Ultrafab, Inc.

Richard T Arvidson

Alan J Demello

Alexander Z Chernyak

Grant E Wylie

Mark A Rogers

Filamentary materials, such as yarn (), is wound a frame (), provided by pairs of movable filaments or wires (), about which the end of the spindle () rotates provides the turns () of the winding as the article having the winding is moved along a process path. Mechanically or hydraulically actuated pins () support the winding frame in a fixed position. The filaments of the frame may be provided by laterally spaced pairs () of filaments of weldable material.

Apparatus and methods for making pile articles and improved pile articles made therewith

Apparatus and method for making pile articles and improved pile articles made therewith

In order to make weather seals from closed cell elastomer foam material, molten plastic is extruded over a substrate of the foam material. Surface reactions during extrusion are avoided by continuously pulling the substrate through an oven chamber to degas (and remove moisture from) the material at least on its outside to a limiting thickness of the order of 10-30 mil to form a skin or crust. The extrusion of the over-coating is carried out to form a sleeve while the substrate is still hot. Since the skin is a degassed region on the outside of the foam substrate, reactions which may cause blistering and prevent the extrusion of a smooth and firmly adhering skin are avoided. The substrate material is preferably a thermosetting EPDM rubber closed cell foam, and the over coating material is a thermoplastic elastomer (TPE).

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Fairport, NY, United States of America

Richard T Arvidson