Propellant-free pressurized material dispenser
AssigneeGreenSpense Ltd.
InventorsGadi HAR-SHAI, Adam SCHWARTZ
Life of this patent
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Abstract
A device for dispensing a material under pressure, including at least one elastic portion defining at least one wall of a chamber defining a volume within which said material is to be contained; and at least one non-elastic portion coupled to said at least one elastic portion and affecting a geometry of one or both of said elastic portion and of said chamber; wherein, at least when the material is contained within said chamber, said at least one elastic portion is stretched so as to urge a reduction in volume of said chamber by at least 70%. The non-elastic portion is optionally rigid.
Claims32
A device for dispensing a material under pressure, comprising:
- at least one elastic portion defining at least one wall of a chamber defining a volume within which said material is to be contained;
- and
- at least one non-elastic portion coupled to said at least one elastic portion and affecting a geometry of one or both of said elastic portion and of said chamber;
- wherein, at least when the material is contained within said chamber, said at least one elastic portion is stretched so as to urge a reduction in volume of said chamber by at least 70%;
- wherein said at least one elastic portion is under tension when said chamber is empty of material.
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A device for dispensing material under pressure, comprising:
- at least one elastic portion defining at least one wall of a chamber with a volume for holding said material;
- and
- at least one non-elastic element attached to or embedded within said at least one elastic portion to interfere with extension of said at least one elastic element in at least one direction
- wherein said at least one elastic portion is under tension when said chamber is empty of material.
Dependencies are inferred from the claim text.