Electric slot furnace
CA 1087236 A · Owner: Klein Tools, Inc. · Inventors: Williams, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A slot furnace for heating steel to forging temperatures includes a housing lined with refractory material and a refractory hearth all defining a chamber in the housing for receiving and heating forging stock. A slot is located at the front of the housing adjacent the hearth in communication with the chamber through which forging stock is inserted and withdrawn. Electrical heating elements are provided at either side of the chamber inwardly of the side walls of the chamber. The ceiling that defines the top of the chamber protrudes inwardly between the elements and above the slot. Means are provided for connecting the heating elements to an electrical power source. A temperature sensor is …
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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 October 7, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 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.