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US 5,399,041 AGranted
Writing instrument barrel and method of forming a writing instrument
AssigneeBIC Corporation
InventorEdgar B. Chiswell
Life of this patent
Estimating the term…
Abstract
An writing instrument having an elongated tubular body formed from a thin sheet of material being rolled upon itself. A marking substance positioned within a bore of the body is prevented from leaking through the body by the application of a coating to at least one side of the sheet so that a lining is formed in the bore.
Claims20
A writing instrument comprising:
- an elongated tubular body having a first end and a second end, said tubular body comprising a thin sheet of material rolled upon itself forming an inner bore;
- a writing substance disposed within said inner bore, such that said sheet of material at said inner bore is in contact with said writing substance to form a container for said writing substance;
- and
- a writing tip in communication with said writing substance coupled to said first end of said elongated tubular body in said bore.
1 more element
A writing instrument comprising:
- an elongated tubular body having a first end and a second end, said tubular body comprising a thin sheet of material rolled upon itself forming an inner bore;
- lining means on said sheet of material at said inner bore;
- a writing substance disposed within said inner bore and being substantially enclosed within said lining means, such that said lining means is in direct contact with said writing Substance to form a container for said writing substance;
- and
- a writing tip in communication with said writing substance coupled to said first end of said elongated tubular body in said bore.
2 more elements
A writing instrument comprising:
- an elongated tubular body having a first end and a second end, said tubular body comprising a thin sheet of material rolled upon itself forming an inner bore;
- at least one writing substance disposed within said inner bore, such that said sheet of material at said inner bore is in contact with said writing substance to form a container for said writing substance;
- a first writing tip in communication with said writing substance removably coupled to said first end of said elongated tubular body in said bore;
- and
- a second writing tip in communication with said writing substance removably coupled to said second end of said elongated tubular body in said bore.
2 more elements
A method for forming a writing instrument comprising the steps of:
- rolling a sheet material upon itself to form an elongated tubular body having a longitudinal bore therethrough;
- inserting a writing tip into said bore at a first end of said elongated tubular body;
- and
- filling said bore with a writing substance, such that said writing substance is in substantial contact with said sheet material.
1 more element
A method for forming a writing instrument comprising the steps of:
- applying a leak resistant coating to a portion of at least one side of a thin sheet material;
- rolling said sheet material upon itself to form an elongated tubular body having a longitudinal bore therethrough, such that an inner wall is coated with said leak resistant coating;
- inserting a writing tip into said bore at a first end of said elongated tubular body;
- and
- filling said bore with ink, such that said ink is in substantial contact with said coating.
2 more elements
Dependencies are inferred from the claim text.