Security device for the lock on a switchgear-cabinet door, machine housing, etc.
US6053018A · kind A · utility
Inventor
Key dates
| Filing date | Nov 7, 1997 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Nov 7, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/5832
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Described is a security device for the lock on a switchgear-cabinet door, a machine housing or similar equipment, the device consisting of a first element (54) attached e.g. to the door (12) and a second element (44) attached e.g. to the door frame or machine-housing frame (24), the two elements (54, 44) being designed so that one can be inserted in the other and be held in this position under the control of an electrical signal, corresponding, for example, to the presence or absence of an operating signal. The invention calls, in the case of a door or machine-housing panel (12), for e.g. one element (54) to be attached to the handle (26) of a turning-handle lock (14) mounted on the door or housing panel and for the other element (44) to be attached in such a way to the door frame or housing frame (24) that this other element (44) projects out into the vicinity of the lock handle when the door is closed or the housing in place and the lock handle turned into the "locked" position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.