Resources Contact Us Home
Developer storage and dispenser apparatus

Image Number 2 for United States Patent #4739907.

A cylindrical developer storage and dispensing cartridge with a dispensing opening at one end has an integral developer transport mixing and antibridging member rotatably supported within the container which has a first coiled spring element having a cross section substantially the same as the cross section of the container and freely rotatable therein which is wound in the direction to transport developer along its length toward the dispensing opening and a second coiled spring element having a cross section substantially smaller than the first spring element but being substantially concentrically positioned and being attached to the first element but wound in a direction opposite to the first spring element to provide a counter rotating motion relative to the first spring element. The second spring element extends through the central portion of the first spring element and has longitudinal arms at each end attached to at least one of the coils at each end of the first spring element to provide support to the first spring element against compression.

  Recently Added Patents
Mobile terminal including stellar body watching hookup communications function
Systems and methods for facilitating communication with foundation fieldbus linking devices
Film-forming resins as a carrier for topical application of pharmacologically active agents
System and method for monitoring network activity
Porous objects having immobilized encapsulated biomolecules
  Randomly Featured Patents
DNA analysis system
Optical fire detection system
Fluid system having controllable reversible viscosity
Interior equipment mounting structure for a vehicle incorporating head-protecting air bag body
GaN LEDs with improved area and method for making the same
Gas bag restraint device
Polyethylene foams and methods of their production
Oxygen generating system
Feed port for a bird feeder
Priority arbitration of coexisting wireless topologies