Maytag Corporation

Other

Gary T Davis

Thu-Ha Duncan

Russell E Caswell

Wire grate for a cooking appliance

An abrasion resistant slide fastener includes a coupling element attached to a support tape by stitching looper and needle threads to secure the coupling element and a filler cord, extending through the coupling element, to a support tape. The looper thread has an upper portion which engages an upper shank of the coupling element and a lower portion which engages the needle thread within the filler cord. The needle thread is stitched at a greater tension than the looper thread and secures the looper thread, the coupling element and the filler cord to the support tape. The upper portion of the looper thread, engaging the upper shank, is heated until it melts from the upper shank of the coupling element, thus eliminating the looper thread exposed to wear and forming anchor portions which engage the filler cord. The needle thread and the lower portion of the looper thread are not directly exposed to the heat source and remain substantially intact within the filler cord. The anchor portions are drawn toward the interior of the filler cord due to the greater tensioning of the needle thread, which secures the coupling element to the support tape and produces an abrasion resistant slide fastener.

Growing community of inventors

Cleveland, TN, United States of America

Gary T Davis