Devices for cross bore safeguard during sewer system cleanouts
US10189059B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 17, 2015 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Mar 5, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F9/005
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Devices and methods for sewer system cleanouts such as provide increased cross bore safeguard during sewer system cleanouts. A sewer system cleanout safety device includes a housing for placement at a sewer cleanout opening to prevent passage of gas out through the sewer cleanout opening during the sewer system cleanout. The housing includes opposed inner and outer cleanout opening surfaces, and a peripheral surface extending between said inner and outer cleanout opening surfaces. The housing includes a cavity extending between the inner and outer cleanout opening surfaces to permit passage of a sewer system cleanout implement therethrough. The housing further includes a cavity lining surface to seal with the sewer system cleanout implement passing therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.