Yarn feeding apparatus for knitting machine
CA 2034508 C · Owner: Yoo, Jae Poong · Inventors: Yoo, Jae Poong
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Yarn feeding apparatus for knitting machine in which a rotary cap driven by a motor is provided at the top of a storage drum, and optionally an idle pulley may also be provided adjacently to the lower portion of driving wheel and simultaneously shifting mechanism for shifting the driving belt alternatively to either driving wheel or idle pulley so that the, driving of the machine is stopped in case when an abnormal tension is imparted to a feeding yarn and also shifting to either constant feeding or free feeding of yarn is possible to be executed automatically. According to the invention automation, is possible for work for forming the yarn loop on the storage drum without requiring to …
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 June 18, 1990 and granted May 4, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2012.
- 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.