Apparatus for maintaining a fluid seal with a moving substrate
US6318727A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Nov 5, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/906
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus is disclosed for maintaining a fluid seal with a moving substrate. The apparatus includes an enclosure and a cap. The enclosure has a first surface and a second surface with the first surface being in sealing contact with the moving substrate. The cap seals off the second surface of the enclosure. The cap is secured to the enclosure at at least two spaced apart locations and has a non-secured portion that is capable of deflecting independently of the enclosure. The apparatus further includes means for introducing a pressurized fluid into the enclosure. The pressurized fluid creates a net force on the enclosure of zero and a force on the cap which causes a portion of the cap to deflect. The deflection of the cap allows the first surface of the enclosure to remain in sealing contact with the moving substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.