Process and an apparatus for crystallizing a substance dissolved in a liquid in zero gravity
CA 1329359 C · Owner: Littke, Walter · Inventors: Littke, Walter; Schoen, Erhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is described to crystallize out a substance that is dissolved in a liquid that is in a state of zero gravity. In order to minimize any structural defects that are found in the mono-crystals that have been crystallized out to the greatest extent possible, it is proposed that during the crystallization process the liquid is retained in a quasi-freely suspended sphere of liquid, and the substance within the liquid is crystallized out with the help of known methods. It is expedient that the sphere of liquid is retained freely suspended within a space that is defined from the outside by retaining elements. In a suitable apparatus these retaining elements can be attached to the inside …
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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 May 10, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 10, 2011.
- 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.