Chairs and seats – Movable back – Tiltable
Reexamination Certificate
2000-06-05
2001-10-23
Barfield, Anthony D. (Department: 3636)
Chairs and seats
Movable back
Tiltable
C297S440200
Reexamination Certificate
active
06305747
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a swayable backrest assembly for a chair.
2. Description of the Related Art
Modern people spend considerable time in sitting. A chair with a swayable backrest may provide the user with comfortable feeling. The present invention is intended to provide a swayable backrest assembly to meet this end.
SUMMARY OF THE INVENTION
In accordance with the present invention, a swayable backrest is provided for a chair with a seat. The swayable backrest comprises:
a backrest frame comprising two spaced vertical tubes each having a lower end attached to the seat of the chair, each said vertical tube further including an upper end with a first hole;
a hollow connecting beam being connected between the upper ends of the two vertical tubes, the hollow connecting beam including two transverse slots;
an attaching member including two ends each having a second hole, each said end of the attaching member being extended through an associated said transverse slot, the attaching member being attached to a backrest of the chair to move therewith;
a pivotal tube extending through the first hole of each said vertical tube, the second hole of each said end of the attaching member, and the hollow connecting beam, thereby allowing pivotal movement of the attaching member relative to the backrest frame.
Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 1357826 (1920-11-01), Shaw
patent: 1910760 (1933-05-01), Garrow
patent: 2345926 (1944-04-01), Fields et al.
patent: 2703601 (1955-03-01), Wood
Barfield Anthony D.
Kamrath Alan
Rider Bennett Egan & Arundel LLP
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