Chairs and seats – Bottom or back with means to alter contour – Providing support for lower back region
Reexamination Certificate
2008-01-29
2008-01-29
Nelson, Jr., Milton (Department: 3636)
Chairs and seats
Bottom or back with means to alter contour
Providing support for lower back region
C297S284900, C297S423260, C297S217200, C297S217300
Reexamination Certificate
active
10856612
ABSTRACT:
A seat of an apparatus in one example comprises a front subportion and a rear subportion that is adjustable in height and/or angle relative to the front subportion. A backrest of the apparatus in one example is adjustable in shape. Based on a user contact pressure against one or more portions of the seat and/or one or more portions of the backrest, the rear subportion of the seat and the backrest are adjustable between: a first height and/or angle of the rear subportion of the seat and a first shape of the backrest; and a second height and/or angle of the rear subportion of the seat and a second shape of the backrest.
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M. Makhsous, F. Lin, R. Hendrix, M. Hepler, L. Zhang, PhD, et al.; Sitting with Adjustable ischial and Back Supports: Biomechanical Changes; Jun. 2003; 10 pgs.; vol. 28, No. 11, pp. 1113-1122; Lippincott Williams & Wilkins; USA.
M. Makhsous, J. Patel, F. Lin, L. Zhang; Sitting Pressure in a Wheelchair with Adjustable ischial and Back Supports; Poster Presentation; Jun. 19-23, 2003; 15 pgs; Atlanta, GA.
M. Makhsous, F. Lin, E. Nam, S. Taylor; Preventing Pressure Ulcers Using a New Sitting Concept; Nov. 30, 2003; National Institute of Health; Chicago, IL.
Lin Fang
Makhsous Mohsen
Nam Ellis K.
Brill Robert J.
Jr. Milton Nelson
Wood Phillips Katz Clark & Mortimer
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