Hydraulic tank reservoir pressure and vacuum stabilizer system
US3935882A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1974 |
| Grant date | Feb 3, 1976 |
| Priority date | — |
| Expiry date | Feb 19, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2201/415
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An hydraulic system comprising a displacement-type hydraulic element in communication with a sealed reservoir tank for receiving hydraulic fluid from and returning hydraulic fluid to the reservoir, and a stabilizer for preventing excessive vacuum and pressure from forming within the reservoir as fluid is moved into and out of the same. The stabilizer is carried within the reservoir tank and has a bellows construction for compensating for change of volume in the reservoir as fluid changes take place therein, and the stabilizer is vented to the atmosphere through a breather system constructed to minimize entrance of dirt and the like within the stabilizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.