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
Factor IXa crystals, related complexes and methods
Image processing device, image processing method, and program
Non-visual presentation of information on an electronic wireless device
Lithographic apparatus and device manufacturing method
Soybean cultivar CL1013663
Tracking data eye operating margin for steady state adaptation
Apparatus and method for information display of portable device
  Randomly Featured Patents
Bulky borate activations
Pharmaceutical preparation for the oral administration of dihydropyridines
Electronic card connector
Collection needle
Image recording apparatus, image recording method, storage medium which stores computer-readable program and the same program
Device mounting board and semiconductor apparatus using the same
Process for press fitting a vehicle wheel hub into an integral bearing
Orthogonal electromagnetic flow and diameter sensor system
Memory system with automatic memory configuration
Drain wall for a prefabricated shower module