Automatically winding window shade

Details Automatically winding window shade Automatically winding window shade

1985-07-31

1987-03-31

Machado, Reinaldo P.

Flexible or portable closure, partition, or panel

Roll type

With brake or stop

160320, E06B 924, E06B 9206

Patent

active

046535675

ABSTRACT:
In a window shade which automatically winds up by a releasable spring mechanism, mounted in a rotatable shaft, a roll for a cord is secured to the end of the shaft. A free end of the cord is secured to the roll. The amount of the cord to be wound up on the roll corresponds to the entire winding length of the shade material. The cord forms a loop at which a hand grip is suspended.

REFERENCES:
patent: 98384 (1869-12-01), Imback
patent: 105871 (1870-07-01), Wilhelm
patent: 166561 (1875-08-01), Seehausen
patent: 201799 (1878-03-01), Lash
patent: 1417298 (1922-05-01), Brock
patent: 1469842 (1923-10-01), Livingston
patent: 2445452 (1948-07-01), Peed
patent: 4347885 (1982-09-01), Knorring
patent: 4424851 (1984-01-01), Kohayakawa

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