Supports – Stand – Understructure
Patent
1974-12-09
1976-11-02
Foss, J. Franklin
Supports
Stand
Understructure
16 42T, A47B 9106
Patent
active
039892123
ABSTRACT:
A chair seat and supporting base for the seat, each of which can be of unitary construction. The base is formed from a plastic material and has legs, the side walls of which merge smoothly into depending peripheral skirts of an upper supporting portion of the base. The legs have a plurality of vertical strengthening webs which are unexposed when the base is in its normal upright position. In addition, there is a grid-work of longitudinal and transverse walls each of which is vertical and which provide additional beam strength and rigidity to the base. Several arrangements are provided for securing a seat-back shell to different embodiments of the base. A unique glide arrangement is also disclosed which permits severing the legs at a desired height to provide chairs of different heights while providing a flat floor engaging glide that is secured against removal, for example, by ultrasonically bonding the glide to the foot of the chair leg.
REFERENCES:
patent: 2543592 (1951-02-01), O'Connor
patent: 2588417 (1952-03-01), Schladermundt
patent: 2710027 (1955-06-01), Husgen
patent: 2868602 (1959-01-01), Drezner
patent: 3520507 (1970-07-01), Strong
patent: 3634894 (1972-01-01), Harbison
patent: 3698150 (1972-10-01), Anderson
patent: 3701450 (1972-10-01), Belzberg
Foss J. Franklin
Kruger Walter
Royal Seating Corporation
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