United States Patent
US Patent 5197699: Wrist rest
US 5197699 · granted 1993-03-30
| Patent Number | 5197699 |
|---|---|
| Title | Wrist rest |
| Filed | 1991-04-24 |
| Granted | 1993-03-30 |
| Inventor(s) | Mark R. Smith, Philip G. Wessels |
| Assignee | Silicon Sports Inc |
| CPC Classification | G06F3/03, G06F3/039, G06F3/033 |
| Number of Claims | 2 |
Abstract
A wrist rest (1) of specially designed height and other characteristics is provided for reducing strain on the wrists and hands of a keyboard operator or a similar user of computer accessories. The rest (1) is made to be placed in front of the keyboard or accessory being used, and may be designed to have a particular firmness for comfort. In some embodiments the rest has two foam rubber layers (20,30) about 3/4 inch thick total; the bottom surface has no “skin”, to prevent the rest from slipping, while the upper surface has a smooth covering (10) so hands may slide around easily and comfortably. In order to allow rests designed for a normal keyboard to be adapted for use with an especially long keyboard, or with an accessory like a mousepad (4), one embodiment (3) of the invention has contours (101) which can interlock with similar contours (100) on an extension pad (2); these contours are also designed to be easily and inexpensively manufactured.
Claims Summary
1. A wrist rest having a length, depth, and thickness, comprisinga) a support layer;