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
Message value indicator
Process for the preparation of protected L-alanine derivatives
Organic light emitting diode device and fabrication method thereof
Method for treating oncological diseases
Portable stand
Imidazole-5-carboxylic acid derivatives, the preparation method therefor and the uses thereof
Wafer-level chip scale package
  Randomly Featured Patents
Memory checking device and method for checking a memory
Method and apparatus for MPEG encoding
Image display panel and image viewer with an image display panel
Hairpiece base and method of manufacture and fitting of hairpiece
Combination lock with variable code
Aluminum bump, reworkable bump, and titanium nitride structure for tab bonding
Inserting device for deformable intraocular lens
Fuel atomization device
Protective parking pad