Annular seal assembly, in particular for the drive shaft of a vehicle
US6273428A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1999 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Aug 13, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3256
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A seal assembly which includes first and second annular screens, mounted facing each other coaxially; the first screen carries a seal member made of an elastomeric material which includes a main annular sealing lip, which extends axially from a root portion secured on a flange portion of the first screen, towards a flange portion of the second screen facing the flange portion of the first screen; the lip includes an enlarged portion radially offset with respect to the root portion and delimited by a circumferential rim and an annular sealing projection with a V-shaped section and its sealing edge oriented axially, the circumferential rim having a radial annular seat for a resilient circumferential retaining member, able to exert a predetermined radial stress on the lip, and the V-shaped projection being arranged alongside the seat for the resilient member, with the sealing edge towards the flange portion of the second screen, with which it cooperates slidably in an axial direction; the enlarged portion of the lip is connected to the root portion by an annular portion shaped to form a resilient hinge, the center of rotation of which is arranged on a line through the said sealing edg…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.