Chairs and seats – Convertible
Patent
1985-11-07
1988-04-12
Dorner, Kenneth J.
Chairs and seats
Convertible
297316, 297423, 297429, A47C 1300
Patent
active
047369825
ABSTRACT:
A chair that converts from a conventional seat and back rest type of chair to a seat and knee rest type of chair utilizes a seat that is pivotally connected to a base support that, when pivoted, is rotated from a generally horizontal plane when used as a conventional chair, to a predetermined angle of tilt. The back rest is also pivotally connected to the base support by a bracket arm that permits the back-knee rest to be moved from a position above the plane of the seat, to support the back of a person sitting on the horizontally positioned seat, to a position below the plane of the seat and at a predetermined angle of tilt to support the knees of a person sitting on the tilted seat.
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patent: D265612 (1982-08-01), Gusrud
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patent: 2666210 (1954-01-01), Wiley
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patent: 3530954 (1970-09-01), Schmidt
patent: 3669493 (1972-06-01), Vowles
patent: 3712666 (1973-01-01), Stoll
patent: 4216994 (1980-08-01), Benoit
patent: 4328991 (1982-05-01), Mengshoel
patent: 4369997 (1983-01-01), Desanta
patent: 4377309 (1983-03-01), Mengshoel
patent: 4614378 (1986-09-01), Picou
Binder Mark W.
Dorner Kenneth J.
Tipton Robert R.
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