Lap tray

Details Lap tray Lap tray

1980-04-28

1982-01-19

McCall, James T.

Horizontally supported planar surfaces

With structural installation

On top and side of upright wall

108 43, 297194, A47B 504, A47B 308, A47C 762

Patent

active

043110991

ABSTRACT:
An upholstered chair arm mountable tray includes a tray member having hinge knuckles depending from opposite side borders, clamp wings having hinge knuckles at its inner corners aligned with the tray knuckles and hinge pins engaging aligned sets of knuckles, each clamp wing being provided with a medially disposed handle defining convex projection open at its outer end. A helical spring surrounds each hinge pin and has end legs engaging the tray member and a clamp wing to bias the clamp wing into superimposition with the underface of the tray member.

REFERENCES:
patent: 527108 (1894-10-01), Cooper
patent: 1709927 (1929-04-01), Whitney
patent: 2501580 (1950-03-01), Reid
patent: 2690942 (1954-10-01), Marcus
patent: 2787507 (1957-04-01), Powers
patent: 3185113 (1965-05-01), Nathan et al.
patent: 3282230 (1966-11-01), Levy
patent: 3709158 (1973-07-01), Kidd

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