Universal split mechanical seal
US5571268A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1993 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Dec 16, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3488
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A split mechanical seal including first and second seal ring assemblies, at least one resilient biasing element and at least one axial biasing element. The first and second seal ring assemblies each include a seal ring having two segments that are resiliently supported in the seal. The segments have an outer surface and a pair of segment sealing faces disposed at opposite ends of the segments. The mechanical seal includes a pair of resilient biasing elements disposed about each seal ring, and the resilient biasing element is preferably an elastomeric member. The axial biasing element is associated with at least one seal ring for generating and applying, in cooperation with the elastomeric member, a second radially inward force; the second force operating to bias the segment sealing faces together when the mechanical seal is exposed to a selected pressure condition. The axial biasing element is an abutment, integrally formed with the segments of both seal rings, that has a radially outwardly slanted outer surface. When the mechanical seal is exposed to a selected pressure condition, the elastomeric member is disposed in intimate contact with the abutment, and applies an axial force …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.