Semi-unitized shaft seal
US4252329A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1979 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Feb 26, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3264
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A two-part separable, semi-unitized shaft seal for sealing between a housing bore and a relatively rotatable shaft extending through the bore and comprising a metal wear sleeve member and a sealing member assembled onto the wear sleeve member for shipping and installation of the seal as a unitized seal. However, when the housing and shaft are disassembled, the wear sleeve remains on the shaft and the sealing member remains with the housing, whereby each part can be examined and replaced, if necessary, without discarding the entire seal. The wear sleeve press-fits onto the shaft and the sealing member forms an elastomeric interference fit in the housing bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.