Fasteners engageable with loops of nonwoven fabrics and with other open structures, and methods and machines for making fasteners

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United States of America Patent






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A method of forming a fastener is provided, including (a) forming, from a thermoformable material, a preform product having a sheet-form base and an array of preform stems integrally molded with and extending from the base to corresponding terminal ends; (b) heating the terminal ends of the stems to a predetermined softening temperature, while maintaining the sheet-form base and a lower portion of each stem at a temperature lower than the softening temperature; and (c) contacting the terminal ends with a contact surface that is at a predetermined forming temperature, lower than the softening temperature, to deform the terminal ends to form heads therefrom that overhang the sheet-form base. Fasteners and other methods of forming them are also provided.

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Inventor Name Address # of filed Patents Total Citations
Armela, Luis Parellada Argentona, ES 7 67
Clarner, Mark A Concord, US 41 288
Clune, William P Hillsborough, US 36 400
Davis, Jefferson Antrim, US 9 73
Gallant, Christopher M Nottingham, US 65 433
Huber, William L Warner, US 9 131
Kingsford, Howard A Amherst, US 44 524
Kraus,, Jr David P Amherst, US 11 46
Labrecque, Michel Bedford, US 15 106
Provost, George A Litchfield, US 83 2139
Sanchez, Juan Argentona, ES 7 77
Spezzafero, Melissa Allentown, US 5 28

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