Multi cell tube and manufacturing method

Details Multi cell tube and manufacturing method Multi cell tube and manufacturing method

2005-07-26

2005-07-26

Maust, Timothy L. (Department: 3751)

Metal working

Method of mechanical manufacture

Gas and water specific plumbing component making

C029S463000

Reexamination Certificate

active

06920691

ABSTRACT:
A method of manufacturing a multi-cell tube having two or more cells, which are repeatedly formed in longitudinal and circumferential directions of the tube in such a manner that fluid can be separately or simultaneously let into and/or out of the respective cells. The multi-cell tube comprises a cell unit including a plurality of cells arranged in one direction of the tube and have corresponding inlets in a direction intersecting with the direction in which the cells are arranged; a supply tube unit which has an opening/closing valve at any one side end thereof and communicates with the inlets of all the cells in a state where the supply tube unit is close to the cells; and an operating tube unit, made of inflatable material (e.g. rubber, plastics or the like), which is installed within the supply tube unit, and has an opening/closing valve at any one side end thereof.

REFERENCES:
patent: 5596778 (1997-01-01), Suzuki et al.
patent: 5699570 (1997-12-01), Wilkinson et al.
patent: 5920934 (1999-07-01), Hannagan et al.
patent: 5956787 (1999-09-01), James et al.
patent: 6317912 (2001-11-01), Graebe et al.

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