Corrugated sheet forming unit of a corrugated sheet material...

Details Corrugated sheet forming unit of a corrugated sheet material... Corrugated sheet forming unit of a corrugated sheet material...

2007-03-13

2007-03-13

Huynh, Louis K. (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Bending

Corrugating

C072S181000, C072S454000

Reexamination Certificate

active

11158087

ABSTRACT:
A corrugated sheet forming unit used in a corrugated sheet material making machine for processing a metal sheet material into a corrugated sheet is disclosed to include a table vertically movable to fit the elevation of the conveyer and receiving unit of the machine and to carry first shape forming roller sets or second shape forming roller sets into the working position for processing the supplied sheet material into a corrugated sheet of a first pattern or a corrugated sheet of a second pattern selectively.

REFERENCES:
patent: 2471490 (1949-05-01), Mercer
patent: 3628361 (1971-12-01), De Rupa
patent: 4087226 (1978-05-01), Mercer
patent: 4412443 (1983-11-01), Stoehr
patent: 4969346 (1990-11-01), Bosl et al.
patent: 7040001 (2006-05-01), Chuang
patent: 7096702 (2006-08-01), McDonald

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