Seal for a joint or juncture – Seal between relatively movable parts – Circumferential contact seal for other than piston
Reexamination Certificate
2006-12-12
2006-12-12
Engle, Patricia L. (Department: 3673)
Seal for a joint or juncture
Seal between relatively movable parts
Circumferential contact seal for other than piston
C277S581000, C277S903000
Reexamination Certificate
active
07147230
ABSTRACT:
The sealing device is for drum filters or filter presses to form a seal between the rotary drum end faces and the end faces of the trough in which the rotary drums are situated. A sealing element (3) is disposed in a groove (1) on the rotary drum end face, in which the sealing element (3) is pressed into contact against the opposite part by a hose element (2), preferably in form of two flexible hoses (2a, 2b), which can be pressurized internally. The hoses (2a, 2b) are disposed one on top of the other in the groove (1) beneath the sealing element (3). The two open ends of the hose element (2) are provided with sleeves (7) which enclose the ends. The sleeves (7) are held in place in the groove (1) with a holder element (10). Spaces (19a, 19b) are formed on both sides of the middle piece (12) of the holder element. One space (19a) is provided with an inlet (17) for pressurizing medium and the other space (19b) is provided with an outlet (18) for the pressurizing medium. The sealing device also has a sleeve (7) and a holder element (10).
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Engle Patricia L.
Fasth Rolf
Fasth Law Offices
Kvaerner Pulping AB
Lee Gilbert
LandOfFree
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