Coating element for an electrical junction and method

Electrical connectors – Including elastomeric or nonmetallic conductive portion

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

06733308

ABSTRACT:

CROSS-REFERENCE TO RELATED APPLICATIONS
This application claims the benefit of a priority claim under 35 USC 119 to French Patent Application No. 01 08125 filed Jun. 20, 2001, the entire contents of which are hereby incorporated by reference.
BACKGROUND OF THE INVENTION
This invention is directed to the field of electrical circuits, in particular to electrical junctions. More particularly, this invention is directed to high-voltage circuits or junctions, and more specifically to such circuits or junctions as used in radiology. Still further, this invention is directed to a coating element for an electrical circuit or junction.
In high-voltage circuits carrying high voltages on the order of several tens of kilovolts, the parts in the form of points are the site of very high electric field densities. Such densities sometimes lead to a breakdown between the points and ground potential. To avoid breakdown at the points, the points are tipped with balls having a greater radius of curvature than the points thereby substantially reducing the surface density of the electric field per unit area and hence the risk of breakdown is diminished. Such a practice, comprising “rounding” the edges of the junctions, is difficult and costly to implement at all the points of the electrical circuit or junction that may give rise to the breakdown. For the same reason, the diameter of the connecting wires is increased to lessen the electric field density per unit area of the conductor wire. However, the conductors are difficult to handle because of their diameter, and hence costly to manufacture.
BRIEF DESCRIPTION OF THE INVENTION
An embodiment of the invention provides a coating element for an electrical circuit or junction that will substantially diminish the surface electric field density at the periphery of the coating element.
In an embodiment of the invention, the electrical junction is surrounded with a coating element in a plastic material laden or in which there is dispersed conductive particles.
In an embodiment of the invention, the plastic material may be a polymer, an elastomer, a polyurethane or a silicone, and the conductive particles may be a powder of a metal such as aluminum or stainless steel or graphite. In an embodiment of the invention, the electrical conductor material has an electrical resistivity between about 1 ohm-cm and about 100 kilohm-cm.
In an embodiment of the invention, the coating element is yielding so as to adapt to the shape of the electrical circuit or junction.


REFERENCES:
patent: 2379942 (1945-07-01), Webber
patent: 3344391 (1967-09-01), Ruete
patent: 3725846 (1973-04-01), Strain
patent: 4214121 (1980-07-01), Charneski et al.
patent: 4304616 (1981-12-01), Richardson
patent: 4828512 (1989-05-01), McCormick et al.
patent: 5006286 (1991-04-01), Dery et al.
patent: 5823802 (1998-10-01), Bartley
patent: 978606 (1964-12-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Coating element for an electrical junction and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coating element for an electrical junction and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coating element for an electrical junction and method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3227010

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.