Clamping ring
CA 1280089 C · Owner: Schemm, Theodor · Inventors: Gregory, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A preferably thermoplastic clamping ring having U-shaped cross-section designed for the clamping of covers on barrels with a clamping, lever, pivoted on one end of the thermoplastic clamping ring and, with a clamping link, which is held pivotably on the other end of the thermoplastic clamping ring and is also held pivotably in flanges of the clamping lever. One object of the invention is such a design of the thermoplastic clamping ring that, on the basis of a wall thickness as small as possible and, thus of a consumption of material as small as possible, the same stiffness can be reached as in the case of a steel clamping ring. As a further object a solid hinge connection free from play, …
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 February 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 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.