Laminated board and hammer combination for a drop hammer forge
CA 1110154 A · Owner: Marion Plywood Corporation · Inventors: Rogers, Richard J.; Rogers, James G.; Rogers, Peter T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A laminated plywood hammerboard for a drop forge press comprised of a series of plies of hard high density wood, preferably of the order of a peeled hard maple veneer with the grain of at least most of said veneer plies running along its length each of said plies of the hammerboard having a thickness in the range of 1/32" to 3/16", and glue deposited between the plies securing the plies together and providing a relatively large number of hard glue surfaces enhancing the wearability of the board said, plies having opposite edges positioned for edgewise engagement with lift rollers on a drop forge press.
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
- Granted October 6, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 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.
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.