T-fitting with one way valve and water level sensor for a sump apparatus
US4631001A · kind A · utility
17Cited by
9References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1985 |
| Grant date | Dec 23, 1986 |
| Priority date | — |
| Expiry date | Aug 9, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7856
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A sump pump assembly having a primary sump pump and a secondary sump pump and including a T-fitting for connecting together the outlets of the primary sump pump and the secondary sump pump to a common exhaust. The T-fitting contains a one-way valve on the secondary pump outlet connection and a fastening means for a water level sensing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.