Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Liposomes with improved drug retention for treatment of cancer
Method of forming micropattern, method of forming damascene metallization, and semiconductor device and semiconductor memory device fabricated using the same
Fuel cell system with mechanical check valve
Device for accurately measuring concentration of component in blood and control method of the device
Method for execution upon processing of at least one histological sample
Rear bumper for an automobile
Network traffic demotion
  Randomly Featured Patents
Method and system for unified presentation of event booking systems
Small-sized engine operated by fluid
Speech recognition using middle-to-middle context hidden markov models
Control system and methods of verifying operation of at least one wind turbine sensor
Terminal device, content displaying method, and content displaying program
Motor operator with burn-out protection
Load current detecting apparatus of direct current motors
Turboprop carrier structure and an assembly including such a carrier structure
Speed-level calculator and calculating method for dynamic voltage scaling
Key blank with novel profile