This invention pertains to plastic injection mold tooling, and also large forgings, formed from a low carbon mold steel having markedly increased hardening and hardenability properties in large sections as contrasted to currently available commercial products. The above attributes are obtained together with equal or better machinability and improved mold parting line wear. When manufactured in conjunction with a double melt process, this invention can improve significantly polishing characteristics and other attributes of molded parts in tooling sets.

An interlocking construction block system comprising a family of blocks that interlock along three axes, including a left/right axis, a front/back axis, and an up/down axis. The family of blocks are self-aligning and do not require skilled labor or mortar to create a structure of any length, width, height, or shape. Each block comprises a specific geometry that allows all blocks in the family to interlock in a woven pattern that not only locks the blocks in place but also allows even distribution of structural weights and stresses. The disclosed blocks can be manufactured in different sizes to conform to any building code requirement and to create wall lengths to a one-inch measurement. The blocks may comprise channel openings to allow for plumbing, electrical, and structural reinforcements in the structure and may each be reinforced with an internal mesh cage.

A three-dimensional printing nozzle structure including a heater, a nozzle, a feed tube and a baffle member is provided. The heater has a first through hole. The nozzle is connected to the heater and has a second through hole. The feed tube passes through the first through hole and has a feed channel. The first through hole, the second through hole and the feed channel are aligned with each other. A filament moves along the feed channel to pass through the heater. The heater heats and melts the filament, and the filament that has been melted moves from the feed channel into the second through hole to be extruded. The baffle member is disposed inside the first through hole and located between the feed channel and the second through hole. The baffle member is configured to adjust a degree of communication between the feed channel and the second through hole.

A continuous roll molding system and method are provided. The system and method may be for manufacturing parts and may include conveying a thermoplastic material through a sheet die to form a thermoplastic sheet material, conveying the thermoplastic sheet material through a calendering system, and conveying the thermoplastic sheet material through a continuous roll molder to form the thermoplastic sheet material into parts. Parts formed by the continuous roll molding system and method may include frangible cap strips.

3D printing device and 3D printing method. The device (1) comprising: a build platform having an external surface; means for providing a polymerizable fluid resin (4) on said surface; a radiation source (5), to emit a radiation beam (7) to said surface; beam positioning means (8), to variably position an impinging point of said beam (7); and means for controlling said source (5) and said positioning means (8) to manufacture a 3D tubular object (100) according to a model: wherein the build platform comprises a stem (3) forming a tubular shaped surface (2) around a longitudinal axis (9), so that said external surface of said build platform is comprised in said tubular shaped surface (2), and said positioning means (8) is configured to variably position said impinging point of said beam (7) on different points of said fluid resin (4) provided on said tubular shaped surface (2).

Clinical waste container (100) comprising a lower basket part (110) and an upper lid part (120), comprising a cylindrical part (121) having an upper lid opening (122); and a lid cap part (130), arranged to be fastened to said lid part so as to cover said lid opening, wherein the lid part and the lid cap part each comprise cooperating snap-lock means (123, 133), comprising several separated elongated protrusions (133a,133b), together defining a broken circle.

The lid part comprises at a lower end (124) a bend (125) of at least 60?, with an inner radius (R1) of at the most 5 mm and an outer radius (R2) of at the most 5 mm, defining a local material thickness increase of at least 25%.

The lid part and the lid cap part comprise at least 30% by volume wooden fibres.

The invention also relates to a method of manufacturing such a container.

Clinical waste container (100) comprising a lower basket part (110) and an upper lid part (120), comprising a cylindrical part (121) having an upper lid opening (122); and a lid cap part (130), arranged to be fastened to said lid part so as to cover said lid opening, wherein the lid part and the lid cap part each comprise cooperating snap-lock means (123, 133), comprising several separated elongated protrusions (133a,133b), together defining a broken circle.

The lid part comprises at a lower end (124) a bend (125) of at least 60?, with an inner radius (R1) of at the most 5 mm and an outer radius (R2) of at the most 5 mm, defining a local material thickness increase of at least 25%.

The lid part and the lid cap part comprise at least 30% by volume wooden fibres.

The invention also relates to a method of manufacturing such a container.

Clinical waste container (100) comprising a lower basket part (110) and an upper lid part (120), comprising a cylindrical part (121) having an upper lid opening (122); and a lid cap part (130), arranged to be fastened to said lid part so as to cover said lid opening, wherein the lid part and the lid cap part each comprise cooperating snap-lock means (123, 133), comprising several separated elongated protrusions (133a,133b), together defining a broken circle.

The lid part comprises at a lower end (124) a bend (125) of at least 60?, with an inner radius (R1) of at the most 5 mm and an outer radius (R2) of at the most 5 mm, defining a local material thickness increase of at least 25%.

The lid part and the lid cap part comprise at least 30% by volume wooden fibres.

The invention also relates to a method of manufacturing such a container.

A film edge sealing device is disclosed herein which has a groove defining a base. The base of the groove of the edge sealing device is oriented at a skewed angle with respect to a longitudinal direction of the conveyor of the heat sealing machine. Edges of a thermoplastic sheet or two stacked layers of thermoplastic sheets are introduced into the groove of the edge sealing device and placed in contact therewith to both heat and melt the edges of the thermoplastic sheet(s) to form a bead and join the edges thereof to form an edge bead seal.

A film edge sealing device is disclosed herein which has a groove defining a base. The base of the groove of the edge sealing device is oriented at a skewed angle with respect to a longitudinal direction of the conveyor of the heat sealing machine. Edges of a thermoplastic sheet or two stacked layers of thermoplastic sheets are introduced into the groove of the edge sealing device and placed in contact therewith to both heat and melt the edges of the thermoplastic sheet(s) to form a bead and join the edges thereof to form an edge bead seal.