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Publication numberUSD502180 S1
Publication typeGrant
Application numberUS 29/177,348
Publication dateFeb 22, 2005
Filing dateMar 6, 2003
Priority dateMar 6, 2003
Also published asUSD538281
Publication number177348, 29177348, US D502180 S1, US D502180S1, US-S1-D502180, USD502180 S1, USD502180S1
InventorsThom Gambaro
Original AssigneeThom Gambaro
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ergonomic two-thumb keyboard
US D502180 S1
Images(4)
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Claims(1)
  1. The ornamental design for a ergonomic two-thumb keyboard, as shown and described.
Description

FIG. 1 is an isometric view of a ergonomic two-thumb keyboard constructed in accordance with the invention showing the left and right thumb keyboards;

FIG. 2 is a bottom isometric view of the ergonomic two-thumb keyboard of FIG. 1 showing the keys arranged for use by the first and second digits of the left and right hands for data entry;

FIG. 3 is a top view of the ergonomic two-thumb keyboard of FIG. 1 and FIG. 2 showing the keys of the device arranged for use by the left and right thumbs for data entry;

FIG. 4 is a bottom view of the ergonomic two-thumb keyboard of FIG. 1 and FIG. 2 showing the keys arranged for use by the first and second digits of the left and right hands for data entry;

FIG. 5 is a top end view of the ergonomic two-thumb keyboard showing a section of the housing of the data entry device of FIG. 1 and FIG. 2;

FIG. 6 is a left side view of the ergonomic two-thumb keyboard showing a section of the housing of the data entry device of FIG. 1 and FIG. 2;

FIG. 7 is a right side view of the ergonomic two-thumb keyboard showing a section of the housing of the data entry device of FIG. 1 and FIG. 2; and,

FIG. 8 is a bottom end view of the ergonomic two-thumb keyboard showing a section of the housing of the data entry device of FIG. 1 and FIG. 2.

Non-Patent Citations
Reference
1"A Rival to QWERTY," British Printer, Sep. 1977.
2A. Uchiyama, "Kana Keyboard with Palm Rest," I.B.M. Technical Disclosure Bulletin, Feb. 1983, vol. 25, No. 9.
3D.L. Conway, "Contoured Keyboard," I.B.M. Technical Disclosure Bulletin, Aug. 1979, vol. 22, No. 3.
4P.J. Kennedy, "Hand-Held Data Input Device," I.B.M. Technical Disclosure Bulletin, Apr. 1984, vol. 26, No. 11.
Classifications
U.S. ClassificationD14/391