Patent ID: 6719450
Filing Date: 2004-04-13
Classification: A47J,B01F,Y10S

Abstract:
A blender comprising:a processing tool; a housing; a motor located within the housing; the processing tool being coupled to the motor to be rotatably driven by the motor; the motor includes a first motor terminal and a second motor terminal; a battery cartridge located within the housing; the battery cartridge adapted to receive at least one battery; the battery cartridge having a first end and a second end; the battery cartridge including a first cartridge terminal and a second cartridge terminal at the second end; a actuator coupled to the first end of the battery cartridge; a circuit board located between the motor and the battery cartridge; the circuit board being adapted to electrically connect to the at least one battery to power the motor; the circuit board including a resilient first contact, a resilient second contact; a third contact, and at least one resistor; wherein the resilient first contact is electrically connected to the first motor terminal through the resistor, the resilient second contact is electrically connected to the second motor terminal; the third contact is electrically connected to the first motor terminal; the resilient first contact being located above the third contact; a first spring attached to the battery cartridge; the first spring extending from the second end of the battery cartridge; wherein the battery cartridge is spaced from the circuit board by the first spring such that the blender is not activated; wherein depressing the actuator compresses the first spring to a first position in which the first cartridge terminal and the second cartridge terminal are in contact with the resilient first contact and the resilient second contact, respectively, to activate the motor to rotate the processing tool at a first speed; wherein depressing the actuator further compresses the first spring further to a second position in which the resilient first contact is flexed to contact the third contact to activate the motor to rotate the processing tool at a second speed; the second speed being greater than the first speed due to the resistor being shunted out of the circuit when the resilient first contact contacts the third contact.