Apparatus for vacuum spinning

Details Apparatus for vacuum spinning Apparatus for vacuum spinning

1984-12-03

1987-12-22

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

With drafting

57 5, 57224, 57331, 57333, 57334, 57341, 57400, D01H 528, D01H 112, D02G 106

Patent

active

047139315

ABSTRACT:
Vacuum spun yarn is produced that has strength property approaching that of ring spun yarn, and significantly greater than air jet spun yarn, and may be produced at speeds greatly in excess of production speeds for ring spun yarn. An elongated hollow shaft has a through-extending passageway from a first end to a second end thereof, with a portion of the shaft adjacent the first end being perforated (e.g. four equally spaced perforations). The perforations shaft in the direction of the second end from the through-extending passageway, and a generally spherical vacuum reservoir is formed in the shaft in communication with the passageway and perforations. The portion of the passageway between the shaft first end and the vacuum reservoir is significantly larger in cross-sectional dimension than the portion of the passageway from the vacuum reservoir to the second end of the shaft. A diffuser, in the form of a collar having elongated slots corresponding to the perforations, surrounds the shaft, and an annular opening is provided between the interior of the diffuser collar and the exterior of the shaft. The shaft is rotated about an axis at a constant high speed, and a vacuum is applied to the exterior of the shaft so that at least some of the fibers or free ends of fibers passing through the shaft will draw toward the shaft perforations, and will be caused to rotate with the shaft as fibers move generally linearly along the axis of rotation of the shaft. Formed yarn, having the desired properties, is withdrawn from the second end of the shaft.

REFERENCES:
patent: 3079746 (1963-03-01), Field, Jr.
patent: 3757507 (1973-09-01), Maxham
patent: 3802174 (1974-04-01), Landwehrkamp et al.
patent: 3978648 (1976-09-01), Yamagata et al.
patent: 4183202 (1980-01-01), Morihashi
patent: 4265082 (1981-05-01), Sasaki et al.
patent: 4322944 (1982-04-01), Sraitr et al.
patent: 4507913 (1985-04-01), Morrison
patent: 4509321 (1985-04-01), Kajita et al.

Affiliated with

Also associated with

Rating

Apparatus for vacuum spinning does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for vacuum spinning, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for vacuum spinning will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-812475