Patent ID: 8678524

Claim:
A door device for a server rack, comprising: a mounting piece configured to be attached to a front of the server rack by means of mounting holes; a door affixed to said mounting piece via hinges; a spring attached to said mounting piece and said door; said spring is biased toward maintaining said door in a closed position covering a space in the server rack; said door configured to open on said hinges and to be held open on said hinges into the server rack when an electronic module is inserted through said door into said space in the server rack and the electronic module remains in the server rack; said mounting holes configured to receive the electronic module for fastening to the server rack; said spring configured to close said door on said hinges when the electronic module is removed from said space in the server rack; said door configured to close on said hinges and to be closed via said spring out from the server rack when the electronic module is removed from the server rack; wherein said door is one of a series of doors arranged one above another on the server rack; and wherein air flow in the server rack is preserved by said series of doors remaining closed over a series of the space in the server rack when the electronic module is not inserted through said series of doors.