Durable protective cover for preventing spilled liquids from flowing into drains or holes
US8117686B2 · kind B2 · utility
9Cited by
20References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Aug 29, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2581/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Durable protective covers for drains and other holes are provided which prevent spills and unwanted liquids from flowing therein. The protective covers include a durable backing layer and a pliable, tacky sealing layer which conforms and adheres to a surface surrounding the drain to reduce or eliminate the flow of liquids into the drain. A low-density bonding layer is provided between the pliable, tacky sealing layer and the durable backing layer in order to provide significantly improved adherence between the layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.