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Security unit

  • US 3,338,077 A
  • Filed: 11/24/1964
  • Issued: 08/29/1967
  • Est. Priority Date: 02/01/1964
  • Status: Expired due to Term
First Claim
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1. A SECURITY UNIT TO PREVENT THE UNAUTHORIZED OPERATION OF A MOTOR CAR, COMPRISING A CASING, A ROTATABLE CYLINDER LOCK, COMPRISING A ROTOR, A MULTIPLE CONTACT ROTARY SWITCH MOUNTED FIXEDLY ON THE ROTOR OF SAID CYLINDER LOCK, AND HAVING AN OPEN CIRCUIT POSITION AND A CLOSED CIRCUIT POSITION, AN ELECTRIC CIRCUIT CONNECTED TO SAID SWITCH, A DISPLACEABLE DRIVING CONTROL MEMBER HAVING A RADIAL APERTURE, A MANUALLY OPERATED LINEARLY DISPLACEABLE LOCKING MEMBER MOUNTED LATERALLY OF AND ADJACENT SAID CYLINDER LOCK AND FOR BEING LONGITUDINALLY DISPLACED TO ENGAGE SAID RADIAL APERTURE IN SAID CONTROL MEMBER AND HAVING A PERIPHERAL LOCKING GROOVE, SAID CYLINDER LOCK HAVING A RESILIENTLY RADIALLY DISPLACEABLE STUD THEREIN AND CARRIED THEREWITH AND DISPLACEABLE AGAINST THE SURFACE OF SAID LOCKING MEMBER WHEREIN SAID GROOVE IS FORMED WHEN SAID CYLINDER LOCK SWITCH HAS BEEN ROTATED TO ITS OPEN CIRCUIT POSITION, MEANS FOR RETAINING SAID LOCKING MEMBER WITHDRAWN FROM SAID CONTROL MEMBER WHEN SAID CYLINDER LOCK IS IN ITS CIRCUIT CLOSING POSITION AND SAID CYLINDER LOCK, SAID CONTROL MEMBER AND SAID LOCKING MEMBER EXTENDING INTO SAID CASING.

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