Cremone-bolt door-locking device
US8459702B2 · kind B2 · utility
2Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2009 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Apr 11, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/0966
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Cremone-bolt door-locking controlled by rack-and-pinion means. The cremone-bolt rod is connected to a first rack support that is slidably mounted inside a housing that houses a second slidably mounted rack support, each rack support carrying a rack segment in engagement with a pinion, at least one rack segment being hinged to its own rack support and being provided with a set of teeth that is extended over a curved portion of its end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.