Electronic door locking mechanism

Patent · Tue Oct 21 00:00:00 EDT 1997

OSTI ID:541722

Williams, G L; Kirby, P G

The invention is a motorized linkage for engaging a thumb piece in a door mechanism. The device has an exterior lock assembly with a small battery cell and combination lock. Proper entry by a user of a security code allows the battery to operate a small motor within the exterior lock assembly. The small motor manipulates a cam-plunger which moves an actuator pin into a thumb piece. The user applies a force on to the thumb piece. This force is transmitted by the thumb piece to a latch engagement mechanism by the actuator pin. The latch engagement mechanism operates the door latch. 6 figs.

• Research Organization: Westinghouse Hanford Co
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-87RL10930
• Assignee: RLO; SCA: 055001; PA: EDB-97:140873; SN: 97001865595
• Patent Number(s): US 5,678,868/A/
• Application Number: PAN: 8-563,491; TRN: 97:019546
• OSTI ID: 541722
• Resource Relation: Other Information: PBD: 21 Oct 1997
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
PHYSICAL PROTECTION DEVICES
ENTRY CONTROL SYSTEMS
DESIGN
ELECTRIC MOTORS
ELECTRIC BATTERIES
DOORS