Manufacturing container or tube from paper; or other manufacturi – Container making – Rigid container
Patent
1985-07-12
1987-02-10
Coan, James F.
Manufacturing container or tube from paper; or other manufacturi
Container making
Rigid container
493109, 493294, 493304, 493308, B31C 302
Patent
active
046420835
ABSTRACT:
Discrete sheets of separator material for use in dry cells are introduced tangentially into an annular clearance between the cylindrical internal surface of an outer tool and the cylindrical peripheral surface of an inner tool, and the inner tool is rotated about its axis while one or more spring-biased rollers urge the sheet in the clearance against its peripheral surface so that the sheet is converted into an inner tube which tends to expand radially and is introduced into an outer tube in response to axial shifting of the inner tool. A shoulder between the inner tool and a support for the inner tool pushes one end face of the inner tube from the clearance, and the inner tube is free to expand radially into contact with the internal surface of the respective outer tube in response to complete expulsion from the outer tool. The inner tool is then rotated in a direction to expand the inner tube prior to extraction of the inner tool from the outer tube, and the inner tube is held against extraction from the outer tube with the inner tool by the adjacent end face of the outer tool.
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Coan James F.
Hauni-Richmond, Inc.
Kontler Peter K.
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