Movable “L” type desk

Details Movable “L” type desk Movable “L” type desk

2006-02-14

2006-02-14

Chen, Jose V. (Department: 3637)

Horizontally supported planar surfaces

Plural related horizontal surfaces

Laterally connected individual units

C108S094000

Reexamination Certificate

active

06997114

ABSTRACT:
A movable “L” type desk comprising a main desk with a main desk board on top; an extension desk with an extension desk board on top; the extension desk connects to one of the main leg of the main desk with a connection mechanism rotatably, a rolling wheel is on the bottom of the extension leg; a connection mechanism consists of a main leg of a main desk with a top and bottom leg, a round shaft is on top of the bottom leg, a hollow connecting tube is installed vertically near the open end of an extension beam, at least one rub-resistant ring is inside the connecting tube, the round shaft passes through the rub-resistant ring, the top of the round shaft passes through the rub-resistant ring and connects to a top ring. The main desk and the extension desk are connected in single point rotatably; the extension desk connects to the main desk without the angle and direction limitation

REFERENCES:
patent: 138406 (1873-04-01), Johnson
patent: 2160144 (1939-05-01), Hiller
patent: 2988413 (1961-06-01), Bergen
patent: 4223613 (1980-09-01), Yoshizawa
patent: 5943966 (1999-08-01), Machado et al.
patent: 5967058 (1999-10-01), Ambrose et al.
patent: 6145448 (2000-11-01), Marschand et al.
patent: 6161487 (2000-12-01), Chang
patent: 6497184 (2002-12-01), Whitesitt

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