Electrical arc flash protection blanket
US7288714B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2006 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Oct 12, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62C8/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An electrical arc flash protection blanket for protecting workers from electrical arc flashes. The blanket is composed of two or more layers where the layer closest to the electrical arc source is of a fiberglass material and the remainder of the layers are of fiberglass and/or a flame-retardant (FR) materials. The layers overlap so that the they can be attached around the entire perimeter. Preferred fiberglass fabrics are woven with a warp yarn break strength between about 0.7 and 1.5 times the fill yarn break strength. FR materials include FR cotton, para-aramids, and meta-aramids. A fastening structure is used to install the blanket for use. Contemplated fastening structures include straps with temporary fasteners around the blanket perimeter and eyelets. Optional integral handles facilitate carrying and installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.