Method for reinforcing hollow glass articles
AssigneeSaint-Gobain Emballage
InventorsEric Martin, Jean-Michel Munos, Frédéric Mertz
Life of this patent
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Abstract
The invention relates to: a process for the mass production of hollow glass articles which, when positioned beside one another with the same orientation in one and the same plane, are liable to come into mutual contact along a surface of revolution, characterized in that after they have left the annealing lehr, they are rotated through one turn at least along the axis of said surface of revolution, this surface then being coated, by a process without any solid contact, with an additional layer which reduces the coefficient of friction; a hollow glass article as obtained by this process; and a packaging assembly of such articles.
Claims12
1:
- A process for the mass production of hollow glass articles which, when positioned beside one another with the same orientation in one and the same plane, are liable to come into mutual contact along a surface of revolution, characterized in that after they have left the annealing lehr, they are rotated through one turn at least along the axis of said surface of revolution, this surface then being coated with an additional layer which reduces the coefficient of friction by means of a process without any solid contact.
2:
- The process according to claim 1, characterized in that said surface of revolution is coated with said additional layer in the position of the article in the optical checking machine.
3:
- The process according to claim 1, characterized in that said surface of revolution is coated with said additional layer by a reactive or unreactive, gas and/or liquid spray process.
4:
- The process according to claim 1, characterized in that said surface of revolution is at a temperature between 20° C. and 100° C. when it is coated with said additional layer by an unreactive liquid spray process.
5:
- The process according to claim 1, characterized in that said additional layer is left to dry after its application, in the absence of any solid contact with said additional layer while it is drying.
6:
- The process according to claim 1, characterized in that said surface of revolution is coated with said additional layer in the position of the article at the last station of the optical checking machine.
7:
- The process according to claim 1, characterized in that the optical checking members are isolated from the zone for coating said additional layer by an air curtain.
8:
- The process according to claim 1, characterized in that the articles are provided with a first coating between the I.S. machine and the transfer wheel.
9:
- The process according to claim 1, characterized in that after they have left the annealing lehr and before they pass into the optical checking machine, the articles are provided with a second coating which reduces the coefficient of friction.
10:
- A hollow glass article which, when positioned beside a similar article of the same orientation, in one and the same plane, is liable to come in contact with the latter along a surface of revolution, characterized in that said surface of revolution has a maximum thickness of coating that reduces the coefficient of friction.
11:
- A bottle, flask or pot according to claim 10, said surface of revolution of which represents at most 50% of the external surface.
12:
- A packing assembly, for packing hollow glass articles according to claim 10, whether they are empty or filled, positioned side by side with others with the same orientation in one and the same plane, in mutual contact along their said surfaces of revolution.