Bracket having a recoverable door

Details Bracket having a recoverable door Bracket having a recoverable door

2000-05-23

2001-10-23

Paumen, Gary (Department: 2833)

Electrical connectors

With contact preventer or retractable cover part

Movably mounted

Reexamination Certificate

active

06305955

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a bracket for receiving an external device such as a transceiver module or the like and, more particularly, to a bracket having a recoverable door which will be opened from an original closed position when the external device is inserted into the bracket, and which will recover to the original closed position when the external device is withdrawn from the bracket.
2. The Prior Art
Brackets have been used in many electrical devices such as personal computers or high frequency appliances for receiving an external electrical device to be inserted thereinto. The bracket is normally installed with a door for avoiding entrance of dust into the bracket, which if accumulated for a specific amount will affect the performance of the inserted electrical device, especially when the inserted electrical device is a high frequency device, such as a gigabit interface converter module.
Earlier efforts to provide a metal door installed in a bracket may be referred to U.S. Pat. No. 5,879,173, wherein a door is hinged with respect to a mounting panel with a shaft thereof and a coil spring is mounted on each shaft end of the door for returning the door to its closed position after the door is opened. Normally, the assembling of the coil spring to the door is cumbersome. Moreover, the coil spring is apt to be detached from the shaft end after several times of operation thus causing malfunction. It is requisite to provide a new structure which can solve the problem as encountered in the conventional bracket using coil springs.
SUMMARY OF THE INVENTION
The primary purpose of the present invention is to provide a new bracket having a new recovery metal door which guarantees itself to be recovered to an original closed position after being opened.
According to one aspect of the present invention there is provided a bracket for receiving an external electrical device. The bracket comprises a dielectric frame and a door rotatably positioned on the dielectric frame by a shaft traversing the door. The shaft terminates as a cam portion at each distal end thereof. A metal shielding is fixingly attached to the dielectric frame and comprises a spring arm proximating to the cam portion of the door. The cam portion of the door is rotated to deform the spring arm of the metal shielding when the external electric device is inserted into the bracket from the door.


REFERENCES:
patent: 5879173 (1999-03-01), Poplawski et al.
patent: 6095862 (1999-03-01), Doye et al.

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