Resources Contact Us Home
Electromechanical device with variable resistance circuit for controlling a load, particularly of an electric motor

Image Number 4 for United States Patent #5867002.

The invention concerns an electromechanical device with variable resistance circuit serving to control a load. The device comprises a connection (10) for a source of power (12), a connection (14) apt to be connected to a load (16) supplied by the source of power (12), a resistance circuit formed by a plurality of branches (B.sub.1, B.sub.2, . . . B.sub.n) mounted in parallel between the connections (10, 14) and each comprising a resistance (R.sub.1, R.sub.2 . . . R.sub.n) in series with a switch (I.sub.1, I.sub.2, . . . I.sub.n) possessing an initial contact state and mechanical means comprising a carriage (20) moveable in translation between several predetermined positions, in each of which this carriage (20) is apt to co-operate with at least one of the switches (I.sub.1, I.sub.2, . . . I.sub.n) in order to modify its initial contact state and vary the intensity of the current traversing the load. Application particularly to the speed control of a fan motor in a heating-ventilation and/or air-conditioning installation of a motor vehicle.

  Recently Added Patents
Method and apparatus for controlling power supply
Mirac proteins
Hydrofluorocarbon refrigerant compositions for heat pump water heaters
Method for distributing advertisements to client devices using an obscured ad monitoring function
Method for improving the performance of browser-based, formula-driven parametric objects
Starch networks as absorbent or superabsorbent materials and their preparation by extrusion
Pattern forming method using printing device and method of manufacturing liquid crystal display device using the same
  Randomly Featured Patents
Bridge sensor with collocated electronics and two-wire interface
Excimer or molecular laser with optimized spectral purity
High energy density capacitor films and capacitors made therefrom
TFT array substrate and the fabrication method thereof
Asphaltene dispersants - inhibitors
Toner for developing electrostatic image, process for producing toner for developing electrostatic image, developer for developing electrostatic image, and process for forming image
Polygonal indexable cutting insert
Body support arrangement
Relay station and method of operating the same
Method for cutting a pork butt to provide pork products with enhanced value