Koninklijke Emballage Industrie Van Leer B.v.

Matheus Johannes Coppens

A pressure container including a cylindrical sleeve portion and an outwardly domed end wall which is connected with the sleeve portion by a seam connection. A reinforcement ring is locked between an outwardly turned surface of the domed end wall and the seam connection and the end wall and seam connection lock the reinforcement ring axially and radially. The reinforcement ring may include a bead on one end of a cylindrical sheet metal element which protrudes axially from the end wall.

Pressure container

A plug of plastic or other soft material to be screwed into a metal neck, with means for preventing the possibility of screwing in the plug obliquely. The means comprises a cone-shaped bevel around the first thread of the plug, the top angle of the bevelling cone corresponding to the top angle of the reamer used to ream the entry of the neck screw thread.

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Kalmthout, Belgium

Matheus Johannes Coppens