Windchill indicator
CA 1074591 A · Owner: Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty'S Canadian Government · Inventors: Machattie, Lloyd E.; Kuehn, Lorne A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable measuring device to provide a readout representing an equivalent windchill temperature or heat loss from exposed flesh in cold moving air. The device comprises a body having a channel through which moving air is conducted. A pair of oppositely disposed walls are part of the channel, and at least one of these walls is at least partially transparent. A windvane is disposed in the channel for deflection by the air moving through it. The windvane is supported from the body of the measuring device for pivotal movement. A thermometer is also supported from said body, and has graduations thereon to provide a measurement of the air temperature. Chart means are also provided on the body …
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 April 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 1997.
- 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.