Oxygen gas cartridge
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 31, 1992
Grant Date -
N/A
app pub date -
Aug 7, 1990
filing date -
Aug 8, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An oxygen gas cartridge which hardly leaks or explodes, comprising an inner sealing plate attached to a main body thereof by calking and an outer sealing plate welded to the main body by laser beams at the outside of the inner sealing plate. As inner pressure of the cartridge increases abnormally, the inner sealing plate will curve into a space between both sealing plates to be broken first, and then the outer sealing plate will be broken next.
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