Willard E Bair
Engineers at 78, Tulsa, OK
License number
Colorado 13160
Issued Date
Feb 15, 1975
Renew Date
Jan 1, 2000
Expiration Date
Jan 1, 2000
Type
Professional Engineer
Address
Address
6802 E 78Th St E 78, Tulsa, OK 74133
Professional information
Game Board
US Patent:
5330197, Jul 19, 1994
Filed:
Feb 11, 1993
Appl. No.:
8/017507
Inventors:
Willard E. Bair - Tulsa OK
International Classification:
A63F 300
US Classification:
273285
Abstract:
A folding game board is provided which consists of a unitary thin plastic member divided into segments by at least one pair of parallel grooves having nadirs separated by a zenith. Each folding segment has one or more ridges on its face, preferably at least two of them in non-parallel planes perpendicular to the face, and a main body or segment of the board having corresponding ridges defining surfaces in non-parallel planes perpendicular to the face, non-parallel planes being aligned so that the mating ridge surfaces provide a frictional interface therebetween when the segments are folded at the nadirs into juxtaposition with the main body of the board. Preferably, one of the nadirs will be shallower than the other of the nadirs so as to increase the force exerted by the folding junction to maximize the frictional normal force. In its preferred embodiment, the game board will be square and the folds will define equal right isosceles corners about the square which symmetrically fold toward the center of the square.