Multi stage heater
CA 1267926 C · Owner: Electrovert Limited · Inventors: Rahn, Armin; Drouin, Marcel; Avramescu, Sabi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi stage heater heats items on a conveyor so that they follow a predetermined temperature profile. The heater is used for printed circuit boards or the like when heated for soldering and avoids thermal gradients that can occur with heating different materials. The heater has a first heater stage for applying a first quantity of heat to items on the conveyor a second, heater stage downstream of the first heater a, temperature sensing device for determining temperature of items leaving at least one of the heater stages and a control system which compares signals from the temperature sensing device with a predetermined temperature profile to produce a control output to control at least …
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 17, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 17, 2007.
- 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.