Expired Canadian patentCanada
Interblade seal for turbomachine rotor
CA 1284954 C · Owner: United Technologies Corporation · Inventors: Kalogeros, Robert Roland
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sheet metal seal (42) provides both radial and axial sealing of the gap (34) formed between adjacent blade platforms (30, 32) in a rotor assembly (10) of a turbomachine.
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 18, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 18, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 24, 1987
GrantedJune 18, 1991
Term endedJune 18, 2008
Patent numberCA 1284954 C
Classification (IPC)F01D5/30 +1 more
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.