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US 2003/0070909 A1Published application
Tactile keyboard for electrical appliances and equipment
OwnerMichael J. Sullivaninventor
Life of this patent
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Abstract
A tactile keyboard having a plurality of raised separate domed keys capability of being distinguished from each other by touch with the keys being mounted on the upper surface of a polycarbonate layer. The domed keys are formed from a compressible plastic, such as urethane, and form clear lenses to view indicia associated with each of the domed keys. The shape of the domed keys on the polycarbonate surface at their base are defined by ink barriers printed on the surface.
Claims9
A tactile keyboard for providing inputs to electrical devices if electrical circuits comprising
- a flat member having an upper surface,
- said flat member having raised key means affixed to said upper surface,
- said raised key means forming at least one raised key of deformable plastic material and being in operative relation to the electrical device,
- said raised key being manually compressible to activate the electrical device,
- said at least one raised key forming a lens for viewing said upper surface, and
- indicia means being affixed to said flat member in visual position beneath said at least one raised key.
3 more elements
Dependencies are inferred from the claim text.