Packing material
AssigneeCanon Kabushiki Kaisha
InventorsTai ji Watanabe, Takeshi Narita
Life of this patent
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Abstract
A packing member for packing an article, the packing member includes a medium accommodating portion accommodating medium; a non-return valve for passing the medium toward the medium accommodating portion along a longitudinal direction of the medium accommodating portion and for stopping the medium in an opposite direction away from the medium accommodating portion; and a flow path, formed by welding the non-return valve to the medium accommodating portion, for passing the medium, the flow path including a reference flow path portion extending in the longitudinal direction and an expanding flow path portion having a width larger than that of the reference flow path portion.
Claims7
A packing member for packing an article, said packing member comprising:
- a medium accommodating portion accommodating medium;
- a non-return valve for passing the medium toward said medium accommodating portion along a longitudinal direction of said medium accommodating portion and for stopping the medium in an opposite direction away from said medium accommodating portion;
- and
- a flow path, formed by welding said non-return valve to said medium accommodating portion, for passing the medium, said flow path including a reference flow path portion extending in the longitudinal direction and an expanded flow path portion having a width larger than that of said reference flow path portion.
Dependencies are inferred from the claim text.