B30B 9/248
Means for sealing the press zone
Official title: {Means for sealing the press zone}
B30B9/248 (Means for sealing the press zone) appears on 18 US grants and 0 published applications in this corpus.
Search patents in B30B- Granted patents
- 18
- Published applications
- 0
- Assignees
- 10
- Inventors
- 28
- Latest grant
- 24 Apr 2001
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and device for concentrating liquid-drenched material24 Apr 2001US 6,221,265 B1Valmet Fibertech AB
- Method, filter press and control device for reducing the water content of solid materials and/or sludges30 Mar 1999US 5,887,514 AMaschinenfabrik J. Dieffenbacher GmbH & Co.
- Method and system for dewatering carboniferous materials using a vaportight pressure chamber26 Jan 1999US 5,862,612 AMaschinenfabrik J. Dieffenbacher GmbH & Co.
- Production of fiber composite27 Oct 1998US 5,827,460 ABASF SE
- Method for preparing a material for high pressure deliquification13 Aug 1996US 5,545,333 AKomline-Sanderson Engineering Corporation
No published applications in this class yet.
Most cited
By later US patents
- Belt filter press and belt for same15US 5,022,989 AStrategic American Markets, Inc. · 1991
- Production of fiber composite14US 5,827,460 ABASF SE · 1998
- Chamber type filter press for de-watering sludges and similar substances13US 4,266,474 A1981
- Dehydration machine for pulp, sludges or similar fibrous materials13US 4,544,447 AMaschinenfabrik Andritz Actiengesellschaft · 1985
- Apparatus for preparing a material for high pressure deliquification11US 5,456,832 AKomline-Sanderson Engineering Corporation · 1995