Weatherproof portfolios

Details Weatherproof portfolios Weatherproof portfolios

1979-08-06

1981-10-13

Bell, Paul A.

Binder device releasably engaging aperture or notch of sheet

Depository

Face member with back member

150 16, 150 12, 190 41R, 206215, 220306, 220339, A45C 302, B65D 4314

Patent

active

042945585

ABSTRACT:
Weatherproof portfolios which are integral moldings of a thermoplastic polymer forming an elongated spine having a first side panel and a second side panel respectively hingedly mounted on respective, opposite, longitudinal edges of said spine, each panel having two integrally molded side flanges connected by an integrally molded top flange to form two, respective, substantially identical enclosures on respective panels, the longitudinal edges of said two side flanges and said top flange of the respective enclosures being aligned when said side panels are swung about their hinges from an open position toward each other and into abutting contact in the closed position, and grooves in the longitudinal edges of the side and top flanges on one side panel and longitudinal mating tongues or ribs on the longitudinal edges of the side and top flanges of the other side panel to provide substantially weathertight seals when the portfolio is closed.

REFERENCES:
patent: 1985521 (1934-12-01), Schell
patent: 3010552 (1961-11-01), Davidson
patent: 3346099 (1967-10-01), Thomas et al.
patent: 3483954 (1969-12-01), Michalski
patent: 3861556 (1975-01-01), Barecki
patent: 3891070 (1975-06-01), Montanari
patent: 3908852 (1975-09-01), Ricobene

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