Method and apparatus for manufacturing innerspring assemblies
CA 2367871 A1 · Owner: Springform Technology Limited · Inventors: Whitworth, Ian James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for the manufacture of an innerspring assembly suitable for a , mattress, cushion or the like comprises the steps of a) positioning a first string (6) of pocketed coil springs in juxtaposition with a plurality of adhesive applicators (12) disposed in mutually fixed relation on an axis parallel to a longitudinal axis of said first string (6) b) applying adhesive , from said adhesive applicators (12) to said first string (6) of pocketed coil springs, and c) bringing said first string (6) into adhesive contact with a second string (6a) of pocketed coil springs. Apparatus for carrying out the method is also disclosed, as are innerspring assemblies produced by the method.
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 13, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 13, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2022.
- 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.