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Plugs, receptacles and hearing aids

  • US 4,539,439 A
  • Filed: 04/18/1983
  • Issued: 09/03/1985
  • Est. Priority Date: 04/18/1983
  • Status: Expired due to Fees
First Claim
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1. An electrical connection cord having a first plug at one end thereof and a second plug at the other end thereof, said cord having a plurality of conductors joining the plugs, each plug having a plurality of contacts, the contacts of said first plug being connected to said conductors in a first circuit configuration, the contacts of said second plug being connected to said conductors in a second circuit configuration different from said first circuit configuration, the contacts of both said plugs being adapted to be plugged one plug at a time into a single receptacle, whereby an electrical connection to said receptacle may be varied dependent on which of said plugs is plugged into said receptacle.

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