Apparatus for manufacturing fabric for coverings for...

Sewing – Work manipulating – Guides

Reexamination Certificate

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Reexamination Certificate

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11615854

ABSTRACT:
An apparatus for forming fabrics for use in coverings for architectural openings includes a system for handling single or multi-layered fabrics by suspending the fabric from a lift tower, threading the fabric through various clamp systems, and subsequently forming horizontal rows of hobbles, tunnels, and/or attached rings by gripping and releasing the fabric with a vacuum clamp, upper and lower clamps, and a tucker blade clamp while a reciprocating tucker blade forms horizontal tucks in the fabric. The tucks are selectively treated by forming a tunnel or attaching guide rings. Hobbles can also be formed in one layer of the fabric through use of the vacuum clamp which gathers a portion of one layer of the fabric while the other layer is handled differently. In doing so, hobbles are formed between tucks in the fabric with the hobbles establishing a fabric resembling a Roman shade.

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patent: 3986647 (1976-10-01), Kendall
patent: 5769015 (1998-06-01), Kato
patent: 5996198 (1999-12-01), Wang et al.
patent: 6530335 (2003-03-01), Halfmann et al.
patent: 534 243 (1973-02-01), None
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patent: 10 137476 (1998-05-01), None
patent: 2000 303348 (2000-10-01), None
patent: 1 004 021 (1998-03-01), None
patent: 1 006 408 (1998-12-01), None
patent: WO 90/04079 (1990-04-01), None

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