Patent ID: 8328159
Filing Date: 2012-12-11
Classification: B65D,F16K

Abstract:
1. A vacuum valve kit for a bag having a sealing cavity formed between two sheets and a through hole formed at one of said sheets, comprising: a vacuum valve device, which is a one-way valve, comprising a valve body, having an air passage, adapted for being disposed within said sealing cavity at a position that said air passage is extended through said through hole of said sheet, a valve retainer detachably coupling with said valve body for securely sandwiching said sheet between said valve body and said valve retainer around said through hole in an air-tight manner, and a valve member disposed within said air passage for enabling air within said sealing cavity being sucked thereout in only one direction so as to prevent said air being returning back to said sealing cavity; and a hole maker which comprises a circular cutting blade having a diameter corresponding to said valve body for making said through hole on said sheet so as to enable said air passage fittingly extending through said through hole; wherein said hole maker comprises a cutting base having a cutting platform adapted for being disposed in said sealing cavity, a cutting head having a cutting face adapted for being located on said sheet to align with said cutting platform at a position that said sheet is sandwiched between said cutting platform and said cutting face, wherein said cutting blade is mounted at said cutting face of said cutting head for cutting through said sheet to form said through hole thereon.