Ergonomic two-thumb keyboard

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.

Claims

The ornamental design for a ergonomic two-thumb keyboard, as shown and described.

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Inventors:	Gambaro; Thom (Portland, OR)
Appl. No.:	D/177,348
Filed:	March 6, 2003

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Current U.S. Class:	D14/391
Current International Class:	1402
Field of Search:	;D14/341-345,392,333,396,398 ;D18/1,2,7 ;178/17A,17C ;200/5A,5R,6A,6R ;235/145A,145R ;345/161,168 ;341/22,23 ;400/489

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References Cited [Referenced By]

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U.S. Patent Documents

2369807	February 1945	Solon
3022878	February 1962	Seibel et al.
3428747	February 1969	Alferieff
4020527	May 1977	O'Neill
4065650	December 1977	Lou
D258061	January 1981	Foreman
4244659	January 1981	Malt
4332493	June 1982	Einbinder
4360892	November 1982	Endfield
4442506	April 1984	Endfield
4517424	May 1985	Kroczynski
4579470	April 1986	Casey
4584443	April 1986	Yaeger
4597681	July 1986	Hodges
D285200	August 1986	Bressler et al.
4687200	August 1987	Shirai
4787051	November 1988	Olson
4791408	December 1988	Heusinkveld
4824268	April 1989	Diernisse
4849732	July 1989	Dolenc
4861269	August 1989	Meenen, Jr.
4913573	April 1990	Retter
D310543	September 1990	Brown
5119078	June 1992	Grant
5178477	January 1993	Gambaro
5267181	November 1993	George
D347423	May 1994	Conway
5332322	July 1994	Gambaro
5339097	August 1994	Grant
5361083	November 1994	Pollack
5410333	April 1995	Conway
D357911	May 1995	Grant et al.
5416498	May 1995	Grant
5503484	April 1996	Louis
D370669	June 1996	Hargreaves et al.
5610602	March 1997	Hargreaves
5613786	March 1997	Howell et al.
5673040	September 1997	Hargreaves et al.
D405071	February 1999	Gambaro
D434758	December 2000	DiPippo
D434767	December 2000	Elkins et al.
D462681	September 2002	Yoon
6698952	March 2004	Goddard

Foreign Patent Documents

	2725677		Dec 1977		DE
	WO 94/12999		Jun 1994		WO

Other References

"A Rival to QWERTY," British Printer, Sep. 1977. . D.L. Conway, "Contoured Keyboard," I.B.M. Technical Disclosure Bulletin, Aug. 1979, vol. 22, No. 3. . A. Uchiyama, "Kana Keyboard with Palm Rest," I.B.M. Technical Disclosure Bulletin, Feb. 1983, vol. 25, No. 9. . P.J. Kennedy, "Hand-Held Data Input Device," I.B.M. Technical Disclosure Bulletin, Apr. 1984, vol. 26, No. 11..

Primary Examiner: Nunn; Freda S.
Attorney, Agent or Firm: Northwest IP Law Group, LLC