Horizontally supported planar surfaces – Plural related horizontal surfaces – Coplanar extension surface
Patent
1985-09-19
1988-01-12
Dorner, Kenneth J.
Horizontally supported planar surfaces
Plural related horizontal surfaces
Coplanar extension surface
108143, A47B 106
Patent
active
047183543
ABSTRACT:
An extensible table comprises a rigid panel defining the working plane of the table in a condition of minimum extension thereof and at least one structure for extending the panel including a frame connected to the panels so as to be slidable in a direction parallel to the plane of the panel and movable between an extreme retracted position within the panel and an extreme extended position in which the frame projects from one side of the panel. The table further includes a flexible covering sheet fixed to the panel and having a part projecting from the panel and extending in the direction of sliding of the frame, and guides for the flexible sheet carried by the frame and engaged by the flexible sheet so that the latter has a first pass arranged to constitute an elongation of the working plane and a second pass guided beneath the first pass; the lengths of the first and second passes being a minimum and a maximum respectively in the completely retracted position of the frame and a maximum and a minimum respectively in the completely extended position of the frame.
REFERENCES:
patent: 457443 (1891-08-01), Pickett
patent: 542139 (1895-07-01), Brodin
patent: 555727 (1896-03-01), Loomis
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patent: 711042 (1902-10-01), Dusenbery
patent: 835790 (1906-11-01), Holm
patent: 868423 (1907-10-01), Fuller
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patent: 2848291 (1958-08-01), Hafekost et al.
patent: 2937765 (1960-05-01), Shank
Castilia S.p.A.
Chen José V.
Dorner Kenneth J.
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