Writing system and ink pen having time-dependent characteristics
OwnerAndrew F. Knightinventor
Life of this patent
Estimating the term…
Abstract
A writing system for producing a writing having time-dependent characteristics includes: a pen including: a reservoir containing a fluid; and a writing tip configured to dispense the fluid to a writing surface, wherein the fluid includes a first chemical; and a writing surface including a second chemical chemically reactive with the first chemical, wherein the chemical reaction between the first and second chemicals has a known time dependence, and wherein an extent of chemical reaction between the first chemical and the second chemical is indicative of a time of dispensing of the fluid to the writing surface.
Claims17
A writing system for producing a writing having time-dependent characteristics, comprising:
- a pen comprising:
- a reservoir containing a fluid;
- and a writing tip configured to dispense the fluid to a writing surface, wherein the fluid comprises a first chemical;
- and
- a writing surface comprising a second chemical chemically reactive with the first chemical,
- wherein the chemical reaction between the first and second chemicals has a known time dependence,
- wherein an extent of chemical reaction between the first chemical and the second chemical is indicative of a time of dispensing of the fluid to the writing surface, and
- wherein the fluid comprises a third chemical and the writing surface comprises a fourth chemical that is chemically reactive with the third chemical such that their chemical reaction causes them to solidify into a solid product.
A method of dating a writing, comprising:
- providing a writing created by a writing system for producing a writing having time-dependent characteristics, the writing system comprising:
- a pen comprising:
- a reservoir containing a fluid;
- and a writing tip configured to dispense the fluid to a writing surface, wherein the fluid comprises a first chemical;
- and
- a writing surface comprising a second chemical chemically reactive with the first chemical,
- wherein the chemical reaction between the first and second chemicals has a known time dependence,
- wherein an extent of chemical reaction between the first chemical and the second chemical is indicative of a time of dispensing of the fluid to the writing surface;
- measuring an extent of chemical reaction between the first and second chemicals;
- and
- determining an approximate time of creation of the writing based at least in part on the measuring.
A method of creating a time-stamped writing, comprising:
- providing a writing system for producing a writing having time-dependent characteristics, the writing system comprising:
- a pen comprising:
- a reservoir containing a fluid;
- and a writing tip configured to dispense the fluid to a writing surface, wherein the fluid comprises a first chemical;
- and
- a writing surface comprising a second chemical chemically reactive with the first chemical,
- wherein the chemical reaction between the first and second chemicals has a known time dependence,
- wherein an extent of chemical reaction between the first chemical and the second chemical is indicative of a time of dispensing of the fluid to the writing surface;
- and
- creating a writing on the writing surface using the pen,
- wherein an approximate time of the creating is ascertainable by determining an extent of chemical reaction between the first and second chemicals.
Dependencies are inferred from the claim text.