Key cylinder lock arrangements
US8424349B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2009 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Sep 27, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/774
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A recodeable lock includes a housing, a cylinder plug, a plurality of wafer tumblers, and a sidebar coupled with the cylinder plug. The sidebar is assembled with a plurality of code blocks and a codebar releasably securing the code blocks to the sidebar. A liftbar is disposed in the housing radially outward of the cylinder plug and is configured to selectively engage a radially outward extending appendage of the codebar when the cylinder plug and sidebar are rotated to a recoding orientation, to release the code blocks from the sidebar. The housing includes a circumferential track axially positioned to receive the appendage of the codebar to permit greater than 180 degree rotation of the cylinder plug and sidebar with respect to the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.