Deux couches semiconductrices de ce laser forment une jonction tunnel qui permet à un courant électrique assurant le pompage de ce laser de passer d'un miroir de Bragg semiconducteur à dopage N (20) à une couche d'injection à dopage P (16) appartenant à la structure amplificatrice de lumière (12,14,16). Ce miroir de Bragg coopère avec un autre miroir du même type ayant le même dopage (18) pour inc...

A lift-off toilet seat hinge comprising a hinge base member adapted to be mounted on a toilet bowl, a hinge support member adapted to pivotally support a toilet seat, a locking member supported for rotation between a locked position, where the support member is secured to the base member, and an unlocked position, and an indicator for indicating when the locking member is in the locked position. T...

Process for the production of ethers starting from alcohols, in the presence of liquid acid catalysts, essentially comprising the following steps:a) sending a stream containing C4-C10 alcohols to a reaction zone obtaining a product essentially consisting of ethers and the acid catalyst;b) feeding the product essentially consisting of ethers and the acid catalyst to an extraction zone with C4-C10 a...

The system comprises supporting elements (10), or clips, made of resilient material, and uprights (20) provided with retaining flanges for the said supporting elements. Each supporting element is made of spring steel and is V-shaped, with two legs terminating with widened-out retaining feet. The legs have openings for receiving assembly arms (P2) of the ventilated-wall façade panels (P). A crossba...

The present invention relates to a machine for counting and controlling banknotes, for performing automatic deposits. The machine comprises: a banknote supplying station; a pulling unit, arranged downstream of said banknote supplying station and operating on individual banknotes along a direction substantially perpendicular to the longitudinal extension of a said banknote; a banknote conveyor unit...

A folding-glueing apparatus for making box-like cases and the like, comprises a folding and glueing section for folding and glueing cut and ribbed starting sheet elements which section is provided, on the same folding and glueing line, with a movable bridge (15) designed for automatically forming loose stacks of strapped packs of folded and glued boxes or of the mentioned starting spread sheet ele...

PCT No. PCT/IT98/00073 Sec. 371 Date Apr. 29, 1999 Sec. 102(e) Date Apr. 29, 1999 PCT Filed Mar. 31, 1998 PCT Pub. No. WO98/44184 PCT Pub. Date Oct. 8, 1998An automatic ironing machine for ironing the neck and shoulder portion of a cloth article having a bearing framework defining a fixed bottom shaping element, two supporting arms articulated to the framework and a supporting a plate for a top mo...

The present invention relates to a small size high mobility three wheel vehicle for light duty transportation, the main feature of which is that it comprises a frame (2) coupled to a chassis (3) and supporting a central front wheel (10) and two side rear wheels (15). A suspension assembly (20) for the rear wheels (15) is moreover provided, said suspension assembly (20) including swinging forks (21...

In a multi-point-to-point transmission system, a Reed Solomon encoded communication signal is Turbo or Trellis code modulated prior to an orthogonal spreading operation performed on the user signal spectrum and on multi signal beams. The resultant spread signal is transmitted as beams at RF.

PCT No. PCT/IB94/00038 Sec. 371 Date Nov. 14, 1994 Sec. 102(e) Date Nov. 14, 1994 PCT Filed Mar. 11, 1994 PCT Pub. No. WO94/20752 PCT Pub. Date Sep. 15, 1994A solar chimney assembly including a chimney (1) for receiving fluid from a solar heat collector (6, 7), and a turbine (2) driven by the fluid. The solar heat collector, which increases the moisture content and the temperature of the air flowi...

In the splice arrangement the two adjacent railing profile ends are joined by screws to a fixture covering the splice between them. A support plate (2) is welded to each profile so that the assembled railing has two support plates fastened at one end to the inside edges of the slot in the bottom of the railing. Support plates are positioned at the opposite end to the middle region of the railing o...

A device is designed for the adjustment and securing of a handle (10) on a frame (12) by means of a washer (14) and the insertion of spring return device (18) in between these. A supporting element (15) supports the handle (10) and is fixed to the washer (14) by means of a snap ring (16). The washer (14) and the supporting element (15) have complementary angular adjustment devices (19, 20) that se...

Sanding truck for a vehicle for the sanding of a road or equivalent, said sanding truck comprising a load space (1) for sanding material; sanding means (2) for passing sanding material from the load space onto the surface to be sanded; a transfer gear (3) for moving sanding material to the sanding means; an exhaust gas channel (4) disposed in conjunction with the load space, into which channel the...