Plunger-type contact unit

Details Plunger-type contact unit Plunger-type contact unit

2007-08-23

2009-06-09

Hammond, Briggitte R (Department: 2833)

Electrical connectors

With insulation other than conductor sheath

Plural-contact coupling part

C439S824000

Reexamination Certificate

active

07544102

ABSTRACT:
A contact unit which enables reduction of an interval between contacts to be inserted into a through hole formed in a plate. A contact of an IC socket is formed so that a first flange portion is disposed in a first gap between an upper plate and an intermediate plate while an outside diameter of the first flange portion is set larger than a diameter of an upper through hole of the upper plate and that a second flange portion is disposed in a second gap between an intermediate plate and a lower plate while an outside diameter of a second flange portion is set larger than a diameter of a lower through hole of the lower plate.

REFERENCES:
patent: 6743043 (2004-06-01), Yamada
patent: 6758682 (2004-07-01), Kosmala
patent: 2004/0005791 (2004-01-01), Sato et al.
patent: 2004/0029412 (2004-02-01), Hachuda et al.
patent: 2005/0266734 (2005-12-01), Kazama
patent: 2003-307542 (2003-10-01), None

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