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Title A hazard free screened switch using magnetic flux and glass

Inventor Khan Nawab Ikramullah
  • Filed 2008-06-02
    Published 2008-12-03

Abstract A screened switch comprising; two permanent horseshoe magnets, one located in a safe zone, the other located in a dangerous work zone, the magnets being connected via a glass sheet; two electrical contacts isolated from each other within the safe zone; a third contact which makes or breaks the electrical circuit being fixed on the lower magnet in the dangerous zone; a manual force being applied to the upper magnet in the safe zone causes it to move to and fro moving the lower magnet in the dangerous zone along with it thus making or breaking the circuit.

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GB 2449771 Title: Hazard free screened switch using magnetic flux and glass United States Patent Application 20080309439 –  NAWAB IKRAMULLAH KHAN Mar 25 '13 at 13:19
Genrally, avoid writing in all-caps, unless you see the same custom throughout the site you're using. –  New Alexandria Mar 25 '13 at 14:34
You need to spend more time asking a question. The text in your body does not ask anything that we can answer. Can you restate it? –  New Alexandria Mar 25 '13 at 14:39
I see that 2008/0309439 went abandoned in August 2011. –  George White Mar 25 '13 at 15:28
This question seems to be off topic for this site but I did see in USPTO public PAIR that it was a little less than two years from filing until the first rejection and about three months from response to final rejection. Unfortunately that timing is tracking with the ideal time of three years total that the PTO has as a goal. –  George White Mar 25 '13 at 16:30
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