Press bobbin for yarn treatment

Details Press bobbin for yarn treatment Press bobbin for yarn treatment

1987-05-15

1988-01-19

Gilreath, Stanley N.

Winding, tensioning, or guiding

Bobbin or spool

Open-work structure

B65H 7520

Patent

active

047200570

ABSTRACT:
A press bobbin for yarn treatment formed of a cylindrical wall which is fabricated by blow molding of a synthetic plastic and comprises relatively thin-gage zones and relatively thick-gage zones extending circumferentially and alternately arranged in the axial direction of the bobbin. The cylindrical wall defines an indentation configuration along the axial direction wherein the thin-gage zones correspond to projecting portions and the thick-gage zones to recessed portions. The thick-gage zones are defined with holes for passage of liquid and the thin-gage zones are, when pressed axially, bendable in a U-form to protrude outwardly, thereby to be axially compressible. The relatively thick-gage zones may be provided with reinforcing members which serve to suppress compression of the bobbin.

REFERENCES:
patent: 3471102 (1969-10-01), Inouye et al.
patent: 3827652 (1974-08-01), Burchette, Jr.
patent: 4108396 (1978-08-01), Engel
patent: 4270710 (1981-06-01), Ono
patent: 4454734 (1984-06-01), Marquis et al.

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