摘要:
A process for manufacturing a membrane of nozzles of a spray device, comprising the steps of laying a substrate, forming a membrane layer on the substrate, forming a plurality of nozzles in the membrane layer, forming a plurality of supply channels in the substrate, each supply channel being substantially aligned in a vertical direction to a respective nozzle of the plurality of nozzles and in direct communication with the respective nozzle.
摘要:
The present invention relates to a multiple-duct tube for centrifugal separators for blood in particular, suitable for connecting a rotating connector to a stationary connector. The multiple-duct tube comprises, in a monolithic structure, a plurality of ducts which have parallel axes. The outer surface of the tube is defined by blended portions of walls of the peripheral ducts, so as to assume a lobate shape in a transverse cross-section.
摘要:
A vertical-axis wind-powered system with photovoltaic cogeneration, for generating electric power, comprising a vertical-axis helical rotor 1 and a system of fixed or moveable statoric shrouds 2 that direct wind onto the rotor while increasing its speed of impact with the rotor 1 in order to enhance the efficiency of the wind-powered generator and enable it to operate even when wind conditions are particularly unfavourable.
摘要:
A filter for body fluids includes a housing with a filtering element. The filtering element is made of a filtering material pleated and wrapped in a cylindrical configuration. The pleated material includes an alternation of long pleats and short pleats. Intermediate length pleats with an intermediate length may also be present. The alternation may include, for example, each long pleat interposed between two short pleats or each long pleat interposed between two pairs of short pleats.
摘要:
An electronic device is formed on a chip of semiconductor material covered by a layer of insulating material. Metal interconnection elements form, on the insulating layer, connection pads to which a soldering material is applied. To permit good heat dissipation, the device has a metal plate partially incorporated in the insulating layer and having a surface which is coplanar with the pads and to which soldering material is applied. The electronic device is secured to a mounting substrate having a corresponding metal plate.
摘要:
The invention provides a device for locking the base of a blood centrifugation cell on a rotatable generally disc shaped chuck plate. The chuck plate encloses a plurality of elastic locators which extend radially a slight distance from the periphery of the plate. The plate further encloses a plurality of locking means which are biased to remain within the dimensions of the plate at rest and which are radially extendable by centrifugal force to extend beyond the periphery of the plate. An annular locking ring engages the base of the cell and extends around the periphery of the chuck plate. The locking ring has a plurality of internal recesses for initially receiving the elastic locators, and the locking means during centrifugation to secure the cell to the chuck plate.