Desk and chair interchangeable device

Details Desk and chair interchangeable device Desk and chair interchangeable device

2007-04-03

2007-04-03

Brown, Peter R. (Department: 3636)

Chairs and seats

Convertible

Table

Reexamination Certificate

active

11353190

ABSTRACT:
A desk and chair interchangeable device which comprises a first plate; a second plate; a supporting unit having a first frame, and a second frame and a bearing frame for connecting the first frame and the second frame; a pivotal unit formed by a first pivotal seat, a second pivotal seat and a linkage; the first pivotal seat serving to pivotally connect one end of the linkage and the first plate; the second pivotal seat serving to pivotally connect another end of the linkage and the second plate so that the first plate can pivotally rotate; and an adjusting unit installed on the first plate for connecting the first plate to the first frame. The adjusting unit serves to adjust the elevation of the first plate; the pivotal unit serves to pivotally rotate the first plate to a horizontal position to be as a table plate.

REFERENCES:
patent: 365344 (1887-06-01), Lawrence
patent: 645102 (1900-03-01), Jennings
patent: 679617 (1901-07-01), Guthridge
patent: 1773791 (1930-08-01), Rohrmann
patent: 1930955 (1933-10-01), Harbottle et al.
patent: 1937886 (1933-12-01), Grose
patent: 2814334 (1957-11-01), Lane
patent: 4606575 (1986-08-01), Kodet
patent: 4801175 (1989-01-01), Albanese
patent: 5833306 (1998-11-01), Breto

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