Multiple pen comprising a plurality of writing points of different colors

Claim 1

A MULTIPLE PEN COMPRISING A PLURALITY OF ELONGATED WRITING ELEMENTS WITHIN AN ELONGATED CASING, EACH SAID ELEMENT HAVING A POINT FOR WRITING WITH AN DIFFERENT COLORED INK, SAID ELEMENTS BEING INDIVIDUALLY LENGTHWISE RECIPROCABLE BETWEEN EXTENDED WRITING POSITION AND RETRACTED POSITION, RESILIENT MEANS CONTINUOUSLY URGING ALL SAID WRITING ELEMENTS TOWARD SAID RETRACTED POSITION, A BLOCKING MEMBER ROTATABLE ABOUT SAID AXIS AND ABOUT WHICH SAID WRITING ELEMENTS ARE DISPOSED, SAID BLOCKING MEMBER HAVING ALTERNATE CAVITIES AND PROJECTIONS ABOUT ITS PERIPHERY, EACH WRITING ELEMENT HAVING THREE INWARDLY EXTENDING PROJECTIONS SPACED APART LENGTHWISE ALONG ITS UPPER END, THE UPPER TWO OF SAID THREE PROJECTIONS BEING SPACED APART BY A FIRST CAVITY AND THE LOWER TWO OF SAID THREE PROJECTIONS BEING SPACED APART BY A SECOND CAVITY, THE UPPER AND MIDDLE OF SAID THREE PROJECTIONS HAVING DOWNWARDLY INCLINED LOWER SURFACES THAT INCLINE IN THER SAME DIRECTION, SAID DOWNWARDLY INCLINED SURFACE OF SAID UPPER PROJECTION BEARING AGAINST A BLOCKING MEMBER PROJECTION WHEN THE ASSOCIATED WRITING ELEMENT IS IN SAID WRITING POSITION, SAID INCLINED SURFACE OF SAID MIDDLE PROJECTION BEARING AGAINST A BLOCKING MEMBER PROJECTION WHEN THE ASSOCIATED SAID ELEMENT IS IN SAID RETRACTED POSITION, SAID INCLINED SURFACES BEING DIRECTED IN A SENSE TO IMPOSE TORQUE ABOUT SAID AXIS ON SAID BLOCKING MEMBER PROJECTIONS.