B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
26/110, 24/31.6
B32B 19/02 (2006.01) B23K 13/02 (2006.01) B29C 65/02 (2006.01) H05B 6/10 (2006.01)
Patent
CA 1091902
ADHESIVE FASTENER ARTICLE Abstract of the Disclosure This invention relates generally to an adhesive fastening device for securing a secondary workpiece to a primary work surface. The device includes a plate-like base of ferromagnetic material having a substantially uniform, predetermined cross-sectional thickness and carries a fastening element on the upper surface thereof and a layer of heat activatable adhesive on the undersurface thereof. A plurality of protuberance means of limited height and limited surface area are formed upwardly from the base with the protuberance means being located in a pair of laterally spaced, parallel lines. Each line is closely adjacent to the perimeter of the layer of heat activatable adhesive, so that a U-shaped inductor core may be positioned over the base with the end surfaces of the legs of the core abutting the laterally spaced lines of protuberances thereby minimizing the heat loss from the device as the device is heated through the completion of a magnetic flux circuit between the legs of the core with the base of the device.
310356
Illinois Tool Works Inc.
Meredith & Finlayson
LandOfFree
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