Log saw clamp apparatus and method
CA 2393544 A1 · Owner: C.G. Bretting Manufacturing Company, Inc. · Inventors: Johnson, Jeffrey L.; Butterworth, Tad T.; Lumberg, Eric J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The log saw clamp (10) of the present invention includes a brace (34) and at least one jaw (38) connected to an actuation member (30). The preferred embodiment has two jaws (26) supporting the logs from below the brace (34) , restraining logs from above and the actuation member connected to both ends of the brace. The diameter of the log receiving area (110) can be adjusted by moving the actuation members. Linear movement of the actuation members causes the jaws to pivote and the brace to translate such that the diameter of the log receiving area is increased or decreased. The jaws are pivotally connected to the actuation member via jaw mounts (74). The actuation member is …
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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 December 1, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 1, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 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.