Illumination – Light modifier – Translucent or opaque
Patent
1995-05-25
1996-11-05
Lazarus, Ira S.
Illumination
Light modifier
Translucent or opaque
362351, 493950, F21V 100
Patent
active
055712800
ABSTRACT:
A lampshade made of a sheet of aluminum which is shaped by photochemical etching to form a one piece blank having six trapezoidally shaped side wall panels connected to one another in sequence in side-by-side relationship by fold lines, a plurality of locking tabs extending out from the side wall panel at one end of the sequence, an auxiliary panel extending out from the side wall panel at the other end of the sequence, and a plurality of locking slots formed on the auxiliary panel for engagement by the locking tabs to hold together the side wall panels at the ends of the sequence so as to form the lampshade. The blank is further shaped to include a first reinforcing flap hingedly connected to the top edge of each side wall panel by a fold line, a second reinforcing flap hingedly connected to the bottom edge of each flap by a fold line and a third reinforcing flap hingedly connected to at least some of the first reinforcing flaps, also each by a fold line, and a holding tab extending out from at least some of the side panels and being bendable into a holder for a leg of a spider which may be used to mount the lampshade on a lamp.
REFERENCES:
patent: 75418 (1868-03-01), Hartshorn
patent: 86987 (1869-02-01), Laws
patent: 103928 (1870-06-01), Read, Jr.
patent: 4428030 (1984-01-01), Baliozian
patent: 4616293 (1986-10-01), Baliozian
patent: 5051879 (1991-09-01), Bunger
patent: 5264996 (1993-11-01), Bek, Jr. et al.
Lazarus Ira S.
Photofabrication Engineering Inc.
Sember Thomas M.
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