Paper spring method

Details Paper spring method Paper spring method

1979-11-02

1981-01-27

Coan, James F.

Manufacturing container or tube from paper; or other manufacturi

Assembling or disassembling of distinct members

Comprising bringing two members together

493407, 493904, 493967, B31D 504, B31D 302, B65H 4520

Patent

active

042472890

ABSTRACT:
A paper spring is formed by longitudinally folding a sheet along parallel fold lines to provide a strip and thence transversely folding the strip in a zigzag manner. The resulting paper spring may be contained in a paper housing in the form of an open-sided rectangular band and a series of the resulting paper spring units may be mounted on a carboard panel to provide a platen. Such springs or units provide a resilient cushion for fragile items shipped in boxes.

REFERENCES:
patent: 378212 (1888-02-01), Palmer
patent: 490938 (1893-01-01), Yarrington
patent: 1680341 (1928-08-01), Rosenthal
patent: 1819281 (1931-08-01), Dexter
patent: 2305515 (1942-12-01), Chapman
patent: 2855632 (1958-10-01), Croce et al.
patent: 3800954 (1974-04-01), Lampcov
patent: 4151787 (1979-05-01), Rohr et al.

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