Stock material or miscellaneous articles – Hollow or container type article – Glass – ceramic – or sintered – fused – fired – or calcined metal...
Patent
1991-10-11
1993-08-03
Lusigan, Michael
Stock material or miscellaneous articles
Hollow or container type article
Glass, ceramic, or sintered, fused, fired, or calcined metal...
65 3013, 65 6053, 65 608, 51318, 427230, 4273762, 428428, 428432, 428701, 428410, C03C 1500
Patent
active
052327531
ABSTRACT:
An article made by treating the surface of a solid article made of a material having a vitreous structure, such as crystal, lead glass and the same, and containing some amounts of heavy metals such as lead, said surface being liable to be into contact with products of acid character, such as alcohols e.g. cognac, whisky, wines or fruit juices, or acid foodstuffs, with a view to prevent said heavy metals from drifting into said acid products, characterized in that it comprises forming in a superficial area of said surface, after partially removing the lead ions from said area, a silico-aluminous diffusion barrier opposing said drift into said acid product, by ion exchange between said material having a vitreous structure and a coating temporarily laid upon said surface, said coating comprising a silico-aluminous crust resulting from the heating of a kaolin layer laid upon said surface under the form of a thixotropic slip of pure hydrated aluminum silicate.
REFERENCES:
patent: 4874414 (1989-10-01), Kaite et al.
patent: 4983199 (1991-01-01), Dumas
Knapp, "Optical Glasses," The Glass Industry 465-471 (1938).
The Glass Industry, vol. 28, No. 6, Jun. 1947, pp. 300-302, and 324-326.
Compagnie des Cristalleries de Baccarat
Lusigan Michael
Utech Benjamin L.
LandOfFree
Crystal flask treated with an alumino-silicate slip and heat does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Crystal flask treated with an alumino-silicate slip and heat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crystal flask treated with an alumino-silicate slip and heat will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2269073