Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Light-emitting device package and method of manufacturing the same
Plasmon generator includes three metal layers for thermally-assisted magnetic recording
Communication device and two-dimensional communication system using the same
Display apparatus and control method thereof
Laser processing a multi-device panel
Detection of procedural deficiency across multiple business applications
Method for programming non-volatile memory device and apparatuses performing the method
  Randomly Featured Patents
Carnation plant named `CFPC Fresco`
Disposable one-piece container closure and eating utensil
Memory saving electronic dictionary system for spell checking based on noun suffix
Miter joint for hollow plastic frame members
Tubing connector for a breast pump assembly
Three-phase hybrid AC-voltage/AC-voltage direct converter having minimal complexity and high commutation security
Printing device, program for controlling printing device, method of controlling printing device, printing data creating device, program for controlling printing data and method of creating pri
Wrapper for a bunch of flowers
Fluorescent lamp discharge tube having electrostatically coated envelope
Personal identity verification process and system