Apparatus for making a web from fibers

Textiles: fiber preparation – Working – Carding

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

191457, 19240, 19300, D01G 1540

Patent

active

045205310

ABSTRACT:
An apparatus for making a web of fibers has an upright and horizontally elongated supply duct having an upper end, an open lower end, and a foraminous side wall. Fibers are fed to the upper end of the supply duct so that they descend in this duct as a ribbon-shaped web. An upright and horizontally elongated forming duct has an upper end receiving the fiber web from the supply duct, a lower end, and a foraminous side wall. Gas is made to flow down in the ducts and through the foraminous side walls thereof to shape the web and advance it to the respective lower ends. Rollers are provided at the lower end of the forming duct for withdrawing the web therefrom. One or more sensors measure the thickness of the web at a plurality of sensing locations spaced transversely along the web downstream of the lower end of the forming duct. Respective individually operable flow-adjusting means can vary the gas flow in one of the ducts at respective zones spaced transversely across the web like the sensing locations. A controller is connected between the detecting and adjusting units for varying the flow in accordance with the detected thickness.

REFERENCES:
patent: 3973291 (1976-08-01), Kolbach
patent: 4161052 (1979-07-01), Erben
patent: 4271565 (1981-06-01), Grunder
patent: 4280251 (1981-07-01), Ludwig
patent: 4394790 (1983-07-01), Keller et al.
patent: 4404710 (1983-09-01), Wood
patent: 4414710 (1983-11-01), Bolen

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus for making a web from fibers 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 making a web from fibers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for making a web from fibers will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-821610

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.