Patent ID: 6764240
Filing Date: 2004-07-20
Classification: B43K

Abstract:
An automatically-adjusting refill seat mechanism for a writing instrument, said mechanism comprising:a first element having a first seating surface configured and adapted to engage a first seating end of a first type of refill having a first length, said first element configured and sized to fit in a writing instrument having an internal chamber for containing refills, said first element having a longitudinal axis; a second element having a second seating surface configured and adapted to engage a seating end of a second type of refill having a second length, said second element axially movable with respect to said first element from a first position to a second position, said second element configured and adapted to allow the first seating end of the first type of refill to be inserted therethrough for contacting said first seating surface; wherein: inserting the first type of refill in the writing instrument engages said first seating surface defining a first refill chamber length; and inserting the second type of refill in the writing instrument engages at least said second seating surface and automatically moves said second element from said first position to said second position defining a second refill chamber length.