Preventing disturbances of underground conduit
US9909708B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2016 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Nov 30, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L1/11
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A protective mat for covering buried conduit in the form of a rectangular structure comprising upper and lower sections wherein the upper section includes elongated members, a sheet structure that includes a plurality of downward facing open cells, or an open grid or grating and wherein the lower section includes elongated members, a sheet structure that includes a plurality of upward facing cells, or an open grid or grating; a forward end that includes one or more protruding elements; and a rearward end that includes one or more recesses that are configured and dimension for receiving the protruding element(s) of a similarly configured adjacent mat. Thus, the protruding element(s) and recess(es) are associated with and located on the lower section of the mat such that the protruding element(s) of one mat can be inserted in the recess(es) of and adjacent mat to interlock the mats together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.