Spring brake cylinder with an emergency release device
CA 2409557 A1 · Owner: Knorr-Bremse Systeme Fur Schienenfahrzeuge Gmbh · Inventors: Staltmeir, Josef; Fuderer, Erich; Wolfsteiner, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a spring brake cylinder with an emergency release device, comprising the following: a housing (4) in which a spring-loaded piston (6) can be moved axially with a piston rod (24) at least one spring-, loaded spring (14 16), a pressure line (20) for supplying pressurized fluid to the spring-loaded piston, wherein the emergency release device comprises an actuation device, an emergency release mechanism to interrupt the power flux between the spring-loaded piston (6) and the piston rod (18) and a holding device (30) for holding the emergency release device. The invention is characterized by a blocking device (48) to prevent engagement of the holding device (30) …
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 March 28, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 28, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 2023.
- 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.