Drum
CA 1293698 C · Owner: Mauser-Werke Gmbh · Inventors: Przytulla, Dietmar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a drum made of thermoplastic material, having at least one carrying ring disposed on the drum wall at a distance inwardly from the adjacent end face of the drum, the ring having a horizontal contact surface and a vertical contact surface adapted to receive gripping arms of a drum gripping device, the ring being connected with the drum by a connecting web which is fastened to the horizontal contact surface and extends into the wall of the drum wherein the wall section extending above a groove in the ring is sloped conically towards the end face of the drum the con-, ical wall section retreating in relation to the remainder of the wall of the drums to form a …
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 December 31, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 31, 2008.
- 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.