Hydraulic elevator muffler
US5101930A · kind A · utility
19Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1990 |
| Grant date | Apr 7, 1992 |
| Priority date | — |
| Expiry date | Aug 28, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/0332
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A muffler for attenuating pulsations within the hydraulic fluid of an hydraulic elevator includes a plurality of compressible elements for absorbing pressure pulsations within the fluid and a baffle for ensuring that the flow of fluid contacts the elements sufficiently to absorb such pulsations, the baffle allowing a certain amount of flow to pass therethrough so that the pressure drop around the baffle is not so extreme so as to cause the muffler to cease to function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.