Pressure release valve
US6189856A · kind A · utility
1Cited by
16References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 10, 1999 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Mar 10, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K47/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure release valve for a steam peeler for potatoes has a differential piston assembly including a piston which is movable between an open position and a closed position under steam control, and a fixed piston element which is received in a secondary cylinder within the main piston for defining a chamber that progressively reduces in volume as the main piston moves towards its open position. The chamber receives a cushioning fluid for decelerating the piston as it moves towards the open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.