Method for assembling rotors without fixtures
CA 2030075 C · Owner: Wabco Standard Trane Inc. · Inventors: Jensen, Gunther T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title, METHOD FOR ASSEMBLING ROTORS WITHOUT FIXTURES Inventor, Gunther T. Jensen, Abstract, A method of forming a clearance gap between a shrink fit rotor and a motor housing comprising the steps of heating the rotor until the rotor expands sliding the heated, rotor over a shaft having an axis bringing the heated rotor, into contact with at least one small protrusion on the surface of the motor housing, causing the protrusion to expand toward the heated rotor by transferring heat from the heated rotor to the protrusion, allowing the motor and the protrusion to cool whereby a clearance gap is formed between the rotor and the motor housing as the motor housing cools and hermetically, …
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 November 15, 1990 and granted April 12, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2012.
- 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.