Apparatus for producing annular fiber aggregate

Details Apparatus for producing annular fiber aggregate Apparatus for producing annular fiber aggregate

1990-03-06

1991-10-22

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means applying electrical or wave energy directly to work

Electro-static or inductive field

162192, 264 24, 264108, 4251748E, 425456, B29C 3508, B29C 4116

Patent

active

050591070

ABSTRACT:
An apparatus for producing annular fiber aggregate includes: a container including an inner cylinder and an outer cylinder disposed concentrically, whereby forming an upright cylindrical space between the inner cylinder and the outer cylinder; at least a pair of positive electrode and negative electrode disposed by turns and buried in the wall of the outer cylinder, parallely with respect to the axis of the upright cylindrical space; a filter member disposed at the lower portion of the upright cylindrical space; and a voltage applicator connected to the positive electrodes and the negative electrodes. Since the apparatus has the positive and negative electrodes buried in the wall of the outer cylinder, the fibers are hardly disturbed and lifted by the positive and negative electrodes even when the positive and negative electrodes are rotated relatively around the axis of the upright cylindrical space. Thus, a fiber aggregate can be obtained in which the fibers are oriented in the peripheral tangent direction uniformly and favorably, and the strength thereof in the direction perpendicular to the peripheral tangent direction has been further enhanced.

REFERENCES:
patent: 3843756 (1974-10-01), Talbott et al.
patent: 4752202 (1988-07-01), Gomi et al.
patent: 4786366 (1988-11-01), Ito et al.
patent: 4814127 (1989-03-01), Toyoda
patent: 4826569 (1989-05-01), Ito et al.
patent: 4938844 (1990-07-01), Ito et al.

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