Uster Technologies Ag

Uster Technologies,

James T Wender

Hossein M Ghorashi

Michael E Galyon

Youe-Tsyr Chu

Preston S Baxter

C Roger Riley

Joe H Mansfield

Youe T Chu

Muhammad Imran Sharafat

A loading station for forming a fiber mass for micronaire testing. The loading station has a hopper for receiving an unformed fiber mass. A forming chamber receives the unformed fiber mass from the hopper. The forming chamber includes a non-movable back wall and a non-movable bottom plate with ports formed therein. The ports draw an airflow from the hopper into the forming chamber. A selectively movable isolation plate isolates the forming chamber from the hopper, and a selectively movable horizontal forming wall horizontally compacts the fiber mass into a desired horizontal cross-section. A selectively movable vertical forming wall vertically compacts the fiber mass into a desired vertical cross-section. A selectively movable plunger presses axially along the shaped fiber mass.

Loading station for micronaire testing

A fiber testing instrument having a fiber loading station that is sized to accommodate a fiber sample within a desired size range, a fiber extraction device for extracting a portion of the fiber sample for a first battery of fiber tests, a fiber transport device for conveying at least the remaining portion of the fiber sample, and a micronaire chamber for receiving the conveyed fiber sample, where the micronaire chamber is sized to test any fiber sample within the desired size range.

Auto micronaire

A method of determining a testing volume for a micronaire measurement by containing a fiber sample within a micronaire chamber having a length and at least one movable end wall. A flow is initiated along the length of the micronaire chamber. The fiber sample is compressed within the micronaire chamber by advancing the movable end wall, and the advancement of the movable end wall is stopped when at least one property of the flow attains a set point. The position of the movable end wall defines the testing volume. In this manner, there is provided a convenient method of setting a testing volume and acquiring the information needed to take a micronaire measurement.

Micronaire measurement

A fiber sample conditioning system having a comb for engaging and retaining fibers to form a beard, and at least two rotating brushes for brushing the fibers simultaneously from opposite sides of the beard in a direction along the fibers away from the comb.

Dual opposing fiber brushing

A fiber testing station. Electrically conductive first fiber retaining means engage first ends of fibers, where the fibers extend in substantially one direction from the first fiber retaining means to distal second ends of the retained fibers. The first fiber retaining means are electrically isolated from the fiber testing station. First length measurement means measure first relaxed lengths of the retained fibers between the first fiber retaining means and the second ends of the retained fibers. Electrically conductive second fiber retaining means engage the second ends of the retained fibers. The second fiber retaining means are electrically isolated from the fiber testing station. Moisture measurement means take electrical measurements along the retained fibers between the first fiber retaining means and the second fiber retaining means, and thereby determine a moisture content of the retained fibers. Tension means pull the first fiber retaining means and the second fiber retaining means away from one another, and thereby stretch the retained fibers until the retained fibers break at a fracture point.

Growing community of inventors

Seymour, TN, United States of America

James T Wender