Energy absorption device and passenger safety crossbar system incorporating same
CA 2524296 A1 · Owner: Marshall, John · Inventors: Bentz, Herbert Walter; Holmes, Ryan Andrew; Wood, Geoffrey Mchael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An energy absorption device comprises an elongated base member (22) and an elongated mechanically fused spring arm (30) extending longitudinally from a first end (32) secured to the base member to a free distal end (34). The spring arm has resilience for storing mechanical energy when flexed from a normally unflexed position' to a flexed position. During such movement the , resistance offered by the mechanical fusing must be overcome. Thus the device serves both to store and to dissipate mechanical energy. Suitable fusing mechanisms include shear pins and mechanical fuse strips (40). A system comprising a passenger safety crossbar (10) supported by a pair of such energy absorption …
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 April 30, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 30, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2025.
- 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.