Lever arm with tactile contour
AssigneeErgo-Industrial Seating Systems Inc.
InventorsTerry Cassaday, Terrence Cassaday
Life of this patent
Estimating the term…
Abstract
A plurality of levers each having one end adapted for attachment below a chair seat for controlling separate movements of a chair, each said lever having another end presenting a substantially planar surface terminating at a periphery, said periphery defining a geometric shape different from one another so as to tactually distinguish said levers and the associated movements of said chair controlled by said levers.
Claims19
At least two control levers each having one end adapted for attachment to a resting device for controlling movement thereof, and each lever having another end with a tactile contour for identifying said control lever, said contour selected from the group of:
- (a) circular, triangular, square, rectangular, oval, and half circular shapes,
- (b) spherical, pyramidal, cubical, letters and arrow shapes
- wherein said contour of one of said levers is different from said contour of said other lever.
A plurality of levers each having one end adapted for attachment below a chair seat for controlling separate movements of a chair, each said lever having another end presenting a substantially planar surface terminating at a periphery, said periphery defining a geometric shape different from one another so as to tactually distinguish said levers and the associated movements of said chair controlled by said levers.
A chair having a selectively moveable back and seat including:
- (a) a first lever control arm having one end attached below said seat, and another end having a first geometric shape, said first lever control arm activating a selective movement of said back or seat;
- (b) a second lever control arm having one end attached below said seat and another end having a second geometric shape, said second lever control arm activating another selective movement of said back or seat different from said first lever control arm;
- (c) said second geometric shape different from said first geometric shape.
Dependencies are inferred from the claim text.