Shoe machine air blast mechanism and air blast safety
CA 1135462 A · Owner: Usm Corporation · Inventors: Kulik, Alphonse C.; Walter, Josef J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for cement applying mechanisms in shoe lasting machines, wherein a safety valve is caused to prevent air from entering an air feed line in the cement feed when there is no shoe in the shoe machine and the shoe machine has been actuated thereby preventing, the machine operator from being injured by hot cement and where, nozzles may be effectively used with an air blast to controllably project hot cement onto portions of insoles some of which may not be immediately thereadjacent.
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 November 16, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 16, 1999.
- 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.