Spring-like loose fill packaging material

Details Spring-like loose fill packaging material Spring-like loose fill packaging material

1977-10-07

1979-09-25

Silverman, Stanley S.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

206523, 206584, 206814, 428167, 428179, 428402, 428542, B32B 330

Patent

active

041691792

ABSTRACT:
The loose fill packaging material of the illustrated embodiment comprises a plurality of elements of, for example, expanded polystyrene. Each packaging element of the embodiment is of a generally block-like form which includes a body portion of a spring-like construction and two leg portions. The spring-like construction is formed by slitting a surface of the body portion at spaced-apart locations prior to the complete expansion of the packaging element.

REFERENCES:
patent: 2860768 (1958-11-01), Smithers
patent: 3181766 (1965-05-01), Kane et al.
patent: 3384221 (1968-05-01), Houtman
patent: 3896934 (1975-07-01), Graham et al.
patent: 3961006 (1976-06-01), Ropiequet
patent: 4027064 (1977-05-01), Bussey, Jr.
patent: 4042658 (1977-08-01), Collins

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