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US 6,592,335 B2Granted
Ribbon drive pumping apparatus and method
OwnerJonathan B. Rosefskyinventor
Life of this patent
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Abstract
The ribbon drive pump has an extended tube having an intake at a first end and an outlet at a second end. A ribbon formed of helical coils is mounted in the tube for rotation and the frequency of the coils decreases from the first end to the second end of the cube. Liquid is collected at the first end, an axial component of velocity of the liquid is increased via the rotating ribbon, and the liquid is ejected from the second end to provide pumping of the liquid.
Claims15
A pumping apparatus for liquids comprising:
- at least one tube having an intake at a first end and an unobstructed outlet at a second end;
- at least one axial shaft inside said at least one tube;
- at least one ribbon having an inner edge mounted to said at least one shaft, said ribbon being formed of coils extending in a helical manner from the first end to the second end of the at least one tube, wherein a frequency of coils per unit length of tube decreases from the first end to the second end of the at least one tube;
- and
- drive means for rotating said shaft and ribbon so as to pump liquid from said first end to said second end, wherein said ribbon is formed of rigid material selected from the group consisting of metal, composite materials, plastic polymer, and ceramic.
2 more elements
A pumping method for liquids comprising:
- providing at least one tube having a substantially constant diameter intake at a first end, and an outlet at a second end;
- rotating at least one axial shaft within said at least one tube and at least one ribbon having an inner edge mounted to said at least one shaft so as to:
- collect liquid at the first end;
- increase an axial component of velocity of the liquid with the rotating ribbon;
- and
- eject liquid from the second end to pump said liquid,
- wherein said at least one ribbon is formed of coils extending in a helical manner from the first end to the second end of the tube,
- wherein a frequency of coils per unit length of tube decreases from the first end to the second end of the tube and
- wherein said ribbon is fabricated from a rigid material selected from the group consisting of metal, composite materials, plastic polymer, and ceramic.
6 more elements
Dependencies are inferred from the claim text.