Abstract: Various two-part articles, such as metal trading cards, which safely and advantageously combine a metal substrate having front and rear sides, and an insert sheet made of metal, glass or plastic. In some embodiments, both the metal substrate and a metal insert sheet are embossed. The metal substrate includes a central main portion, four edge marginal portions terminating in respective substrate edges, and four corner marginal portions. The marginal portions surround the central main portion, sharing respective boundaries therewith, and are rolled towards the substrate rear side and around such that the substrate edges contact the insert sheet so as to hold the insert sheet in position. The rolled marginal portions together define a continuous bead around the periphery of the card without any exposed sharp edges. In some embodiments the rolled edges are replaced by hinge sleeves.

Abstract: Various dual-medium articles which advantageously combine two mediums, metal for appearance and durability, and cardboard which affords high quality printing. The articles include a generally rectangular metal substrate having front and rear sides, and a cardboard insert sheet adjacent the rear side. The metal substrate includes a central main portion, four edge marginal portions terminating in respective substrate edges, and four corner marginal portions. The marginal portions surround the central main portion, sharing respective boundaries therewith, and are rolled towards the substrate rear side and around such that the substrate edges contact the insert sheet so as to hold the insert sheet in position. The rolled marginal portions together define a continuous bead around the periphery of the card without any exposed sharp edges. In some embodiments the rolled edges are replaced by hinge sleeves.

Abstract: A collectible trading card made of embossed metal, and a boxed set of such cards. The card advantageously combines two mediums, metal for appearance and durability, and cardboard which affords high quality printing. In particular, the card includes a generally rectangular metal substrate having front and rear sides, and a cardboard insert sheet adjacent the rear side. The metal substrate includes a central main portion, four edge marginal portions terminating in respective substrate edges, and four corner marginal portions. The marginal portions surround the central main portion, sharing respective boundaries therewith, and are rolled towards the substrate rear side and around such that the substrate edges contact the insert sheet so as to hold the insert sheet in position. The rolled marginal portions together define a continuous bead around the periphery of the card without any exposed sharp edges.

Abstract: An improved self-sealing valve for use in a fluid fillable article includes a main body portion and a channel portion for receiving a fill tube. The channel portion within the main body portion is a substantially flat, elongated conduit having a pair of opposing sealed edges and, between said edges, a pair of flat flexible wall members facing each other to form a fluid seal when they bear against one another. The conduit is open at both ends. The channel passing through the valve has constrictions along its wall which change the contour of the channel so that a fill tube passed through the channel does not dislodge a sealing gel from within the channel. When fully inserted, a fill tube seats firmly against the constrictions and prevents back leakage during the filling process. Upon removal of the fill tube, the constrictions wipe the sealing gel from the fill tube shaft and retains it within the valve channel.