Well cap snorkel vent
US5823259A · kind A · utility
8Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1996 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Dec 9, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/3099
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A dual float snorkel vent for use in sealing a well conduit vent cap from flood waters that could contaminate well water therebelow. A lower float causes an upper float to seal a check valve as water rises and prior to water reaching the level of the upper float and the snorkel vent is positioned at an appreciable vertical distance below an inlet to the vent cap to ensure that no water enters the vent conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.