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US 2002/0001530 A1Published application
Tube pump
OwnerYutaka Doi, Fumio Nakamura +2inventors
InventorsYutaka Doi, Fumio Nakamura, Katsuhiko Morita, Nagao Tamagawa
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OwnerYutaka Doi, Fumio Nakamura +2inventors
InventorsYutaka Doi, Fumio Nakamura, Katsuhiko Morita, Nagao Tamagawa
Estimating the term…
A tube pump comprising a tube formed beforehand into a shape adapted for the inner circumferential face of the housing. With this configuration, the tube can be used without problems even when the inner circumferential face of the housing is small and when the curvature of the inner circumferential face is large, and squeezing can be carried out by applying a small pressure force to the tube. Hence, the size of the pump is prevented from being made larger, and breakage of the tube owing to repeated deformations does not occur because the amount of deformation of the tube is reduced. Furthermore, synthetic resins having high chemical resistance can be used as materials of the tube. Hence, unlike a rubber tube, the tube of the present invention is suited for a wide range of applications.
A tube pump comprising a tube disposed in a ring shape along a circular inner circumferential face formed in a housing, said tube being squeezed sequentially in the longitudinal direction thereof by a pressure application member disposed inward so as to feed fluid from the inside of said tube, wherein said tube is formed beforehand into a shape adapted for said inner circumferential face of said housing.
Dependencies are inferred from the claim text.