Apparatus for placing spacers in stacked lumber
CA 2375329 A1 · Owner: Johnson, Robert Clinton Jr. · Inventors: Johnson, Robert Clinton Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (10) for placing spacer sticks (12) between layers of lumber is disclosed. The present invention includes an overhead feed system for distributing spacer sticks (12) to a plurality of stick placement modules (24). Each stick placement module (24) has a plurality of stick placement arms which are articulated to receive, grasp and hold sticks (12) through pincers , (190) or grippers (342). After the arms grasp a spacer stick (12) the , deviation of the arms from their normal orientations are used to gauge the suitability of the spacer stick (12) and then to reject the spacer stick (12) if the quality of the spacer stick (12) does not meet specifications. Also the apparatus …
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
- Filed June 13, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 13, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2022.
- 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.