Abstract: The present invention relates to a bag having closure profiles combined with a slider (20), characterized in that an end weld (3) made between the closure profiles is shaped according to a geometry which is the complement of the slider (20).

Abstract: The planetary gear according to the invention comprises a sun gear (2) connected to a driven central shaft (20), a ring gear (12), a group of first stepped planetary gears (8, 10) and a group of second stepped planetary gears (4, 6). The large step wheels (4) of the second stepped planetary gears engage the sun gear (2), the small step wheels (6) of the second stepped planetary gears simultaneously engage a pair of adjoining large step wheels (8) of the first stepped planetary gears and all small step wheels (10) of the first stepped planetary gears engage the ring gear (12). The gear allows for high transmission ratios having a small size and low inertia moment and offers excellent properties in relation to efficiency and transmission reliability.

Abstract: An electronic device provides a universal interface between sensors and an acquisition and processing system of the signals originating from the sensors, wherein the various sensors are connected to standardized terminals (1 . . . 6), appearing all identical to the user and comprising energization (M) and amplifying (A, A.sub.p) elements, capable of being adapted to said sensors, and identification means (R.sub.ECG, R.sub.PRE) for automatically recognizing the sensor present in the terminal, so as to allow programming the signal amplification, energization and processing elements.