Gas pressure spring with a safety system
CA 1237059 A · Owner: Wilhelm Link Gmbh & Co. Kg · Inventors: Link, Werner
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 gas pressure spring having an outer tube which is tapered at one of its ends and for safety purposes has an annular body comprising at least two parts that are seperably joined, the annular body being clamped into position in the area of a side adjustment-lever insertion opening of the tapered end area of the outer tube and having on its inner side a restriction in diameter that is matched to the transition area to the tapered area and, having in one of its parts an opening for the adjuster lever.
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 May 24, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 24, 2005.
- 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.