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ANTITHEFT DEVICE FOR MOTOR VEHICLES

  • US 3,603,750 A
  • Filed: 10/02/1969
  • Issued: 09/07/1971
  • Est. Priority Date: 10/03/1968
  • Status: Expired due to Term
First Claim
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1. An antitheft device particularly for motor vehicles having an interrupter secured against unauthorized interference in the high tension circuit of the ignition system between the ignition coil and the distributor comprising a securely fixed casing in said circuit 1, 30 having an interrupter chamber 6, 31, a safety lock in said chamber, an insulating element 7, 32 having a conductor bridge 18, 37 controlled by said safety lock, insulating means 20, 38 on said insulating element for increasing the current gap in said chamber movable between two end positions, a pair of contact arms connected in said circuit extending into said chamber having contacts 10, 11, 33, 34, said contacts being located upon opposite sides of said insulating element so that said insulating element in one position of said end positions in the interrupter casing is lockable by said safety lock 5, 39 to break said high tension circuit and said conductor bridge 18, 37 and in the other of said end positions establishes a connection between said contacts and with one of said contact arms for reestablishing said high tension circuit between the ignition coil and the distributor.

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