Sealed type hydraulic reservoir
US4192345A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 10, 1977 |
| Grant date | Mar 11, 1980 |
| Priority date | — |
| Expiry date | Nov 10, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86196
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A sealed type hydraulic reservoir including a casing for storing brake fluid therein, a cap member detachably mounted on the casing and an elastic diaphragm member dividing the casing into upper and lower chambers. The lower chamber is defined by the diaphragm member and the liquid surface, and the pressure in the lower chamber is always maintained at the level of atmospheric pressure by two check valves, one for allowing the air flow from the upper to the lower chamber when the pressure in the lower chamber drops below the atmospheric level and the other for allowing the air flow from the lower to upper chamber when the pressure in the lower chamber rises above the atmospheric level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.