Method of manufacturing rotor for rotary fluid pumps
CA 1281891 C · Owner: Sugishita, Susumu · Inventors: Horikoshi, Yukio; Shimizu, Kenji; Sakamaki, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of manufacturing a rotor (10) for rotary fluid pumps comprising the steps of assembling a hollow cylindrical body (11) and both side plates (20 30) to a, hollow rotor body (12), providing the hollow rotor body with a plurality of sockets (50) each receiving a separately fabricated U-shaped vane-groove forming member and, inserting the U-shaped vane-groove forming members (60) into the respective sockets to fix the same to the rotor body by brazing. The U-shaped vane-groove forming member is made from a suitable material as a vane groove itself and sufficiently finished independently from the rotor body.
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 March 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 26, 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.
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.