Stretching device for a pleated lampshade

Details Stretching device for a pleated lampshade Stretching device for a pleated lampshade

1989-07-14

1991-02-19

Husar, Stephen F.

Illumination

Light modifier

Translucent or opaque

362449, 362434, F21V 106

Patent

active

049949497

ABSTRACT:
A stretching device for stretching a pleated lampshade, comprising an upper ring which inserts into the notches of the lampshade and a lower ring, both mounted on a threaded spindle, with the lower ring fixed or slidably retained and the upper ring slidably retained thereon. An adjusting nut is provided above the upper ring and a compression spring is received on the shaft between the two rings to bias the upper ring toward the adjusting nut.

REFERENCES:
patent: 1839937 (1932-01-01), Venner, Jr.
patent: 4714987 (1987-12-01), Dene
patent: 4758936 (1988-07-01), Maxwell

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