Device for tightly attaching a fragile object
CA 2006463 C · Owner: Tarreau, Michel · Inventors: Tarreau, Michel; Camous, Jacques; Louis, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
So as to fix a fragile object, such as a mirror (10) embarked on a man-made satellite, which is required to undergo significant temperature variations as well as impacts and vibrations, two dovetail-shaped grooves are machined on this object, a pair of thin strips (20,22) being placed in each of said grooves. The thin strips are secured to a supporting block (14) by means of screws (24), a stack of spring washers being placed between the head of each screw and the block. Sheets, preferably made of malleable metal such as gold, are placed between the object (10) and each of the parts of the fixing device in contact with this object.
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
- Filed December 21, 1989 and granted March 7, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2011.
- 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.