Dust-proof boot and method for mounting the same
US5261678A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1992 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Mar 30, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D55/22655
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A dust-proof boot comprising an internal engaging ring extended from one end of an expansible bellows portion and an external engaging ring provided upwardly thereof and capable of being spread is provided at an extended base of the internal engaging ring with an air flow port for guiding pressure from the inside of the bellows portion into the internal engaging ring. In mounting the dust-proof boot on a support provided with a guide hole, the internal engaging ring of the dust-proof boot is fitted into an internal groove of the support, after which compressed air is supplied from the interior of the bellows whereby the compressed air spreads the external engaging ring via the air flow port and the external engaging ring is fitted into an external groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.