Method and apparatus for interfolding webs

Details Method and apparatus for interfolding webs Method and apparatus for interfolding webs

1987-05-11

1989-04-25

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

With cutting, breaking, tearing, or abrading

Including assembling or disassembling of distinct members

270 39, 493418, 493433, 493435, B05B 114, B31F 100

Patent

active

048244260

ABSTRACT:
A method of zig-zag folding a pair of continuous webs or web segments (sheets) to provide stacks each having a specified number of segments wherein the segments are offset one-half segment length in one web from the other, the invention including reversely folding the leading edge portion of each web to provide a spacing for the insertion of stack separator means.

REFERENCES:
patent: 1219239 (1917-03-01), Brown et al.
patent: 1886312 (1932-11-01), Stanton
patent: 2420525 (1947-05-01), Deloye
patent: 2478240 (1949-08-01), Christman
patent: 2870840 (1959-01-01), Kwitek
patent: 3207361 (1965-09-01), Marcalus
patent: 4279411 (1981-07-01), Nystrand
patent: 4494741 (1985-01-01), Fischer
patent: 4521209 (1985-06-01), DuFresne
patent: 4691908 (1987-09-01), Bradley
patent: 4721295 (1988-01-01), Hathaway

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