Sealing apparatus and universal joint using the same
US6443461B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Apr 27, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2003/846
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sealing apparatus 20 is provided with an annular elastic member 21 and a reinforcing member 23 to which the elastic member 21 is securely fixed, and is attached to an annular stepped portion 12b of a cylindrical member 12. The elastic member 21 has a sealing portion coming into contact with the inner surface of the stepped portion 12b of the cylindrical member 12 and the inner periphery surface of a large cylinder portion 12c in an airtight manner. Further, the sealing apparatus 20 has a holding portion including a cylinder portion 24 press-inserted into the inner periphery of the small cylinder portion 12a of the cylindrical member 12; and an elastic outer cylinder portion 25.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.