Package making – With contents treating – Vacuum or inert atmosphere
Reexamination Certificate
2005-02-21
2010-11-02
Gerrity, Stephen F (Department: 3721)
Package making
With contents treating
Vacuum or inert atmosphere
C053S526000, C053S528000, C053S529000, C100S090000
Reexamination Certificate
active
07823368
ABSTRACT:
An apparatus for making a substantially air-tight foil package for mineral wool that includes a mechanical compressing device for compressing the mineral wool in a first direction to bring about a dimensional reduction thereof. A wrapping device encloses the mineral wool with a web of a substantially air-tight foil. An evacuating station is arranged downstream of the compressing device and it includes an evacuating device for evacuating air from the mineral wool compressed by the compressing device and enclosed by the foil. The evacuating station includes opposed surfaces for maintaining the dimensional reduction during transfer to the evacuating means of the foil enclosed mineral wool compressed by the compressing device. The opposed surfaces maintain the dimensional reduction during evacuation by the evacuating device.
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Elmekilde Hansen Lars
Sørensen Claus Egholm
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Gerrity Stephen F
Rockwool International A/S
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