Weatherproof portfolios

Claim 1

An integrally molded weatherproof portfolio of a thermoplastic polymer comprising an elongated spine having a first side panel and a second side panel hingedly mounted on respective, opposite, longitudinal edges of said spine, each said panel having two integrally molded side flanges connected by an integrally molded top flange to form two opposite, three-sided, 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 by said flanges in the closed position, and sealing means comprising longitudinal tongues and mating longitudinal grooves on respective longitudinal edges of said flanges providing a substantially water-tight seal when the edges of respective enclosures are in abutting contact; and a substantially triangular wall near each end of said spine and aligned with respective side flanges on the respective panels, said side flanges each having a diagonal edge adjacent said spine, which edge abuts against one of the diagonal walls of said triangular wall when said portfolio is in the closed position, and sealing means on the respective edges of said diagonal walls to provide a substantially water-tight seal between said edges when they are in abutting contact.