Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With means applying wave energy or electrical energy...
Patent
1986-12-08
1989-04-18
Fisher, Richard V.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With means applying wave energy or electrical energy...
1563798, 1565802, B32B 2104
Patent
active
048224430
ABSTRACT:
Apparatus for attaching touch fastener material capable of self-bonding to a porous surface such as fabric and the like by the application of an electrical current therethrough. The material comprises a backing material with front and rear surfaces and having one portion of a touch fastening system on the front surface thereof. A layer of thermoplastic and thermosetting adhesive is bonded to the rear surface. Heat generating means are incorporated into the layer of adhesive for producing sufficient heat in the adhesive when a low voltage and high current electrical source is applied therethrough to cause the adhesive to adhere to a porous surface with which it is in contact. In one embodiment, the heat generating means comprises a strip of metal foil embedded within the layer of adhesive. In a second embodiment, the heat generating means comprising a plurality of electrically conductive/resistive particles embedded within the layer of adhesive. The apparatus includes embodiments having a roller and band moving in combination, a pair of opposed rollers, and mirror imaged feet moving in the manner of a sewing machine drive foot. Each embodiment includes contact pins for contacting the adhesive passing low voltage high current electricity therethrough.
REFERENCES:
patent: 3756889 (1973-09-01), Wolfberg et al.
patent: 3888715 (1975-06-01), Fraser et al.
patent: 4096016 (1978-06-01), Pohl
patent: 4169007 (1979-09-01), Pray
patent: 4411721 (1983-10-01), Wishart
patent: 4455191 (1984-06-01), Tatum, Sr.
patent: 4498941 (1985-02-01), Goldsworthy
Fisher Richard V.
Millard Wanda L.
Velcro Industries B.V.
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