Electroconductive spring contact unit

Details Electroconductive spring contact unit Electroconductive spring contact unit

1997-06-27

2000-03-28

Brown, Glenn W.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

324757, 3241581, G01R 1067, G01R 104, G01R 3126

Patent

active

060436662

ABSTRACT:
In an electroconductive contact unit including an electroconductive coil member received in an axial bore with the axial ends of the coil member projecting from the axial bore so as to serve as contact pin sections, the contact pin sections are formed by closely wound segments of the coil member while the middle part of the coil member is formed as a compression coil spring section for biasing the contact pin sections. The compression coil spring section includes a coarsely wound segment and a normally wound segment. When in use, the adjacent turns of the coil wire of at least the normally wound segment of the coil member are brought into contact with each other so that the coil member is made electrically equivalent to a cylinder in most part, and can thereby minimize its electric inductance and electric resistance.

REFERENCES:
patent: 5200695 (1993-04-01), Kazama
patent: 5225773 (1993-07-01), Richards
patent: 5461326 (1995-10-01), Woith et al.
patent: 5865632 (1999-02-01), Iwasaki

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