AMIEL W FRANCKE
Optometry in Washington, DC
License number
Pennsylvania OE003041L
Category
Optometry
Type
Optometrist
Address
Address
2
Washington, DC 20036
Pennsylvania
Pennsylvania
Professional information
Variable Speed Balance Or Teeter Board
US Patent:
4491318, Jan 1, 1985
Filed:
Sep 30, 1982
Appl. No.:
6/429028
Inventors:
Amiel W. Francke - Washington DC
International Classification:
A63B 2304
US Classification:
272146
Abstract:
A variable speed balance or teeter board including a platform, a fulcrum extending downwardly from the bottom of the platform into engagement with a supporting surface. The fulcrum comprising a variety of selectively used members of different shape and height for varying the angularity of the platform tilting action, and damping means comprising a plurality of members of different compressibility selectively or collectively interposed between the platform and the supporting surface for varying the speed of the tilting action of the platform upon application of unevenly distributed weight to the top of the platform, the particular damping member employed being dependent upon the ability of the individual using the balance board.