Method and apparatus for drying liquid media
CA 2068335 A1 · Owner: Cox, Clifford E. · Inventors: Cox, Clifford E.; Stout, John A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus in which one or more positive temperature coefficient thermistors (16) heat air for application to printed stock (12) in a printing press. The apparatus is preferably mounted on the press (14), located a short distance above stock (12) traveling from a printing station to a delivery station. The apparatus directs air flow downward over or through the PTC thermistors (16) and into contact with the printed stock (12). Preferably variable-speed fans (18) provide forced airflow for this purpose. The rate of heat output of the apparatus may be varied. The preferred PTC thermistors (16) are supported on a frame of adjustable or variable length adapted to span the width of …
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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 September 19, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2013.
- 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.