Electrical shock-proof fuse holder
US4826454A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1988 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Mar 14, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H85/62
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Two axially spaced contact pieces extend radially inwardly through an opening into a receiving tube provided in a housing and contact end caps of a fuse insert or fuselink, when the latter is in a locked position within the receiving tube. To release the fuse insert, a cradle-like carrier is rotated through an angle of approximately 180.degree., so that the fuse insert together with the end caps thereof are spaced and insulated from the contact pieces by the cradle of the cradle-like carrier. The cradle-like carrier including the fuse insert can now be pulled out of the housing to such an extent that barb-like elements of the cradle-like carrier abut against a stop provided at the housing. The cradle-like carrier retains the receiving tube closed by means of a closure portion of the cradle-like carrier. There is thus ensured absolute electrical shock-proof safety, in other words, there is afforded complete safety against electrical shocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.