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Current transfer arrangement for circuit interrupter

Imported: 25 Feb '17 | Published: 06 Aug '02

John C. Opfer, Henry W. Kowalyshen

USPTO - Utility Patents

Abstract

A current transfer arrangement is provided for a circuit interrupter that provides support for the contacts of the circuit interrupter and also provides current transfer between the contacts of the circuit interrupter and the external circuit terminal connection points directly through the end flanges/fittings thereof. The current transfer arrangement includes a first member assembled onto each of the circuit interrupter contacts and clamping members for securing the first member to the end flange. The end flanges include receiving grooves cooperating with the first member.

Description

BRIEF DESCRIPTION OF THE DRAWING

The invention, both as to its organization and method of operation, together with further objects and advantages thereof, will best be understood by reference to the specification taken in conjunction with the accompanying drawing in which:

FIG. 1 is a perspective view of a circuit interrupter with parts cut away for clarity and illustrating the current transfer arrangement in accordance with the present invention;

FIG. 2 is an enlarged perspective view of the circuit interrupter of FIG. 1;

FIGS. 3 and 4 are respective partial front elevational views, partly in section, of bottom and top ends respectively of the circuit interrupter of FIG. 1;

FIG. 5 is an elevational view of a contact support/current transfer member of the current transfer arrangement of FIGS. 1-4; and

FIG. 6 is an elevational view of a retainer clip member of the current transfer arrangement of FIGS.

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Claims

1. A current transfer arrangement for a circuit interrupter that has first and second contact members that are relatively movable and an elongated housing with first and second ends and a conductive end flange at each of the first and second ends, each of the end flanges having a central opening and a circumferential flange surface, the current transfer arrangement comprising:

2. The current transfer arrangement of claim 1 wherein the first and second contact members each comprise a threaded end and a retaining nut for affixing said first member via threading onto the threaded end.

3. The current transfer arrangement of claim 1 wherein said first member is planar.

4. The current transfer arrangement of claim 1 wherein said end flange is cylindrical.

5. The current transfer arrangement of claim 1 further comprising a second member for cooperating with at least one of the conductive end flanges for providing an end closure for the elongated housing.

6. The current transfer arrangement of claim 5 wherein said second member is non-conductive.

7. A current transfer arrangement for a circuit interrupter that has first and second contact members that are relatively movable and an elongated housing with conductive end flanges at either end thereof, the end flanges having central openings, the current transfer arrangement comprising: