Adjustable switching mechanism for series coupled vaccum...

Details Adjustable switching mechanism for series coupled vaccum... Adjustable switching mechanism for series coupled vaccum...

2007-09-27

2009-06-23

Barrera, Ramon M (Department: 2832)

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Multiple break

C218S004000, C218S005000, C218S007000

Reexamination Certificate

active

07550691

ABSTRACT:
An adjustable switching mechanism for adjusting the tolerance of electrical contacts of series coupled vacuum interrupters includes a primary drawbar coupled to a secondary drawbar via a pair of coupling pull rods. The primary and secondary drawbars are adjustably attached to the coupling pull rods by a plurality of adjustable compression assemblies. The primary drawbar also includes an attachment bore having threads of one dimension to threadably receive a double-threaded part therethrough. The double-threaded part also includes an internal bore having threads of another dimension in which to receive a coupling screw. As such, the tolerance between the electrical contacts of the vacuum interrupters may be changed through adjustment of the compression assemblies and the rotation of the double-threaded part.

REFERENCES:
patent: 3159731 (1964-12-01), Luehring
Joslyn VBM Fault InterrupterJoslyn Hi-Voltage Corporation; D.B. 750-502 Revised Apr. 1992.

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