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AssigneesElbatainer Kunststoff- und Verpackungs- Gesellschaft m.b.H., Sulo Eisenwerk Streuber & Lohmann
InventorsEckhard Maier, Heinrich Ostermeier, Kalman Kormendi, Friedel Schinke
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Two symmetrical, axially separable barrel halves of plastic material are provided at their confronting end faces with peripheral edge beads each forming a set of axially projecting teeth alternating with gaps of like width, the teeth of each half fitting into the gaps of the other. The free ends of the teeth are provided with radially extending bosses forming two annular crenelations separated by a substantially flat ring zone upon the interfitting of the teeth, this zone receiving a broad strap inserted between the two crenelations to hold the barrel halves together. The peripheral edge beads are further provided, radially inwardly of the teeth and gaps, with axially extending tenons and mortises or equivalent tongue-and-groove formations to provide a supplemental bracing effect. The inner strap surface may be correspondingly beveled to exert upon the free tooth ends an elastic biasing force urging the two barrel halves toward each other in the axial direction. The barrel is internally lined with a plastic bag.
A barrel of plastic material comprising two symmetrical, axially separable halves with confronting end faces meeting at a midplane transverse to the barrel axis, each of said halves being provided in the vicinity of said midplane with a peripheral edge bead forming a set of axially extending teeth alternating with gaps of substantially like width, the teeth of each half overlying the edge bead of the other half and being received in the gaps thereof, said teeth having free ends provided beyond said midplane with radially upstanding bosses which form a pair of parallel annular crenelations bounding a substantially flat ring zone defined by the interleaved teeth of said halves, and a generally flat strap inserted under tension between said crenelations and bearing radially inwardly upon said ring zone, thereby forcing said free ends into firm contact with underlying areas of said edge beads forming the bottoms of said gaps, said edge beads being provided with axially extending bracing formations engaging each other across said midplane at locations radially inward from said ring zone.
Dependencies are inferred from the claim text.