Personal appliance having shock protection circuitry
CA 1311796 C · Owner: Shoemaker, Richard E. · Inventors: Shoemaker, Richard E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A personal appliance, such as a hair dryer with enhanced, shock hazard protection and including a housing formed of, two complementary and interfitting sections electrical units, mounted within the housing a power cord leading to the, housing, an IDCI on the power cord and a sensing wire, associated with the power cord leading from said housing to said IDCI, electroconductive coating on the internal surfaces of the housing sections, and means for interconnecting the coating to the sensor wire, whereby water contacting the coating and the power cord or any of the electrical units will cause a voltage in the sensing wire and thereby trigger theIDCI..
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 December 22, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 2009.
- 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.