Electro-mechanical lock with rotary bolt
US5134870A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1990 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Jun 6, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7424
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electronic lock for a safe door is provided with a digital keypad entry device, a mechanical bolt works and associated handle for retracting the door bolts, and a spring biased rotary bolt which engages and precludes operation of the bolt works, such that upon entry of the predetermined code into the entry device, an electric signal causes a solenoid to energize and retract its armature from a blocking position relative the rotary bolt, further enabling the rotary bolt to rotate against its bias in response to mechanical maniupulation of the handle by the user to retract the door bolts. Unauthorized operation of the safe handle causes the rotary bolt to be locked into a fixed position, preventing entry into the safe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.