Manhole cover venting and precipitation guarding devices
US8851791B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Sep 11, 2013 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Sep 11, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D29/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A manhole cover venting and rain guarding device for a manhole cover having an exterior manhole cover surface and an interior manhole cover surface includes a device housing adapted for attachment to the manhole cover. The device housing includes manhole cover venting and precipitation guarding device includes a device housing adapted for attachment to the manhole cover, the device housing including a head portion having a head portion surface adapted to protrude beyond an entire plane of the exterior manhole cover surface and a device bore extending through the head portion and adapted to communicate with the interior manhole cover surface of the manhole cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.