D21F 3/0263
Sealing arrangements therefor
Official title: {Sealing arrangements therefor}
D21F3/0263 (Sealing arrangements therefor) appears on 15 US grants and 7 published applications in this corpus.
Search patents in D21F- Granted patents
- 15
- Published applications
- 7
- Assignees
- 5
- Inventors
- 12
- Latest grant
- 5 Apr 2005
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 0 |
| 2003 | 3 | 5 |
| 2004 | 3 | 2 |
| 2005 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Roll configuration for an air press of a papermaking machine5 Apr 2005US 6,875,310 B2Voith Paper Patent GmbH
- Device for dewatering a fibrous material web23 Mar 2004US 6,708,423 B2Voith Paper Patent GmbH
- Main roll for an air press of a papermaking machine9 Mar 2004US 6,702,924 B2Voith Paper Patent GmbH
- Sealing arrangement17 Feb 2004US 6,692,008 B2Voith Paper Patent GmbH
- Method of forming a semipermeable membrane with intercommunicating pores for a pressing apparatus11 Nov 2003US 6,645,420 B1Voith Sulzer Papiertechnik Patent GmbH
- Roll configuration for an air press of a papermaking machine30 Sep 2004US 2004/0188049 A1Voith Paper Patent GmbH
- Semipermeable membrane with intercommunicating pores for pressing apparatus13 May 2004US 2004/0089168 A1Voith Sulzer Papiertechnik Patent GmbH
- Sealing arrangement7 Aug 2003US 2003/0146581 A1Voith Paper Patent GmbH
- Device for dewatering a fibrous material web5 Jun 2003US 2003/0101614 A1Voith Paper Patent GmbH
- Cross-directional interlocking of rolls in an air press of a papermaking machine27 Mar 2003US 2003/0056921 A1Voith Paper Patent GmbH
Most cited
By later US patents
- Pressing apparatus having semipermeable membrane41US 6,416,631 B1Voith Sulzer Papiertechnik Patent GmbH · 2002
- Semipermeable membrane for pressing apparatus38US 6,274,042 B1Voith Sulzer Papiertechnik GmbH · 2001
- Pressing apparatus having chamber end sealing33US 6,161,303 AVoith Sulzer Papiertechnik Patent GmbH · 2000
- Paper making apparatus having pressurized chamber33US 6,419,793 B1Voith Sulzer Papiertechnik Patent GmbH · 2002
- Method of forming a semipermeable membrane with intercommunicating pores for a pressing apparatus32US 6,645,420 B1Voith Sulzer Papiertechnik Patent GmbH · 2003