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Sequentially operated modules

  • US 10,355,476 B2
  • Filed: 01/04/2017
  • Issued: 07/16/2019
  • Est. Priority Date: 07/15/2009
  • Status: Active Grant
First Claim
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1. A first device for electrically connecting and detachably attaching to a second device and to a third device that are identical to the first device, the first device having first and second ends and comprising:

  • a first electromechanical connector at the first end of the first device, the first electromechanical connector being physically structured to be electrically connectable and detachably mechanically couplable to a second electromechanical connector of the second device;

    a second electromechanical connector at the second end of the first device, the second electromechanical connector of the first device being physically structured to be electrically connectable and detachably mechanically couplable to a first electromechanical connector of the third device;

    an annunciator coupled to be electrically Direct Current (DC) powered from the first electromechanical connector of the first device, the annunciator comprising a visible light emitter for emitting visible light or an audible sound generator for emitting audible sound; and

    a single enclosure for housing the first and second electromechanical connectors of the first device and the annunciator,wherein each of the first and second electromechanical connectors of the first device comprises two Direct Current (DC) power contacts and a signal contact, so that when the first device is mechanically connected between the second and third devices, DC power is passed between the second electromechanical connector of the second device and the first electromechanical connector of the third device,and wherein the first device is operative to activate the annunciator in response to a first signal received from the signal contact of the first electromechanical connector of the first device, and to produce a second signal to the second electromechanical connector of the second device in response to receiving the first signal.

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