Automatic feeder and inverter for fabric workpieces
CA 2284636 C · Owner: Kim, Frank C. H. · Inventors: Lin, Wei-Chin; Kim, Frank C. H.; Amigh, Steven Alan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a fabric handling device. Conventionally fabric workpieces are manually lifted, visually inspected for proper orientation, and then manually flipped as necessary. The present invention takes the workpieces from a stack in which the sides facing up alternate and , automatically places them in the same orientation prior to arrival at a sewing station. A computer controlled picker (10) is used to separate the top workpiece (11) from the remaining workpieces in the stack (12) and for , depositing the workpiece on a downstream conveyor (14). An ultrasonic face detector (16) is mounted above the conveyor for determining whether the side of the workpiece …
Read the whole patent
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
- Filed March 16, 1998 and granted January 1, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 16, 2020.
- 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.