Laminated finger seal with logarithmic curvature
US5108116A · kind A · utility
67Cited by
28References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1991 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | May 31, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3288
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An annular sealing apparatus comprised of at least a pair of axially stacked thin diaphragm members is provided. Each of diaphragm members includes a planar array of radially extending fingers separated by gaps. The fingers have a logarithmic curvature as they extend from their innermost end to their outermost end. The fingers also have a constant thickness along their length and also have a foot integral with their innermost end. This foot is wider than the fingers and thereby provides a larger wear surface. The pair of diaphragm members are disposed so that the fingers of each block the gaps of the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.