Open end friction spinning device for production of a yarn or th

Details Open end friction spinning device for production of a yarn or th Open end friction spinning device for production of a yarn or th

1987-11-12

1990-02-20

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57415, D01H 7882, D01H 7885

Patent

active

049015184

ABSTRACT:
The wall of the friction spinning element has bores or holes with a predeterminate bore diameter and a coating on their side facing a fiber feed duct, the coating extending over the bore edges into the bores. Each bore or hole thus formed has a diameter at the bore or hole entrance or inlet which is smaller than the bore diameter of the related bore or hole. Each bore or hole has a cross-sectional area of less than 0.283 mm.sup.2, but amounting to at least 0.07 mm.sup.2. In this way, the undesirable penetration of fibers or fiber parts into the bores or holes is prevented as far as possible when air flows through the bores or holes at the side of the coating, while retaining a hole form or configuration which is favorable from the standpoint of airflow and blockage of the bores or holes.

REFERENCES:
patent: 3798136 (1974-03-01), Olsen et al.
patent: 4281507 (1981-08-01), Didek et al.
patent: 4315398 (1982-02-01), Parker et al.
patent: 4358922 (1982-11-01), Feldstein
patent: 4358923 (1982-11-01), Feldstein
patent: 4372109 (1983-02-01), Farnhill et al.
patent: 4628679 (1986-12-01), Stalder et al.
patent: 4660371 (1987-04-01), Stalder
McGraw-Hill Encyclopedia of Science & Technology; 5th Edition; "Metal Coatings", pp. 398-399; 1982.

Affiliated with

Also associated with

Rating

Open end friction spinning device for production of a yarn or th does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Open end friction spinning device for production of a yarn or th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Open end friction spinning device for production of a yarn or th will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1607500