Dashpot assembly
US4071119A · kind A · utility
2Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1976 |
| Grant date | Jan 31, 1978 |
| Priority date | — |
| Expiry date | Aug 9, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A dashpot assembly having a single annular diaphragm the inner periphery of which forms a valve movable relative to a metering passage between chambers formed at opposite sides of a plunger assembly in the dashpot. Upon movement in one direction the valve element requires air to pass through the metering passage and upon movement in the opposite direction the valve moves out of engagement to permit free flow between opposite sides of the plunger. The dashpot incorporates a ring element which serves to maintain the metering passage free of obstructions and dirt and which extends the effective area of the diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.