Fitted sheet hemmer
CA 2096330 A1 · Owner: Brocklehurst, Charles E. · Inventors: Brocklehurst, Charles E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Sheet material (30) is taken from a supply (32) and is cut by cutter (36) into segments (35). The segments are moved rapidly parallel to their cut edges into a slower operating first sewing station (40) where elastic bands are sewn to the side edges of the segments. The rapidly moving trailing portion of the segment (35) of sheet material is temporarily accumulated at the accumulation station (39) and progressively fed at a slower rate through the first sewing station (40). The side edges are folded into overlying relationship with respect to the main body portion at folding station (42). Sewing machines (164 and 165) are moved inwardly of the sewing path to simultaneously cut and sew …
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 August 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2014.
- 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.