发明授权
US5893822A System for vacuum evacuation and sealing of plastic bags 失效
塑料袋抽真空密封系统

System for vacuum evacuation and sealing of plastic bags
摘要:
This invention involves a tapered vacuum bag sealer that can be used to seal conventional plastic bags and to vacuum canning jars or other food containers. The rear of the sealer housing has a connection for a PVC tube or other flexible tube that will extend to the jar or container being vacuumed to remove air therefrom. This rear connection avoids the necessity of the housing lid being opened before this vacuum procedure could be accomplished.
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