Tank car manway cover assembly
US6076471A · kind A · utility
Inventors
Key dates
| Filing date | Sep 28, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Sep 28, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K17/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A manway cover assembly to cover an opening of a tank car, defined by an upstanding manway nozzle. The manway cover assembly comprises a manway cover housing, a safety vent and a manway nozzle gasket. The safety vent includes a body mounted on the manway cover housing. The safety vent further includes a surge protector and a rupture disk. The rupture disk is designed to open at a known pressure and allow controlled venting of the pressure in the car. The manway cover housing defines a bore which contains the surge protector of the safety vent. The manway cover housing includes a tube extending downwardly and surrounding the surge protector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.