A screw conveyor intended and formed for use in a decanter centrifuge for separation of solid particles from a fluid compound, comprising a central body, at least one conveyor thread and at least one baffle bridging a flow path formed between different parts of the conveyor thread. The screw conveyor has at least two originally separate parts, each of which comprises a portion of said conveyor thr...

A medical pump, comprising a reservoir having a fluid enclosing portion and a tubular element, the inside of which is arrangeable in fluid communication with the fluid enclosing portion for allowing fluid to pass into the tubular element. The fluid enclosing portion contains a volume of fluid sealed from communication with air and the fluid enclosing portion is adapted to reduce in volume essentia...

A substrate (300) for an RF device includes a plurality of layers (102) of dielectric material cofired in a stack. The plurality of layers (102) is formed from a material having a permittivity. Selected ones of the layers (102) have a pattern of perforations (100) formed in at least one perforated area (104). The perforated areas (104) are generally aligned with one another in the stack to lower o...

Heated flooring module for livestock stables, comprising an upper plaque, f or walking on, essentially level; a hollowed central section, with no bottom surface, whose upper surface is equipped with at least one continuous runnel, adapted to contain heating means that enter and exit the runnel through respective entr y and exit tubular segments, with the abovementioned hollowed central section equ...

A pack (P) of slabs is formed by positioning successive layers of ornamental slabs of stone alternating with supplementary layers of slabs in succession on a support base ( 10 ). A liquid-tight container (C) is then formed around the pack (P) with a peripheral space left around the edges of the layers. The container (C) is then subjected to a vacuum and a settable fluid binder is introduced into t...

A switch (1) for roof lights (2) has: a supporting frame (3); a push-button (7) slidably mounted on the frame (3); a printed circuit, which is associated to the frame (3) and defines two operative positions for a lamp-bulb; and an actuator (13), which is set between the push-button (7) and the printed circuit (8) and is moved by the push-button (7) between the two operative positions; the actuator...

An electronic device for delivering yarn to textile machines comprising a motor ( 1 ), and an electronic control board ( 2 ), which includes a microcontroller, able to control the rotating speed of the motor ( 1 ) and the currents in the phases of said motor ( 1 ); the device has the purpose of adjusting the delivery of each thread ( 11 ), by varying the rotating speed of the motor ( 1 ), so as to...