Cylinder lock-key combination which includes a side bar; and a lock key
US5517840A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1994 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Jun 2, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7621
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cylinder lock-key combination includes a cylinder housing (2) and a plug (3) provided with a key slot (3a). A row of pin tumblers (5) coact with a side bar (6) in a manner to prevent the side bar moving to its release position unless the correct key (4) is inserted into its operative position in the plug (3). The side bar (6) is activated at the ends of the side bar by one or more driving pins (7) which coact with the key side surface and which are guided in the plug for movement at right angles to the plane of the key slot (3a) and which function to press the side bar to its locking position as the key is withdrawn from its operative position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.