Oil and lubricant degradation detector
CA 1206079 A · Owner: Eaton Corporation · Inventors: Rolf, Jeffrey O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a detector for indicating visually or by providing a warning signal as to the amount of chemical degradation suffered by a pressurized or unpressurized oil or lubricant containing negatively charged sulfur ions that has been exposed to elevated temperature. In its visual form detector (20 20A) has . a portion (1, 1A) made from material able to provide positively charged copper ions when emersed in the oil or lubricant and has sufficient mass to support a coating (9, 9A) that is a reaction product of the positively charged copper ions and the negatively charged sulfur ions. The detector in the form of detector (20B), 20C) is also able to provide a warning signal (17) by opening …
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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 17, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 17, 2003.
- 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.