Emergency support for bolsterless air spring bogies
CA 1208496 A · Owner: M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft · Inventors: Baumann, Anton; Buchholz, Karl-Heinz; Janku, Horst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An emergency support for bolsterless air spring bogies is disclosed. The emergency support is formed by vertically positioned springs in the vicinity of the ideal turning point and the emergency, support is formed as a coil spring or alternatively as a stack of Belleville washers which concentrically surround the centre pivot. The coil spring or the stack of Belleville washers is pre-loaded in the installed condition and on one side are connected to the underframe of a carbody and on the other side are facing a contact plate of a transverse member with a clearance.
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 July 29, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 2003.
- 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.