An over-voltage protection plug for telecommunication installations, including a housing with a printed-circuit board, a voltagesurge suppressor, a slider, a spring, an earth plate, a signalling element. Reliable protection against voltage surges is provided, wherein the solder position is loaded to a minimum extent only. The plug is composed of few parts only and further permits automated manufacture at low cost, and which clearly shows the tripped condition at the outside. The slider is pre-lo...

A special-purpose suit is provided, in particular for pilots or vehicle drivers or other individuals whose bodies need to be protected, having an outer protective layer which protects against undesirable external influences, a moisture-permeable and/or vapor-permeable inner layer, and a space-maintaining, fluid-permeable spacer layer which is arranged between the outer protective layer and the inner layer and can be climatically conditioned with the introduction of a fluid, the protective layer,...

A contactor/protection relay type protection switch comprises at least one power pole comprising a mobile contact holder cooperating with fixed contacts. It can be moved by an operating lever coupled to moving parts of a solenoid. The switch includes an elastic device between the end of the lever coupled to the solenoid and a plunger of the contact holder.

The present invention provides input and output buffers which block the charge leakage from the bus to the internal power supply when the bus voltage exceeds the internal power supply voltage or when the buffer is powered down. An isolation transistor is connected in series with a pull-up transistor between the internal power supply and the output terminal which is connected to the bus. A circuit that controls the pull-up transistor in response to an enable signal and a data input signal, contro...

A process of manufacturing protected nucleosides comprises reacting a nucleoside with a protecting reagent in the presence of a regioselective activator to produce a regioselectively protected nucleoside. In some embodiments of the inventive method, an optionally substituted trityl or optionally substituted pixyl group is selectively added to the 5'-O-position of a nucleoside in the presence of lutidine as activator or activator/solvent. The inventive method results in improved selectivity of th...

A protection circuit, to be provided for a circuit arrangement having an inductive load and an FET as an N-channel MOS transistor provided upstream of the load with respect to a flow of power current, the FET controlling an energization state of the load, the protection circuit includes a first connection changer interposed on a connection line between a gate of the FET and a gate drive voltage supply source, the first connection changer changing a connection state between a first connection sta...

Method of control of corn borers attacking or susceptible or expected to attack corn plants whereby an effective amount of a 1-aryl pyrazole insecticidally active ingredient is applied near the corn sown seed. Method of protection of corn plants against European corn borer, whereby an effective amount of a 1-aryl pyrazole insecticidally active ingredient is applied near the corn sown seed.

A protection circuit (13) for an integrated circuit (10) is capable of handling higher externally-provided voltages supplied to internal circuitry within the integrated circuit (10). The protection circuit (13) comprises a zener diode (20), wherein a N+ type diffusion region (38) is separated from a P field implant (40) lying between the N+ type diffusion region (38) and a P+ type diffusion region (39).

A protection headgear against ballistic projectiles for use where a helmet is in-appropriate or where the headgear is wanted not to differ in appearance from conventional headgear and the problem has been the lack of a proper headgear. The problem is solve by providing a protection headgear (1), wherein the protection structures are compose of flexible protective and damping layers (20-25), the headgear's (9) outer and inner surface materials (5, 6, 53; 48, 47, 54, 61) including protection struc...

There has been invented a chemically bonded phosphate corrosion protection material and process for application of the corrosion protection material for corrosion prevention. A slurry of iron oxide and phosphoric acid is used to contact a warm surface of iron, steel or other metal to be treated. In the presence of ferrous ions from the iron, steel or other metal, the slurry reacts to form iron phosphates which form grains chemically bonded onto the surface of the steel.