Barrel type centrifugal turbo-machine
CA 1103991 A · Owner: Hitachi, Ltd. · Inventors: Komatsu, Kazuhiro; Kasai, Kenichi; Kamata, Kunio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A barrel type centrifugal turbo-machine having an outer casing and an inner casing assembly fitted into the outer casing, which inner casing assembly includes a rotor shaft and a plurality of stage structures and a head cover provided around the shaft. A pushing member is provided adjacent to an inlet end stage structures, one end wall thereof abutting to this end stage structure and the other end wall thereof being held on the-shaft by means of a lock nut whereby upon tightening this lock nut against the pushing member each of the stage structures and head cover of the inner casing assembly may be fixed each other in a cartridge like form which is ready to be inserted into the outer casing.
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 June 30, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 1998.
- 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.