Gravity ball valve and operating mechanism
US6138297A · kind A · utility
12Cited by
9References
1Claims
0Family size
Inventors
Key dates
| Filing date | Jun 21, 1999 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Jun 21, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03C1/23
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A removable pop-up ball valve 34 situated beneath the strainer area 22 of a sink 12 above the wastewater discharge pipe 32. The pop-up valve 34 has a remote control rod 30 whereby the valve 34 is opened and closed. The pop-up valve ball valve 34 which is actuated by a stem 54 which moves from an engaging to a non-engaging position by way of a pivot rod 46 pivotally operated and connected to a pivot ball 48 connected through a clevis 40, 44 in the standard manner to the remotely positioned control handle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.