Sound absorbent fabric sleeves
AssigneeDavlyn Manufacturing Co., Inc.
InventorGary L. Flasher
Life of this patent
Estimating the term…
Abstract
Sound absorbent fabric sleeves are formed from interthreaded, preferably braided, resilient, staple spun polymer yarns. Bulk and softness needed for sound absorption is provided through the staple fibers and resiliency desired for expansion capability and shape maintenance is provided through a resilient monofilament core. The yarns are sometimes referred to as dref mono/poly yarns. The sleeves can be heat set to better resist unraveling and maintain tubular shape. The yarns inherently resist fraying. A pressure sensitive or other adhesive layer or an elastomeric material or other material layer can be provided around all or part of the outsides of the sleeves. Spring clips can be provided extending through the tubes between the yarns to assist in mounting the sleeves or to modify them for uses other than sound absorption.
Claims14
A sound absorbent fabric sleeve comprising a plurality of individual, resilient, staple spun polymer yarns interthreaded together into a seamless fabric tube, each of said resilient, staple spun polymer-yarns comprising a polymer monofilament core having a diameter of at least six mils wrapped with staple polymer filaments, each of said staple polymer filaments being more than an order of magnitude smaller in diameter than said polymer monofilament core, and each of said resilient, staple spun polymer yarns being between a 5 and a 0.5 cotton count.
Dependencies are inferred from the claim text.