Patent ID: 8123425

Claim:
A refill adaptor for use in ball point pens refills comprising a main body ( 10 ), comprising of a front part ( 15 ) and a rear shank portion ( 20 ), said front part ( 15 ) and said rear shank portion ( 20 ) being rigidly coupled together with a ring member ( 25 ); said main body ( 10 ) having a capillary tube ( 40 ) throughout its length, said front part ( 15 ) being provided with a front housing ( 35 ) for holding a refill tip ( 55 ) provided with a ball point ( 65 ) for smooth writing, said capillary tube being provided with a ink channel, the internal diameter of said in channel is selected to be about 0.8 mm and the outer diameter of said capillary tube is about 1.8 mm for easy flow of ink from ink reservoir to said ball point ( 65 ).