Security operating device
US5741033A · kind A · utility
7Cited by
24References
15Claims
0Family size
Inventor
Key dates
| Filing date | Aug 29, 1996 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Aug 29, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/37
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A security operating device which mechanically connects a standard door knob to an added security device which may be used to prevent intrusion against that door. The security operating device converts the rotational motion of the door knob to lifting, pulling, or pushing motions which engage or disengage the additional security device. The internal lock in the door knob lock set is thereby also used to lock the added security device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.