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Expired Canadian patentCanada

System and method for testing a fire suppression system in a clothes dryer

CA 2529172 C · Owner: Kegler, Andrew F. · Inventors: Kegler, Andrew F.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A clothes dryer (20) has a test button (72) for testing the fire suppression system of the dryer. The test button (72) is connected to the temperature sensor (32) of the lire suppression system such that when the test button (72) is actuated it presents a signal, such as by shorting the two leads of the temperature sensor (32) together, to simulate the condition of the temperature sensor (32) sensing a high temperature. This triggers the control cicuit (56) of the fire suppression system to turn on a water valve (62) to activate the sprinkler system (38). The fire suppression system is then reset by actuating a reset button (78).

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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

  • Filed June 14, 2004 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 14, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 14, 2004
GrantedJanuary 10, 2012
Term endedJune 14, 2024
Patent numberCA 2529172 C
Classification (IPC)F26B19/00

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJune 14, 2004Patent grantedJan 10, 2012Term endedJune 14, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.