Package making – Methods – Forming or partial forming a receptacle and subsequent filling
Patent
1982-12-16
1985-05-07
Bray, W. D.
Package making
Methods
Forming or partial forming a receptacle and subsequent filling
53384, 53469, 53568, 53570, B65B 4312, B65B 908
Patent
active
045149623
ABSTRACT:
Bags supplied in a chain are advanced step by step through a filling station wherein lip flanges on the bag tops are clampingly gripped and pulled apart to separate a reclosable profile fastener, the bag filled and then released from the clamps, and advanced from the filling station. In one arrangement clamp assemblies separate for pulling the flanges apart to open the bag to be filled and a filling nozzle may be inserted down between the separated clamp assemblies. In another embodiment the clamp assemblies include a collapsible and expandable multi-panel funnel assembly through which bag filling contents are delivered into the open bag. Each filled bag is advanced from the filling station and the fastener reclosed after leaving the filling station. The lip flanges may be treated along a transverse separation line to facilitate separation of the filled bag from the next succeeding bag.
REFERENCES:
patent: 3699746 (1972-10-01), Titchenal et al.
patent: 3744211 (1973-07-01), Titchenal et al.
patent: 3751875 (1973-08-01), Membrino
patent: 4162602 (1979-01-01), Achelpohl et al.
patent: 4169345 (1979-10-01), Douwenga
patent: 4333299 (1982-06-01), Hamilton
patent: 4387550 (1983-01-01), Lerner
patent: 4423583 (1984-01-01), Carey
Bray W. D.
Minigrip Inc.
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