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AssigneeRaymond Geddes & Company, Inc.
InventorsEdward John Poels, Sin-Hwa Huang
Estimating the term…
An ink pen refill consists of a single writing point connected to an elongated barrel in which gel ink is stored in distinctly colored layers. At the proximal end of the barrel, just behind the most proximal color band of ink, a quantity of grease is inserted in the barrel to seal the ink within the barrel. In manufacturing the ink pen refill, after installing the elongated barrel on the proximal end of the writing point, a quantity of gel ink of a first particular color is inserted within the barrel just proximal of the writing point using a filling pipe. When the desired quantity of ink has been so inserted, the elongated barrel with the writing point is placed in a centrifuge and is centrifuged to remove any air bubbles contained within the ink. Next, the next color of gel ink is dispensed into the barrel just proximal of the first layer of ink. The entire refill is again centrifuged to remove any bubbles from the newest layer of ink. This process is repeated over and over again until each of the layers of gel ink have been dispensed into the elongated barrel. When the last color has been dispensed, a layer of grease is inserted at the proximal end of the barrel to seal the ink layers in place. In an alternative method, one may fill the elongated barrel with a multiplicity of diverse colors by filling two or more colors for each centrifuging operation.
An ink pen refill, comprising:
A method of making an ink pen refill, including the steps of:
A method of making an ink pen refill, including the steps of:
An ink pen refill, comprising:
A method of making an ink pen refill, including the steps of:
A method of making an ink pen refill, including the steps of:
An ink pen refill, comprising:
Dependencies are inferred from the claim text.