Convector containing a flattened plastic tube spiral, and a method of manufacturing same
CA 1049493 A · Owner: Aktiebolaget Atomenergi · Inventors: Bosaeus, Jan A.; Skarud, Bengt O.R.; Margen, Peter H. E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
there is provided a convector comprising a plastic tube arranged in the shape of a flattened helix the major flat sides, of which are displaced relative to each other in the axial direction of the helix, such that the bend radius of the tube at the minor sides or the helix is substantially longer than half the distance between the major side of the flattened helix. There is also provided a method for manufacturing such a convector,wherein, starting from a supply of tubing a bend is, formed in the tube, said bend inserted in a slot in one of a pair of parallel support structures, each having a series of oblique and parallel slots, a fresh vend is formed in the tube and inserted in a slot on …
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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 February 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 1996.
- 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
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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.