Sound proofing and vibration dampening elastic connecting element
CA 2098793 C · Owner: Alusuisse Technology & Management Ltd. · Inventors: Ritzl, Antal; Wernli, Markus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sound proofing and vibration dampening connecting element (B) for floating suspension of a floor-deck on a structural load-bearing carriage, floor of railway vehicles for passenger transport features a base section (28) that is U-shaped in cross-section and projecting partly over this, a, deck-supporting section (38) that is U-shaped in cross-section with base strips (30, 40) having flanges (32, 42) projecting perpendicularly from them. Between the pairs of facing flanges (32 42) and adhesively bonded, to them are elastic profiled strips {46) that along with base strips (30, 40), forming the contact surfaces for the carriage floor (26) and floor-deck (27), delimit a hollow space (47).
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 June 18, 1993 and granted October 17, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2015.
- 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.