABSTRACT:
A frusto-conical yarn carrier of the type characterized by having a relatively small diameter end, a relatively large diameter end, an outer wall and a smooth, uninterrupted inner wall parallel to the outer wall whereby a plurality of like yarn carriers can be nested together for storage and shipment. The improvement comprises a projection such as an annular rib on one of the inner or outer wall of the cone for contacting the other of the inner or outer wall of a like yarn carrier into which the yarn carrier is nested and creating a non-parallel relationship between the adjacent walls for reducing surface contact between adjacent yarn carriers and thereby permitting easier separation from nesting relationship.

REFERENCES:
patent: 3033489 (1962-05-01), Morris
patent: 3138345 (1964-06-01), Luber
patent: 3141631 (1964-07-01), Krebs
patent: 3361381 (1968-01-01), Livingstone
patent: 3675871 (1972-07-01), Heyden
patent: 3900168 (1975-08-01), Hamilton

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