Non-dripping heat resistant dye penetrant and method of dye penetrant inspection
CA 1045529 A · Owner: Rockwell International Corporation · Inventors: Molina, Orlando G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Biodegradable water washable dye penetrant composition in the form of a gel for use in non-destructive dye penetrant inspection of parts, and which can be applied to part surfaces at varying angles without dripping, and being resistant to decomposition and liquefaction when applied to heated surfaces e.g. up to about 300°F, such composition consisting essentially of (1) an organic dye pre-, ferably a fluorescent dye, (2) a carrier or solvent for said dye in the form of a surfactant comprised of certain straight chain primary, aliphatic oxyalkylated alcohols and (3) silica, particularly fumed silica such silica employed e.g. in a proportion of 5 parts per 1 part of the sum of the other dye …
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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 January 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 1996.
- 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.