DEWEY D BLOCKSMA
Medical Practice in Holland, MI
License number
Michigan 4301030510
Expiration Date
Jan 31, 1982
Category
Medicine
Type
Medical Doctor
Address
Address
Holland, MI 49423
Professional information
Improved Chair With Convex Upper Backrest And Forward Seat Surfaces
US Patent:
4783121, Nov 8, 1988
Filed:
May 11, 1987
Appl. No.:
7/048084
Inventors:
Harley E. Luyk - Hudsonville MI
Dewey D. Blocksma - Holland MI
Dewey D. Blocksma - Holland MI
International Classification:
A47C 300
US Classification:
297300
Abstract:
An improved chair (10) having convex back rest portions (11a) and a convex seat front portion (13) is described. The seat is designed to externally rotate the hip joints (P. sub. 7 and P. sub. 8) of a seated person P towards the floor or other support surface. The convex back rest portions and seat rest portions preferably include flexible segments (A and E) for increased support. The chair provides greater comfort and body support.