Resources Contact Us Home
Chip for a ball point pen

Image Number 4 for United States Patent #6299375.

The present invention's purpose is to provide a high quality chip for a ball-pointed pen in which air bubbles are not left in the centrifugal separating processing when the refill is manufactured. There is provided a chip for a ball-pointed pen in which a transfer ball held in a ball house at the extremity end in a holder is biased from a rear part by a resilient member, wherein the resilient member is received at its rear end by a plurality of small projections integrally arranged in a circumferential direction at an inner circumferential surface of the metallic holder, thereby when deaeration is performed in the centrifugal separating processing at the manufacturing stage of refill, some air bubbles within the holder are passed between the plurality of small projections and moved smoothly in a rearward direction.

  Recently Added Patents
Lubricating oil compositions
Proximity-based mobile message delivery
Aluminum oxide coated cutting tool and method of manufacturing thereof
Method of providing tailor-made software for hospital departments
Portable massage apparatus
Imaging device
Tool box
  Randomly Featured Patents
Thermally conductive silicone rubber composition
Estimation of frequency offset in a communication system
Microphone support
Crystalline pivaloyloxymethyl d(-)-.alpha.-aminobenzylpenicillinate
Intelligent system for generating and executing a sheet metal bending plan
Database query across processes with change notification
Pressure-sensitive adhesive having broad useful temperature range
Circuit for detecting a clock error in a scanned-image system and related circuits, systems, and methods
Ice machine
Animal trap