Pressurized container
AssigneesMaterials Engineering Inc., Ray Van Thyne, Christian Kinkel
InventorRalph C. Daehn
Life of this patent
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Abstract
The invention relates to an improved pressurized container, such as an aerosol can, which has crimping and welding of the top wall to the side wall, and which can withstand internal pressurization exceeding 400 psi and as high as 450 psi. The containers have continuous or interrupted reinforcing welding and also a notch or weakened area in the side wall to thereby direct the location of the controlled venting. In this manner, a safe, non-explosive venting of the container can occur.
Claims12
A welded container comprising a tubular side wall, a top end wall attached to a first end of the tubular side wall, a bottom end wall attached to a second end of the tubular side wall, at least one reinforcing weld between the tubular side wall and at least one of the end walls, and further comprising at least one notch in the side wall adjacent said weld, whereby the container can sustain an internal pressure of at least 400 psi, and wherein when the internal pressure is increased sufficiently, the side wall of the container will vent at the notch in a non-explosive manner.
In an aerosol container comprising a tubular side wall, a top end wall attached to a first end of the tubular side wall, a bottom end wall attached to a second end of the tubular side wall, at least one reinforcing weld between the tubular side wall and at least one of the end walls, the improvement comprising
- (a) at least one notch in the side wall, wherein said notch is adjacent said reinforcing weld and wherein the side wall at the location of the notch is reduced to a thickness of from about 0.002 to 0.004 inches thick, and
- (b) the container is pressurized to an internal pressure of at least 400 psi, and
- (c) the ability to vent non-explosively at said notch when the internal pressure is increased.
Dependencies are inferred from the claim text.