Unwinding apparatus for a paper or board web
CA 1319355 C · Owner: Beisswanger, Rudolf · Inventors: Beisswanger, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
18, Abstract of the Disclosure, An intermittently operating unwinding apparatus has a splicing unit with a cross-member which is movable against this at right angles to the web expiring from a winding roll. With a separating device positionable from the other web side against the cross-member the, web is separated by lifting the empty spool mounted in an unwinding apparatus out of its unwinding position. A new parent roll whose web beginning is provided with an application of adhesive is transported by means of a conveyor to the point of the empty spool and the web beginning position relative to the splicing unit. The splicing unit holding the separated web end at the cross-member is, with …
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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 June 22, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 22, 2010.
- 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.