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
Information processing using batch setting information
Circuits for prevention of reverse leakage in charge pumps
Control device for radiation imaging apparatus and control method therefor
Maize variety hybrid X03A157
Fluid pressure responsive electric switch
Phase-change memory device having multiple diodes
Apparatus and method for controlling a tunable matching network in a wireless network
  Randomly Featured Patents
Substantially pure dicyclohexyl ammonium 6-.beta.-bromo-penicillanate
Composite gas-generating material for gas-actuated car safety devices
Gas burner
Sorbent-based fluid storage and dispensing system with high efficiency sorbent medium
Phenyloxazolidinones having a C-C bond to 4-8 membered heterocyclic rings
Charge pump rush current limiting circuit
Tape recorder with stop detecting mechanism
Method of producing a toroidal road vehicle tire carcass, and carcass produced thereby
Eyecup insert for night vision goggles
Multiple sensor apparatus and method