Mounting of a pointer to the rotor of an air core meter
CA 2032801 C · Owner: Navistar International Transportation Corp. · Inventors: Dannenberg, Robert D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The pointer of an air-core meter instrumentation gauge comprises a driven hub via which the pointer is reparably attached to a driving hub on the rotor of the air core meter movement. The driving hub is press-fitted to the rotor in proper circumferential alignment so that when the pointer is attached, the pointer will be inherently properly circumferentially oriented too. This is accomplished by providing a keyed connection between the driving and driven hubs such that the pointer can be assembled to the driving hub in only one particular circumferential orientation. The hubs also have a snap-together catch feature that is additional to the keyed connection.
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 December 20, 1990 and granted October 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 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.