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Case with magnetic over-center mechanism

  • US 10,212,506 B2
  • Filed: 12/21/2017
  • Issued: 02/19/2019
  • Est. Priority Date: 09/30/2015
  • Status: Active Grant
First Claim
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1. A case for a portable listening device, the case comprising:

  • a housing having a cavity to receive the portable listening device;

    a lid attached to the housing with a pivotable joint such that the housing and the lid are arranged in a clamshell configuration allowing the lid to rotate between a closed position where the lid conceals the cavity and an open position where the lid is angularly displaced from the cavity; and

    a plurality of magnetic elements disposed within the housing and the lid, the plurality of magnetic elements configured to create an over-center configuration for the lid where the lid pivots between a first stable position when in the closed position and a second stable position when in the open position, but is in an unstable position in-between the closed position and the open position.

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