Tank drain assembly for swimming pool filters
US4169793A · kind A · utility
30Cited by
9References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1977 |
| Grant date | Oct 2, 1979 |
| Priority date | — |
| Expiry date | Jul 11, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/4084
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A tank drain assembly for swimming pool filters is provided characterized by an improved locking and orienting structure individually locking collector tubes into their respective sockets in the manifold surrounding the common drain port of the filter tank, each such structure comprising spring finger means segmentally formed on the socket end of the tubes, and a finger receiving recess within the tube socket sized and located to operatively orient the tube apertures responsive to receiving the finger means in tube locking relation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.