Ball bearing cylinder plug and key retention
US6591644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2001 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Jan 19, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7616
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The invention is directed at an electronic lock assembly which is operable by a suitably programmed electronic key. The electronic lock assembly includes a cylinder type locking mechanism, where a solenoid and plunger is provided to electronically lock and unlock a key cylinder, thereby selectively allowing rotation of the key cylinder for operation of the locking mechanism. To prevent rotation of the key cylinder and loading of the solenoid plunger prior to the solenoid receiving an authorized signal to retract the plunger, a stop mechanism is provided which only allows rotation of the key cylinder in predetermined coordination with operation of the solenoid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.