Electrical jack

Details Electrical jack Electrical jack

1999-06-22

2001-02-20

Abrams, Neil (Department: 2839)

Electrical connectors

Electromagnetic or electrostatic shield

Shielding individually surrounding or interposed between...

C439S939000

Reexamination Certificate

active

06190205

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to an electrical jack, and in particular to an electrical jack having excellent electrical shielding properties.
2. The Prior Art
An electrical jack mounted on a circuit board for receiving a plug to transmit electrical signals is well known in the electronics field. Examples are disclosed in U.S. Pat. No. 5,092,795 and Japanese Patent No. 61-74977.
FIGS. 1 and 2
of the attached drawings respectively show conventional electrical jacks disclosed in the references. An electrical shielding casing encloses the electrical jack for suppressing electromagnetic interference. The conventional jacks, however, do not have good electrical shielding properties. Thus, it is desired to have an electrical jack having excellent electrical shielding properties.
SUMMARY OF THE INVENTION
Accordingly, an object, of the present invention is to provide an electrical jack having excellent electrical shielding properties.
Another object of the present invention is to provide an electrical jack having a double-grounded shielding casing.
A further object of the present invention is to provide an electrical jack having an easily manufactured shielding casing.
To achieve the above objects, an electrical jack in accordance with the present invention comprises an insulative housing containing contact elements therein for engaging with a mating plug. A shielding casing encloses the insulative housing. A grounding member is received in a slot defined in the insulative housing and extends beyond the housing for being electrically grounded. The shielding casing has an extension received in the slot for physically contacting the grounding member thereby grounding the shielding casing. The shielding casing has a resilient flap for being engaged by a grounding member of the mating plug thereby further grounding the shielding casing. The resilient flap is deformed by the mating plug for ensuring proper contact therebetween.


REFERENCES:
patent: 5338215 (1994-08-01), Lee et al.
patent: 5919052 (1999-07-01), Ho
patent: 6050854 (2000-04-01), Fang et al.

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