Timber access mat with grounding
US9458578B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 9, 2015 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Nov 9, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2201/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A timber access mat having an electrical grounding feature includes an electrically conductive cover layer that is removably carried over the top of the body of the timber access mat. The electrically conductive cover layer can be formed from one or more sheets of expanded metal such as expanded steel. The layer is joined to a perimeter frame that includes offset connector tabs that allow mats to be positioned side-by-side. The connector tabs are paired with cable guides to protect the cable leads that connect the mats. The perimeter frame and conductive cover layer can be added to traditional timber access mats when electrical grounding is required and then removed and stored when not required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.