Claims
- 1. A marking pen assembly comprising: a tubular barrel having an open end and a constricted end; a relatively rigid porous nib projecting from and held by said constricted end and extending into the elongated tubular body of the barrel, and impregnated with soluble coloring matter; a cap removably tightly fitting said open end; and a solvent-absorptive, porous, dimensionally stable plug dimensioned and constructed to fit loosely within said body and snugly about the extended nib when forced into said body.
- 2. Assembly of claim 1 wherein the cap fits within the open end of the tubular barrel and extends into said body toward said nib and, during activation of the pen, is adapted to be used to force the porous plug into said body.
- 3. Assembly of claim 1 wherein said coloring matter is water-soluble food coloring and said plug is water-absorptive.
- 4. Assembly of claim 2 wherein said nib extends substantially through said plug and said cap is dimensioned to fit over the constricted end of the barrel and the projecting tip of said nib for making possible a tandem assembly of said pens.
- 5. Assembly of claim 1 wherein said plug is saturated with a solvent for said coloring matter and is positioned within said body and intimately about said nib, with said cap inserted in said open end and against said plug.
- 6. Assembly of claim 5 wherein said coloring matter is water-soluble food coloring and said solvent is water.
Parent Case Info
This application is a continuation-in-part of my copending application Ser. No. 471,437 filed May 20, 1974, now abandoned.
US Referenced Citations (5)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
471437 |
May 1974 |
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