Extensible device for supporting objects, especially illuminatio

Details Extensible device for supporting objects, especially illuminatio Extensible device for supporting objects, especially illuminatio

1994-10-04

1996-12-10

Ramirez, Ramon O.

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242381, 2483301, 248337, 248338, E04G 300

Patent

active

055823785

ABSTRACT:
A structure composed of articulated rods extending between a fixed attachment point and a free attachment point for the object to be supported. This structure is extensible in the direction of the straight line joining the fixed attachment point and the free attachment point, and is symmetrical about this line and more or less rigid in directions perpendicular to the direction of extension. The spool rotates about a pin inserted in said structure at a point close to the free attachment point. A cord is connected to a spring for winding up the cord. The cord has one end fixed to said structure close to said line at a point between the fixed attachment point and the spool. The other end of the cord is fixed to the circumference of the spool.

REFERENCES:
patent: 400856 (1889-04-01), Kintz
patent: 1501524 (1924-07-01), Cousins
patent: 3672104 (1972-06-01), Luckey
patent: 4300732 (1981-11-01), Gaeta
patent: 4437624 (1984-03-01), Rosenberg
Copy of European Search Report dated Jan. 6, 1995.

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