Method of and apparatus for reducing puckering occuring in a line of machine stitching during the stitching operation
CA 1306642 C · Owner: J.& P. Coats, Limited · Inventors: Fletcher, John; Aitken, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for reducing puckering occurring in a line of machine stitching during the stitching operation incorporates a number of flexible filamentary stitch-engaging elements arranged side by side in close juxtaposition as an endless row of stitchengaging elements movable in a direction longitudinally of the row of stitch-engaging elements and positioned so that a portion of the row of stitch-engaging elements projects permanently across the line of stitching at the sewing position. The stitchengaging elements may project radially from a disc or a coned wheel mounted on the sewing machine with which the apparatus is to be used. The disc or the coned wheel may be freely rotatable.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted August 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.