Opening roller unit of an open-end spinning device

Details Opening roller unit of an open-end spinning device Opening roller unit of an open-end spinning device

2005-03-15

2005-03-15

Calvert, John J. (Department: 3765)

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

C057S400000, C057S412000

Reexamination Certificate

active

06865876

ABSTRACT:
A generally cylindrical opening roller unit of an open-end spinning device includes a unitary ring body having card clothing formed of at least one helical groove formed in the ring body, at least one helical ridge between courses of the groove, and saw teeth defined by transverse cuts on the ridge. The roller unit also includes an integrated annular collar that is at least codiametric with the teeth in order to protect the teeth. An integral transition area between the card clothing and the annular collars eliminates the problem of a tooth gap.

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German Search Report.

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