Patent ID: 7009475
Filing Date: 2006-03-07
Classification: F02N,H01H

Abstract:
1. A starter solenoid switch comprising: a first set of contacts including a first fixed contact and a first movable contact, said first set of contacts being disposed between a battery and a starter motor to make and break an electrical connection therebetween; and a second set of contacts including a second fixed contact and a second movable contact, said second set of contacts being disposed electrically parallel to said first set of contacts between the battery and the starter motor, said first and said second sets of contacts being so configured that the second movable contact makes contact with the second fixed contact to supply a lighter electric current to the starter motor before the first movable contact makes contact with the first fixed contact to supply a heavier electric current to the starter motor, wherein one of the second fixed contact and the second movable contact includes a low-resistance portion at one end thereof and a high-resistance portion that contains more carbon than the low-resistance portion, and wherein the low-resistance and the high-resistance portions are serially disposed along a conducting path of electric current from the battery to the starter motor.