Ottazzo, Marco Francesco Agostino

A jewellery item (10) comprising a plurality of link elements (12, 12A, 12B) which are connected to each other along a predefined direction (A) is described. The jewellery item comprises a first terminal link element (12A) and a second terminal link element (12B) which are provided with fastening means (30, 34), respectively, which define a closure system arranged to join the first terminal link element with the second terminal link element in a closed-loop configuration of the jewellery item. The fastening means comprise at least one shaped nut (30), which is arranged to fit, in shape-coupling, into a corresponding shaped seat (32) obtained in the first terminal link element, and at least one screw (34), which is arranged to both fit into a first through-hole (36) obtained in the second terminal link element, and to fit, by screwing, into the threaded hole (30C) of a shaped nut when this shaped nut is in turn inserted, in shape-coupling, into its shaped seat and when the first terminal link element is coupled with the second terminal link element.

A method for constructing a frame unit (10) is disclosed. Elongate beams (22; 32), extending outwardly of respective exterior plates (12; 14), are slid into respective elongate channels (26a, 26b; 36a, 36b) of an internal segment (16). Two opposing elongate walls (24a, 24b; 34a, 34b) of each respective elongate channel (26a, 26b; 36a, 36b) are compressed against the respective elongate beam (22; 32), in a direction perpendicular to a longitudinal axis of the elongate channels (26a, 26b; 36a, 36b). The exterior plates (12; 14) are adhered to the internal segment (16) by heating the exterior plates (12; 14) and the internal segment (16) until the internal segment (16) is pliably deformed. The exterior plates (12; 14) and the internal segment (16) are subsequently cooled to ambient temperature. The exterior plates (12; 14) are formed of a first material, and the internal segment (16) is formed of a second material, different from the first material. A frame unit (10) constructed by implementing the method is also disclosed.

A dental implant (10) comprising an endosseous screw (12) which in turn comprises an infra-osseous implant portion (14) and an extra-osseous top portion (16), or prosthetic abutment is described. The infra-osseous implant portion (14) and the prosthetic abutment (16) are integrally formed in a single piece. The dental implant (10) further comprises a hollow cap (28) which connects with the prosthetic abutment (16) by conometric coupling. The prosthetic abutment (16) is provided with an internally threaded blind hole (24), which houses a screw-shaped activator/extractor component (36). This screw (36) acts as an extractor element for the removal of the cap (28), once firmly connected to the prosthetic abutment (16), by means of a through hole (34) provided on such cap (28). The same screw (36) is also provided with an internal nut-screw (52), which ensures through a suitable tool, to obtain both the conometric coupling between the cap (28) and the prosthetic abutment (16) and an effective control of the tightening force, as well as the connection force of the components. The screw (36) therefore constitutes an activation/extraction element of the cap (28) from the prosthetic abutment (16), but not a connecting element.

A magnetic support and guide structure (10) for conveyors with articulated links is described. The structure comprises a support component (12) and a plurality of guides (14), made of a polymeric material, which protrude from the upper surface (16) of the support component. On the upper surface of the support component there are hollow seats (22A, 22B) for housing magnets (26) and corresponding ferromagnetic plates (28). The guides are provided with at least one flat plate (36), which is integrally formed in a single piece with the respective guide and protrudes from a first side surface (34A) thereof. The guides are also provided with at least one notch-shaped recess (38), which is obtained on the other side surface (34B) of the respective guide. A terminal edge (42) of the flat plate of a given guide at least partially fits, in a form-fitting manner, into a respective recess of an adjacent guide in the assembled configuration of the structure. In this way, each flat plate is arranged parallel to and in contact with the upper surface of the support component, so as to completely cover the hollow seats in which the magnets and the corresponding ferromagnetic plates are housed, protecting them from infiltrations and dirt.

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Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

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