Method and machine for producing a seam which is not...

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

Reexamination Certificate

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C156S088000, C112S475010, C428S104000

Reexamination Certificate

active

10446660

ABSTRACT:
A method and a machine for producing a seam which is not susceptible to coming undone, with at least one interlooped and/or interlaced stitching thread and with stitching passes in or through at least one thickness of the material of an object, called the sewn object. The seam is produced with at least one stitching thread having a thermoplastic material at least on its exterior. At least one infrared laser beam is applied locally to the seam on the exterior of the sewn object, which laser beam is adapted to soften punctually the thermoplastic material present on the exterior of at least one strand of thread extending on the exterior of the sewn object and adjacent to at least one other strand of thread.

REFERENCES:
patent: 1560712 (1925-11-01), Naylor
patent: 3041816 (1962-07-01), Stuewer
patent: 3296990 (1967-01-01), Simjian
patent: 5003902 (1991-04-01), Benstock et al.
patent: 5856243 (1999-01-01), Geirhos et al.
patent: 0 223 312 (1990-09-01), None
patent: 886.765 (1943-10-01), None
patent: 1.427.611 (1966-01-01), None
patent: 90.562 (1968-01-01), None
patent: WO99/52710 (1999-10-01), None
Patent Abstracts of Japan, vol. 1997, No. 07, JP 09084980, Hirose MFG Co Ltd, Mar. 31, 1997.

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