E.i. Dupont De Nemours and Company

Gary L Caldwell

Joshua Benin

David A Wilson

James F McKinney

Jerzy Spolnicki

Ramunas L Valteris

William M Ollinger

Leslie E Jones

Gang Jin

Patrick W Powell, Deceased

Charles S Huffer

Francis A Heckendorf, Jr

George W Goldman

A spinning cell for dry spinning spandex by extruding filaments from a nonuniform array of spinneret capillary groups in a rectangular bar and contacting them with a cross-flow of hot, inert gas is provided.

Spinning cell and method for dry spinning spandex

A mixing lid with a pouring device for containers used on stirring machines includes an integral one piece slidable closure for a pouring spout and has a first rearward opened pouring position and a second forward closed sealed position. A removably secured front slide closure plate is provided for closing the spout in the second forward closed position. The slidable closure includes a rear rocker engagement member. An operating lever has front and rear ends and is pivotally mounted on the lid intermediate the ends thereof. The lever includes manual press portion on the rear end and a rocker on the front end engageable with the rocker engagement member. A retaining spring engageable with the integral one piece slidable closure and the removably secured front slidable closure plate is provided for maintaining the removably secured slidable closure plate in contact with the pouring spout when the integral one piece slidable closure is in the first and second positions. A tension spring connects the lid with the integral one piece slidable closure for maintaining the one piece slidable closure in the second closed position.

Mixing lid including a pouring device for containers used on stirring

An apparatus for quenching synthetic filaments which comprises an elongated chimney, a porous open-celled foam sheet, dividing said chimney longitudinally into a plenum chamber and a quenching chamber through which filaments pass in a path from an extrusion device to a means for collecting filaments and a means to supply a flow of gas to the plenum chamber. The improvement comprises a mesh screen coextensive with the foam sheet positioned between the foam sheet and the quenching chamber.

Plate, foam and screen filament quenching apparatus

Growing community of inventors

Ashville, NC, United States of America

Gary L Caldwell