Electronic lockbox
US11434660B2 · kind B2 · utility
2Cited by
15References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2019 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Apr 21, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/62
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electronic lockbox uses a rotary actuator with multiple positions to achieve multiple locking states. Multiple positions of the actuator are detected, using optical sensors. The locking mechanism includes an outer sleeve and an inner cylindrical barrel that are coupled with torsion springs. The lockbox has a shackle and a key bin that are retained by the inner barrel when in the locked state, and the barrel can be rotated to either release the shackle or to release the key bin that typically holds a building's key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.