초록 ▼

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

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.

대표청구항 ▼

[ I claim:] [1.]1. An apparatus for maintaining a fluid seal with a moving substrate, said apparatus comprising:a) an enclosure having a first surface and a second surface, said first surface being in sealing contact with said moving substrate;b) a cap sealing off said second surface of said enclosu

[ I claim:] [1.]1. An apparatus for maintaining a fluid seal with a moving substrate, said apparatus comprising:a) an enclosure having a first surface and a second surface, said first surface being in sealing contact with said moving substrate;b) a cap sealing off said second surface of said enclosure, said cap being secured to said enclosure at at least two spaced apart locations and said cap having a non-secured portion which is capable of deflecting independently of said enclosure; andc) means for introducing a pressurized fluid into said enclosure, said pressurized fluid creating a net force on said enclosure of zero and a force on said cap which causes a portion of said cap to deflect thus allowing said first surface of said enclosure to remain in sealing contact with said moving substrate.