Lubrication tester
CA 1287504 C · Owner: Saruwatari, Mick · Inventors: Saruwatari, Mick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A small lubricant testing device which has a rotor to which a small electric hand drill can be attached for driving during a simple test to establish the relative amount of pressure which has to be applied to a member having a small contact area pushed against an outer surface of the rotor. The testing device, which can be readily carried by a salesman for the purposes of demonstrating the relative strength of a lubricating film produced by a particular liquid lubricant or an additive includes a, receptacle for receiving the sample lubricant to a level to contact the surface of the rotor. A handle against which, a force by hand may be exerted to increase the pressure applied by the contact …
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 August 13, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 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.