Adjustable tamper-resistant locking mechanism for manhole cover
US12297673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2023 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | May 15, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B65/006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This disclosure includes a manhole cover locking device, system, and kit, each configured for locking a manhole cover in a closed position overtop an access opening of a container, the access opening being arranged at one end of a collar extending outwardly from the container, each comprising: a body; a mechanism for connecting the body to a pre-existing portion of the manhole collar or the container; and, a mechanism for securing the body to the manhole cover to prevent the opening of the manhole cover using a pre-existing portion of the manhole cover. Each mechanism may be tamper resistant. The disclosure also includes methods of installing and using the device, system, and kit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.