Biological safety cabinet with window counterbalance
US5050943A · kind A · utility
17Cited by
8References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1990 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Apr 24, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/148
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A biological safety cabinet vertical lift assist system employing one or more pneumatic springs operatively connected to the cabinet and sliding window to counterbalance the window's weight to provide a substantially constant brake force spring resulting in smoother and easier operation of the window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.