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
Focus detection device and imaging apparatus having the same
Cover panel for frame based door lock
Glow in the dark swim goggle frame and band
Illumination unit for a direct-view display
Sulfonated amorphous carbon, process for producing the same and use thereof
Matching geometry generation and display of mammograms and tomosynthesis images
System and method for multi-threaded OFDM channel equalizer
  Randomly Featured Patents
Hose pump
Magnetic crossed-loop antenna
Large optics inspection, tilting, and washing stand
Engine air/fuel ratio sensing device
Two wavelength optical sensor and sensing system
Process for producing a protein-based food
System and method for controlling stopping and starting of a vehicle engine
Processing of lignocellulose materials
Method of web crawling utilizing address mapping