Arc-extinguishing composition and articles manufactured...

Details Arc-extinguishing composition and articles manufactured... Arc-extinguishing composition and articles manufactured...

2011-02-22

2011-02-22

Eashoo, Mark (Department: 1796)

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Housing structure

C544S200000

Reexamination Certificate

active

07893380

ABSTRACT:
An arc-interrupting compound, such as melamine, and to a method of extinguishing an arc by disposing the composition along the path of the arc, for contacting the arc. In one embodiment, the binder, or at least a portion of the binder, is a polymer that contains a functional group that binds to a coupling agent that is included in the arc-extinguishing composition. The coupling agent ties the polymeric binder to the arc-extinguishing compound, e.g., melamine, to provide new and unexpected physical strength and stability to the composition. In this embodiment, the molded composition, including the arc-interrupting compound coupled to the binder, maintains excellent arc-interrupting capability, while providing chemical stability and electrical insulating properties as well as unexpected physical strength.

REFERENCES:
patent: 2368451 (1945-01-01), D Alelio
patent: 3862265 (1975-01-01), Steinkamp et al.
patent: 4307369 (1981-12-01), Jackson, Jr.
patent: 5070145 (1991-12-01), Guerdoux
patent: 5422418 (1995-06-01), Maj et al.
patent: 5756571 (1998-05-01), Moore
patent: 5814384 (1998-09-01), Akkapeddi et al.
patent: 2002/0156160 (2002-10-01), Martin
Olabisi, O.; “Handbook of Thermoplastics”, 1997, p. 650.

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