Abstract: A hybrid bone plate has a first plate portion, having a first top surface and a first bottom surface and comprises a hard titanium alloy. A second plate portion has a second top surface and a second bottom surface and comprises a pure titanium or a soft titanium alloy. The first plate portion has a higher material yield strength than the second plate portion. The first plate portion and the second plate portion are connected to each other at a transition region by for example welding wherein in the transition region the first top surface and the second top surface together form a closed top integral surface and the first bottom surface and the second bottom surface together form a closed bottom integral surface.

Abstract: A hybrid bone plate has a first plate portion, having a first top surface and a first bottom surface and comprises a hard titanium alloy. A second plate portion has a second top surface and a second bottom surface and comprises a pure titanium or a soft titanium alloy. The first plate portion has a higher material yield strength than the second plate portion. The first plate portion and the second plate portion are connected to each other at a transition region by for example welding wherein in the transition region the first top surface and the second top surface together form a closed top integral surface and the first bottom surface and the second bottom surface together form a closed bottom integral surface.

Abstract: A hybrid bone plate has a first plate portion, having a first top surface and a first bottom surface and comprises a hard titanium alloy. A second plate portion has a second top surface and a second bottom surface and comprises a pure titanium or a soft titanium alloy. The first plate portion has a higher material yield strength than the second plate portion. The first plate portion and the second plate portion are connected to each other at a transition region by for example welding wherein in the transition region the first top surface and the second top surface together form a closed top integral surface and the first bottom surface and the second bottom surface together form a closed bottom integral surface.

Abstract: The free-flow pump comprises an impeller (11, 22, 33) with an impeller base that is constituted by a front side (14, 5 24) of a hub body (12, 23) projecting at the center of the impeller (11, 22, 33) and by a disk surface (18, 28) located deeper than the front side (14, 24) of the hub body (12, 23) and reaching to an outer circumference of the impeller with its maximum depth. The disk surface (18, 28) is provided with vanes (19, 29, 34) comprising open vane front sides (20, 30, 35) adjoining the hub body (12, 23) at their inner end and extending from there to the outer circumference of the impeller (11, 22, 33). To avoid material accretions in front of the impeller (11, 22, 33) it is suggested that at least within an inner third of its radius, the impeller base is not located deeper with respect to the inner end of the vane front sides (20, 30, 35) than at most one sixth of the height difference (H) between the inner end of the vane front sides (20, 30, 35) and the maximum depth of the disk surface (18, 28).

Abstract: The free-flow pump comprises an impeller (11, 22, 33) with an impeller base that is constituted by a front side (14, 5 24) of a hub body (12, 23) projecting at the center of the impeller (11, 22, 33) and by a disk surface (18, 28) located deeper than the front side (14, 24) of the hub body (12, 23) and reaching to an outer circumference of the impeller with its maximum depth. The disk surface (18, 28) is provided with vanes (19, 29, 34) comprising open vane front sides (20, 30, 35) adjoining the hub body (12, 23) at their inner end and extending from there to the outer circumference of the impeller (11, 22, 33). To avoid material accretions in front of the impeller (11, 22, 33) it is suggested that at least within an inner third of its radius, the impeller base is not located deeper with respect to the inner end of the vane front sides (20, 30, 35) than at most one sixth of the height difference (H) between the inner end of the vane front sides (20, 30, 35) and the maximum depth of the disk surface (18, 28).

Abstract: A hybrid bone plate has a first plate portion, having a first top surface and a first bottom surface and comprises a hard titanium alloy. A second plate portion has a second top surface and a second bottom surface and comprises a pure titanium or a soft titanium alloy. The first plate portion has a higher material yield strength than the second plate portion. The first plate portion and the second plate portion are connected to each other at a transition region by for example welding wherein in the transition region the first top surface and the second top surface together form a closed top integral surface and the first bottom surface and the second bottom surface together form a closed bottom integral surface.

Abstract: An impeller plate of an impeller of a centrifugal pump, particularly a channel impeller pump, for pumping liquids with solid or gaseous admixtures, is provided with at least one wide vane that is displaced toward the impeller drive by a distance D so that the impeller chamber is enlarged by a rearward portion thereof. In addition, the impeller comprises at least one auxiliary vane having a center width at between 25%-75% of the width of the wide vane. This arrangement improves particularly the gas transporting ability of the pump.

Abstract: An impeller plate of an impeller of a centrifugal pump, particularly a channel impeller pump, for pumping liquids with solid or gaseous admixtures, is provided with at least one wide vane that is displaced toward the impeller drive by a distance D so that the impeller chamber is enlarged by a rearward portion thereof. In addition, the impeller comprises at least one auxiliary vane having a center width at between 25%-75% of the width of the wide vane. This arrangement improves particularly the gas transporting ability of the pump.