Safety device for apparatus having relatively movable members
US4695820A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1986 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Mar 13, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H3/0213
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In electrical control apparatus having a first member disposed in an opening in a second member, the first and second members being adapted and arranged for relative movement with respect to each other, a safety device for covering the open portions of the opening as the first member moves relative to the opening. A primary shield is located adjacent to and overlaps the opening. The primary shield is operatively associated with the first member for movement in response to relative movement of the first member. The primary shield has a shape adapted to permit unrestrained movement of the first member while overlapping the open portions of the opening to cover those portions for all positions of the first member in the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.