Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Using sonic – supersonic – or ultrasonic energy
Patent
1996-10-03
2000-04-25
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Using sonic, supersonic, or ultrasonic energy
24452, 264167, 264280, 264296, 264492, B29C 4700, A44B 1800
Patent
active
060540915
ABSTRACT:
A method of making a hook strip having J-shaped hooks that can be used as a mechanical fastener. The method includes using an initial substrate of material formed as an array of upstanding precursor stems having distal tips at their ends opposite a backing. In addition, a heat source adapted for heating and a mechanism for deforming stem tips is provided. The substrate is positioned relative to the heat source such that a portion of the upstanding stems on the array is heated. Subsequently, the substrate is moved to a position relative to the mechanism for deforming to create a hook strip of J-shaped hooks from the heated portion of the upstanding stems. In addition, an article of manufacture, made in accordance with the method, is provided which includes a hook portion of a hook-and-loop type of mechanical fastener.
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Injection Molding Handbook, Dominick V. Rosato and Donald V. Rosato, Van Nostrand Reinhold Company, p. 504.
Melbye William L.
Miller Philip
Bond William J.
Eashoo Mark
Griswold Gary
Minnesota Mining and Manufacturing Co.
Silbaugh Jan H.
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