Manufacturing glass bodies by means of shearing forces in elastic mould, purification and sintering
CA 1279032 C · Owner: Clasen, Rolf · Inventors: Clasen, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of and apparatus for manufacturing glass bodies. The apparatus comprises a supporting table upon which is positioned an elastic mould containing starting material which is to be homogenized and liquefied. A vibratory roller is adapted to move to and fro over the elastic mould and to apply resilient pressure against it. In the method a thixotropic suspension being the, starting material for the glass body is used to form a porous, green body which is subsequently subjected to a purification step in a heated gaseous phase and then sintered to form a glass body the starting material being homogenized and liquefied in a closed elastic mould by subjecting it to sound or ultrasonic after …
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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 January 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 2008.
- 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.