Device for stiffening flat workpieces of paper or the like

Details Device for stiffening flat workpieces of paper or the like Device for stiffening flat workpieces of paper or the like

1996-12-04

1999-02-16

Lavinder, Jack W.

Manufacturing container or tube from paper; or other manufacturi

Bending

Deflecting

493459, 271188, 271209, B31F 100

Patent

active

058714340

ABSTRACT:
A device for stiffening workpieces of paper includes elements that provide the workpieces with an undulated profile. The elements may be in the form of freely rotatable disks or belts that revolve around freely rotatable rollers. Respective sections of the disks or belts which come in contact with the workpieces extend through a common central plane in such a way that they provide the workpieces with an undulated profile. In order to prevent the profiling elements from laterally displacing the workpieces, a conveyor is provided which clamps the workpieces between respective conveyor sections.

REFERENCES:
patent: 3073217 (1963-01-01), Spalding et al.
patent: 3988019 (1976-10-01), Achelpohl
patent: 4540396 (1985-09-01), Berthelsen
patent: 5091754 (1992-02-01), Abe
patent: 5104117 (1992-04-01), McCormick
patent: 5112291 (1992-05-01), VerMehren
patent: 5165679 (1992-11-01), Kinomoto
patent: 5299371 (1994-04-01), Haberstroh
patent: 5501446 (1996-03-01), Takemoto
patent: 5555083 (1996-09-01), Kuo

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