×

AUTOMATIC DOOR LOCK

  • US 3,830,332 A
  • Filed: 12/01/1972
  • Issued: 08/20/1974
  • Est. Priority Date: 12/01/1972
  • Status: Expired due to Term
First Claim
Patent Images

1. In an automatic door lock for use In an automotive vehicle having a battery and a door, comprising electrical control means operable by power supplied from said battery for controlling said door lock, a locking means for said door for locking and unlocking said door, and actuator means responsive to said control means for operating said locking means to lock and unlock said door, the improvement wherein said control means comprises the combination of:

  • a first circuit including an intermittent current conductor and a first relay having contacts, means for energizing said first relay from the battery through said intermittent current conductor when the vehicle speed is above a predetermined level, a second circuit including a second relay having contacts and a coil connected to the contacts of said first relay and said first circuit, and a third circuit connected to the contacts of said second relay and to said actuator means for operating said actuator means.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×