Caliper control system and method
CA 1237309 A · Owner: Impact Systems, Inc. · Inventors: Sharma, Rajeeva
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
System and method for controlling the caliper of a web of material acted upon by one or more pressure rolls. The caliper is controlled by adjustment of the diameter of the roll, and the roll is locally heated and cooled by a combination of impingement, radiant and convective heat transfer.
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
- Granted May 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
- 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.