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
System and method of verification of analog circuits
Power conversion device for electric vehicle
Control unit including a computing device and a peripheral module which are interconnected via a serial multiwire bus
System, method, and computer readable medium for a force-based wheelchair joystick
Automatic pill dispenser
Pet fish burial pod
Battery pack with interchangeable circuit substrates
  Randomly Featured Patents
Remote discovery and storage of a path maximum transmission unit (PMTU) value
Polymer covered vaso-occlusive devices and methods of producing such devices
Integrated metal-insulator-metal capacitor and metal gate transistor
Control equipment for an electro-magnetic linear motor
Braking system for braking a rotor relative to a stator
Air bag device
Light scattering guiding light source device and liquid crystal display
Cooling plate structure of cooling apparatus and transmitter with the cooling apparatus
Disc opener assembly for a seed planter
Terminal protection cap