Device for securing a shade to a light fixture

Details Device for securing a shade to a light fixture Device for securing a shade to a light fixture

2006-01-30

2008-08-12

Truong, Bao Q (Department: 2875)

Illumination

Supports

Harp type support

C362S452000, C362S412000, C362S351000, C362S356000

Reexamination Certificate

active

07410277

ABSTRACT:
A device includes a bolt, a nut, and a coupling. The bolt includes a head and a shaft, and the bolt has a first longitudinal axis that passes through a center of the head and the shaft. The shaft has a first set of threads that are disposed on a radially outer surface of the shaft, and the head has a substantially convex surface. The nut has a second set of threads that are disposed on a radially inner surface of the nut, and the second set of threads is structured to threadably engage the first set of threads. The coupling is structured to attach the bolt to an object, and the coupling and the nut are structured to maintain the substantially convex surface of the head in an abutting relationship with a substantially concave surface of the object.

REFERENCES:
patent: 1974947 (1934-09-01), Berger
patent: 2495209 (1950-01-01), Chilo
patent: 2532821 (1950-12-01), Rosenfeld
patent: 2706771 (1955-04-01), Berger
patent: 2745002 (1956-05-01), Hoffman
patent: 2805329 (1957-09-01), Golden
patent: 3016455 (1962-01-01), Goldfine
patent: 4414618 (1983-11-01), Jacobson
patent: 4493011 (1985-01-01), Spector
patent: 4633378 (1986-12-01), Reisman
patent: 4827382 (1989-05-01), Feliks
patent: 5392204 (1995-02-01), Schumaker
patent: 6227680 (2001-05-01), Arndt

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