Electronic stylus with writing feel
AssigneeA.T. Cross Company
InventorsMitchell Berkson, David Arthur
Life of this patent
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Abstract
A non-marking, writing system simulates a physical writing system which has characteristic ranges of writing resistance, sound, resilience and thermal conductivity. The non-marking writing system includes a non-marking writing instrument having an elongated shank with opposite ends. A non-marking tip is connected to one end of the shank for engagement against and movement across a writing surface. The writing surface onto and across which the tip is moved for non-marking writing, creates an actual writing resistance. The tip is structured and made of selected material and the writing surface is made of selected material so that the actual writing resistance falls within the characteristic range of writing resistance for the physical writing system.
Claims49
A non-marking, writing system which simulates a selected physical writing system having characteristic ranges of writing resistance, sound, resilience and thermal conductivity, the non-marking writing system comprising:
- a non-marking writing instrument having an elongated shank with opposite ends;
- a non-marking tip connected to one end of the shank for engagement against and movement across a writing surface;
- a writing surface onto and across which the tip is moved for non-marking writing under an actual writing resistance;
- and
- the tip being structured and made of selected material and the writing surface being made of selected material so that the actual writing resistance falls within the characteristic range of writing resistance for the selected physical writing system;
- movement of the tip onto and across the writing surface producing sound, the system including selecting the structure and material of the tip and writing surface so that the sound falls within the characteristic range of sound of the selected physical writing system.
A non-marking, writing system which simulates a selected physical writing system having characteristic ranges of writing resistance, sound, resilience and thermal conductivity, the non-marking writing system comprising:
- a non-marking writing instrument having an elongated shank with opposite ends;
- a non-marking tip connected to one end of the shank for engagement against and movement across a writing surface;
- a writing surface onto and across which the tip is moved for non-marking writing under an actual writing resistance;
- and
- the tip being structured and made of selected material and the writing surface being made of selected material so that the actual writing resistance falls within the characteristic range of writing resistance for the selected physical writing system;
- wherein the material of the writing surface has an actual thermal conductivity which is selected to fall within the characteristic range of thermal conductivity of the selected physical writing system.
A non-marking, writing system which simulates a selected physical writing system having characteristic ranges of writing resistance, sound, resilience and thermal conductivity, the non-marking writing system comprising:
- a non-marking writing instrument having an elongated shank with opposite ends;
- a non-marking tip connected to one end of the shank for engagement against and movement across a writing surface;
- a writing surface onto and across which the tip is moved for non-marking writing under an actual writing resistance;
- and
- the tip being structured and made of selected material and the writing surface being made of selected material so that the actual writing resistance falls within the characteristic range of writing resistance for the selected physical writing system;
- the tip comprising a housing having an open end at the one end of the shank, and a dry ball mounted for rotation in the housing and at the one end of the shank, the ball is being made of hard smooth material, the housing being made of softer slippery material so that the ball rotates with low friction in the housing and without lubrication.
A non-marking, writing system which simulates a selected physical writing system having characteristic ranges of writing resistance, sound, resilience and thermal conductivity, the non-marking writing system comprising:
- a non-marking writing instrument having an elongated shank with opposite ends;
- a non-marking tip connected to one end of the shank for engagement against and movement across a writing surface;
- a writing surface onto and across which the tip is moved for non-marking writing under an actual writing resistance;
- and
- the tip being structured and made of selected material and the writing surface being made of selected material so that the actual writing resistance falls within the characteristic range of writing resistance for the selected physical writing system, the actual writing resistance being within the range of about 0.4 to 0.7 N.
A non-marking, writing system which simulates a selected physical writing system having characteristic ranges of writing resistance, sound, resilience and thermal conductivity, the non-marking writing system comprising:
- a non-marking writing instrument having an elongated shank with opposite ends;
- a non-marking tip connected to one end of the shank for engagement against and movement across a writing surface;
- a writing surface onto and across which the tip is moved for non-marking writing under an actual writing resistance, the writing surface being a transparent material coating on a computer screen adapted to be written on, the coating being made of a material selected from the group consisting of polyurethane and silicone elastomers;
- and
- the tip being structured and made of selected material and the writing surface being made of selected material so that the actual writing resistance falls within the characteristic range of writing resistance for the selected physical writing system.
A non-marking, writing instrument which simulates a selected physical writing system having characteristic ranges of writing resistance and sound, the non-marking writing instrument comprising:
- an elongated shank with opposite ends;
- a non-marking tip connected to one end of the shank for engagement against and for movement across a writing surface;
- and
- the writing instrument being structured and made of selected material so that an actual writing resistance caused by movement of the tip across a writing surface falls within the characteristic range of writing resistance for the selected physical writing system;
- the structure and the material of the tip being selected so that the tip produces a characteristic range of sound which falls within the characteristic range of sound for the selected writing instrument.
A non-marking, writing instrument which simulates a selected physical writing system having characteristic ranges of writing resistance and sound, the non-marking writing instrument comprising:
- an elongated shank with opposite ends;
- a non-marking tip connected to one end of the shank for engagement against and for movement across a writing surface;
- and
- the writing instrument being structured and made of selected material so that an actual writing resistance caused by movement of the tip across a writing surface falls within the characteristic range of writing resistance for the selected physical writing system, the actual writing resistance being within the range of about 0.4 to 0.7 N.
A method of reproducing the feel of a selected physical writing system, while writing with a non-marking writing system comprising:
- providing a non-marking writing instrument having an elongated shank with a non-marking tip connected to one end of the shank;
- providing a writing surface onto which and across which the tip is moved for non-marking writing under an actual writing resistance;
- measuring the actual writing resistance;
- selecting the structure and material of the tip and writing surface so that the actual writing resistance falls within the characteristic range of writing resistance for the selected physical writing system;
- and
- selecting the structure and shape of the tip and writing surface so that sound is produced that falls within a characteristic range of sound produced by the selected writing system.
A method of reproducing the feel of a selected physical writing system, while writing with a non-marking writing system comprising:
- providing a non-marking writing instrument having an elongated shank with a non-marking tip connected to one end of the shank;
- providing a writing surface onto which and across which the tip is moved for non-marking writing under an actual writing resistance;
- measuring the actual writing resistance;
- and
- selecting the structure and material of the tip and writing surface so that the actual writing resistance falls within the characteristic range of writing resistance for the selected physical writing system, the writing resistance falling within the range about 0.4 N to about 0.7 N.
A method of reproducing the feel of a selected physical writing system, while writing with a non-marking writing system comprising:
- providing a non-marking writing instrument having an elongated shank with a non-marking tip connected to one end of the shank;
- providing a writing surface onto which and across which the tip is moved for non-marking writing under an actual writing resistance;
- measuring the actual writing resistance;
- and selecting the structure and material of the tip and writing surface so that the actual writing resistance falls within the characteristic range of writing resistance for the selected physical writing system, wherein the actual resilience is selected to be from about 5 to about 9 N/mm.
Dependencies are inferred from the claim text.