US5452960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Children's computer keyboard
Assignee: Individual
•
Filing: 1994-10-27
•
Granted: 1995-09-26
•
Expires: 2014-10-27
Abstract
Abstract A children's computer keyboard includes enlarged keys that are color-coded according to their functions, and a four directional arrow-key pad of unique configuration. Characters on the keys of the children's computer keyboard are also enlarged for improved visibility. The enlarged keys provide wider top surface dimension between keys which provides each key with a larger error free area than a standard sized keyboard thus more tolerant for human error. A keyboard connector/extension cord with separable parts is provided for easy keyboard changing.
Inventors
- 👤 Richard E. Kuhlenschmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:12
CPC Classifications
B; B41; B41J; B41J5/00; B41J5/08; B41J5/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
198 words
A computer keyboard for a computer system comprising: a cursor control arrangement comprising an arrow-key pad device formed with four arrow-keys wherein a) said four arrow-keys each being a right-angled isosolecs triangular shaped key placed on a plane of the computer keyboard to form a square shaped arrow-key pad; b) the apex of one of the four arrow-keys being side by side with the apices of two other arrow-keys and opposite to the apex of a fourth arrow-key, whereby the apices meet at the center of the square shaped arrow-key pad; c) the hypotenuse of each triangular shaped arrow-key forming a side of the square shaped arrow-key pad; d) the hypotenuse of a down arrow-key forming a lower side of the arrow-key pad, the hypotenuse of a left arrow-key forming a left side of the arrow-key pad, the hypotenuse of an up arrow-key forming a top side of the arrow-key pad, and the hypotenuse of a right arrow-key forming a right side of the arrow-key pad; said computer keyboard further comprising a numerical key group, an alphabetic key group, a function key group, and a punctuation key group, each of said groups of keys being a different color.
Claim 2
Dependent Claim
198 words
A computer keyboard for a computer system comprising: a cursor control arrangement comprising an arrow-key pad device formed with four arrow-keys wherein a) said four arrow-keys each being a right-angled isosolecs triangular shaped key placed on a plane of the computer keyboard to form a square shaped arrow-key pad; b) the apex of one of the four arrow-keys being side by side with the apices of two other arrow-keys and opposite to the apex of a fourth arrow-key, whereby the apices meet at the center of the square shaped arrow-key pad; c) the hypotenuse of each triangular shaped arrow-key forming a side of the square shaped arrow-key pad; d) the hypotenuse of a down arrow-key forming a lower side of the arrow-key pad, the hypotenuse of a left arrow-key forming a left side of the arrow-key pad, the hypotenuse of an up arrow-key forming a top side of the arrow-key pad, and the hypotenuse of a right arrow-key forming a right side of the arrow-key pad; said computer keyboard further comprising a numerical key group, an alphabetic key group, a function key group, and a punctuation key group, each of said groups of keys being a different color.
Claim 3
Dependent Claim
22 words
The computer keyboard of claim 1, wherein said groups of keys have enlarged top surfaces relative to those of a standard keyboard.
Claim 4
Dependent Claim
17 words
The computer keyboard of claim 2, wherein the alphabetic key group is arranged in a QWERTY layout.
Claim 5
Dependent Claim
114 words
The arrow-key pad of claim 1 which is at least three finger widths, whereby for right-hand operation by a user, the right middle finger of the user's hand is placed at the center of the arrow-key pad, the right index finger on the left arrow key, and the right ring finger on the right arrow key: the right index finger of the user may enter the left arrow key; the right ring finger of the user may enter the right arrow key; and either the up arrow key or the down arrow key may be entered with the right middle finger of the user by maneuvering the user's right middle finger up or down.
Claim 6
Dependent Claim
80 words
A computer keyboard as in claim 1, further comprising a connecting device connected to the computer keyboard, said connecting device comprising: a) a first cord jack having a plurality of pins that may be connected to a system jack on the computer system; b) a second cord jack having a plurality of pins that may be connected to a keyboard jack on the computer keyboard; and c) separable parts respectively connecting the first cord jack and the second cord jack.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-09-25 | 1999-03-27 | 1999-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-25 | 2003-03-27 | 2003-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-25 | 2007-03-27 | 2007-09-26 | $7700.00 | Window Closed / Lapsed |