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Expired Canadian patentCanada

Combined breaker size press coater

CA 1110844 A · Owner: Beloit Corporation · Inventors: Dreher, George L.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A paper web processing mechanism for applying a combined breaker press and size press coating operation including a first breaker nip formed between a first hard surfaced chilled iron roll and a second coating roll with the first roll being loaded to control the nip pressure and a third roll forming a coating nip with said second roll with the web led immediately through the second nip either by following the second roll or being passed over a guide roll therebetween and the web coated as it passes into the second nip in either a gate roll coating operation by gate rolls nipped against the third roll or by a puddle coating operation with coating supplied to the upwardly facing side of 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

  • Granted October 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 7, 1978
GrantedOctober 20, 1981
Term endedOctober 20, 1998
Patent numberCA 1110844 A
Classification (IPC)B05C1/12 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedSep 7, 1978Patent grantedOct 20, 1981Term endedOct 20, 1998

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.