Resources Contact Us Home
Molded roller for tape cartridge

Image Number 3 for United States Patent #6129301.

A drive roller for a belt-driven tape cartridge is molded of composite polymeric material in a single step to include outer segment and inner segment integrally formed together with a radial web segment between the outer and inner segments to provide highly concentric operating surfaces on the outer segment and in the inner segment. Electrical conductivity throughout the molded drive roller is provided by including in the composite material a quantity of carbon powder, and selective shrinkage of the composite material during cooling from molding temperatures provides desirable bearing surface within the inner bore through the inner segment. Thrust bearing surfaces at the ends of the inner segment engage mating bearing surfaces that include lubricant traps to inhibit migration of lubricant away from the bearing surfaces of the drive roller. Stepped inner bore and axially ospaced corresponding stepped axle diameters promotes lower frictional drag, provides a reservoir for lubricant, and facilitates removal of the molded component from its molding cavity.

  Recently Added Patents
Vehicle speed verification system and method
Method and system for remapping processing elements in a pipeline of a graphics processing unit
Variable month cross-platform photo calendar builder
Radio communication system, base station device and mobile station device utilizing an intermittent reception
Process for preparing substituted aromatic carboxylic acids
Display system, display control method and computer program
Device for maneuvering a vehicle using maneuvering moves using at least one trajectory
  Randomly Featured Patents
Method and device for collecting commodities
Chucking device for interchangeable holding of probe pins in a coordinate-measuring instrument
Coupling invertible and pluggable module to a circuit board
Optical semiconductor sealing material
Communication system
MEMS sensor suite on a chip
Multi-bit-per-cell flash memory device with non-bijective mapping
Range finding circuit for selecting a consecutive sequence of reorder buffer entries using circular carry lookahead
Process and device for determining of surface structures
Process for preparing polysuccinimides from maleamic acid