Supports – Armrest or headrest – Armrest for writer
Patent
1992-09-25
1993-08-10
Chotkowski, Karen J.
Supports
Armrest or headrest
Armrest for writer
248918, 400715, B43L 1500
Patent
active
052341860
ABSTRACT:
An improved wrist rest for use when typing on a typical computer keyboard for reducing the severity of symptoms of hand and wrist repetitive stress ailments such as carpal tunnel syndrome is disclosed. The apparatus includes a rectilinear keyboard support base to which a wrist supporting rail is secured. Cross sections perpendicular to the axis of elongation of the rail have a geometry that includes forward and rearward nodes with a palm depression lying therebetween for supporting the hypothenars of the user's hands. A plane tangential to both forward and rearward nodes of the support rail intersects the plane of the keyboard support surface at a predetermined angle that is equal to the angle of the keyboard's key plane with respect to the horizontal when same is placed on a horizontal work surface.
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patent: 3300250 (1967-01-01), Dollgener et al.
patent: 4482063 (1984-11-01), Berke et al.
patent: 5074511 (1991-12-01), Wilson
patent: 5108057 (1992-04-01), Dandy, III et al.
patent: 5125606 (1992-06-01), Cassano et al.
patent: 5131614 (1992-07-01), Garcia et al.
patent: 5163646 (1992-11-01), Engelhardt
patent: 5183230 (1993-02-01), Walker et al.
CTS Wrist Rest product flyer, Reynolds Computer Supplies, Inc., Roswell, GA 30075.
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