Storm grate locking device
US8585316B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 21, 2011 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Oct 21, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/426
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A locking device for a storm grate to prevent theft or vandalism by unauthorized individuals. The device typically includes an upper plate, a positioning frame, at least one coupler nut, and a bolt. The positioning frame can include the coupler nut, a catch end for engaging the frame of the grate, a lower plate for engaging the underside of the grate, and a pliers handle for holding the device during insertion through a drain opening. In one embodiment, a second coupler nut is part of a wing wedge that secures a lower plate of the positioning frame to the underside of the grate. A method of inserting the device includes lowering the device through an opening in the grate, securing the catch end around the frame beneath the ground, and then tightening the bolt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.