Handles for bottom outlet valve assembly
US6213449A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1999 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Jun 7, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/202
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A bottom outlet valve for a tank car having a bottom is provided. The valve includes a nozzle projecting from the bottom of the tank car and defining an opening and having a locking member, an outlet cap shaped and dimensioned to cover the opening and moveable between open and closed positions, wherein in the closed position the cap forms a substantially liquid-tight seal with the opening. The valve also includes at least one moveable handle coupled to the cap and having a locking portion engageable with the locking member and a hand gripping portion formed by structure defining a closed loop. Movement of the hand gripping portion causes engagement of the locking portion with the locking member, wherein when the locking member and locking portion are engaged, the outlet cap is retained in a closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.