Patent ID: 6637450
Filing Date: 2003-10-28
Classification: F17C,Y10T

Abstract:
A pressure valve device for a gas pressure cartridge, comprising:a pressure valve comprising: a body; a gas inlet formed on a bottom of the body; an exhaust port formed on a side of the body for outputting a fixed gas pressure; and a container connected to the gas inlet for retaining a gas cartridge in the container and having a moving means for moving the gas cartridge in the container, wherein the container comprises: a chamber defined in the container for retaining the gas cartridge; a slot defined in a side of the container and communicating with the chamber to allow the gas cartridge to be inserted into the chamber; and an opening defined in a top of the container, said opening corresponding to said gas inlet for connecting the container to the pressure valve, said gas inlet further comprising a hollow screwing portion and a needle cannula retained in the screwing portion for opening the gas cartridge.