Plunger mechanism for the pressing of gobs of molten glass in the blank mould of an I.S. machine for the production of hollow ware
AssigneeBDF-Boscato & Dalla Fontana S.p.A.
InventorsDaniele Sasso, Mirco Scabio, Claudio Bellina
Life of this patent
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Abstract
Plunger mechanism for the pressing of gobs of molten glass in the blank mould of an I.S. machine for the production of hollow ware, characterized in that the driving and controlling of the up and down movements of the pressing plunger is effected by a linear electric motor, conveniently a tubular-type linear motor.
Claims4
A plunger mechanism for the pressing of gobs of molten glass in the blank mould of an I.S. machine for the production of hollow ware, said plunger mechanism comprising a pressing plunger and means for driving and controlling up and down movements of said pressing plunger, wherein said driving and controlling means comprise a linear electric motor,
- wherein said linear motor is a tubular linear motor, and
- wherein said linear motor has a hollow shaft to allow passage of cooling air to said pressing plunger.
Dependencies are inferred from the claim text.