Apparatus and method for stretching an elastomeric material in a cross machine direction
CA 2125807 A1 · Owner: Kimberly-Clark Corporation · Inventors: Vogt, Robert Eugene; Ruscher, Edward Heerman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method for stretching a continuously moving elastomeric web in a cross machine direction includes a pair of rotatable, cylindrical rims which are located adjacent the elastomeric web. A supporting mechanism is connected to the cylindrical rims to guide the rims for rotation about their axes. The axes of the cylindrical rims are oriented to position the rims at a close spacing at a first location and a far spacing at a second location. The far spacing is substantially greater than the close spacing relative to the elastic web path. A gripping means is located on the cylindrical rims such that as the rims are rotated by, a driving means the gripping means receives the …
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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
- Filed June 14, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 2016.
- 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
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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.