Improved lumber stacking apparatus with automated sticker feeding feature for placing stickers between board layers
CA 2409513 A1 · Owner: Lunden, Sidney L. · Inventors: Lunden, Sidney L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lumber stacking apparatus 10 is described fox forming a stack 12 of layers 14, of boards with stickers placed transversely between the layers. The apparatus 10 has a, reciprocating arm structure 50 for successively picking up layers from an elevated surface, and moving the layers over to a stacking station where the layers are stripped from the, arm structure 50 as the arm structure 50 is retracted. The arm structure 50 has lifting arms, 56 with open channels 64 formed therein to receive the stickers 16. A sticker distribution, conveyor 160 extends along the rear of the apparatus to distribute stickers to spaced, sticker stations 164 corresponding to the lifting arms 56. A sticker …
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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 October 23, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 23, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2024.
- 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.