Title: Device for the opening and conveyance of freshly cut staple fiber bundles

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Claims: What is claimed is:

1. Apparatus for opening and conveying freshly cut staple fibers comprising a radial blower having its suction opening attachable in close proximity to the cutting zone of a tow staple cutting apparatus, said radial blower having a blade type rotor, the blades of the rotor being spaced from the inner housing surface of the blower adjacent the cutting zone a distance at least one half the effective knife length of the staple cutting unit.

2. The apparatus of claim 1 wherein the spacing between the inner housing surface of the blower and the rotor blades is at least 0.8 times the effective knife length and not less than 5 to 8 millimeters.

3. The apparatus of claim 1 wherein the rotor blades are made of a readily elastically deformable material.

4. The apparatus of claim 3 wherein the blades are made from the materials group consisting of polyvinyl chloride, rubber, and polyurethane.

5. The apparatus of claim 1 wherein the rotor is coated with polytetrafluoroethylene.

6. The apparatus of claim 1 wherein the inner housing surface and rotor of the blower are coated with polytetrafluoroethylene.

7. The apparatus of claim 1 in which the effective knife length is between 0.7 to 1.2 times the hydraulic diameter D.sub.H.

Other info:

Inventors: Kayser, Hans Dieter (Sulzbach, DT)
Dindorf, Wilhelm (Obernburg, DT)

Application Number: 651088
Filing Date: 1976-01-21
Publication_date: 1976-10-12
Assignee: Akzona Incorporated (Asheville, NC)
Primary Class(es): 83/100 83/346, 83/913
Other Classes:
US Patent Ref:

2607418	Aug, 1952	Hebeler	83/913.
3915042	Oct, 1975	Laird	83/913.
3948127	Apr, 1976	Vehling et al.	83/100.

Other Refs:
Primary Examiner: Yost, Frank T.
Assistant Examiner:
Attorney: Young; Francis W., Vestal; Tom R.