EP 0404475 A3 19930303 - PROCESS AND APPARATUS FOR THE TREATMENT OF MATERIAL SUCH AS TOBACCO
Title (en)
PROCESS AND APPARATUS FOR THE TREATMENT OF MATERIAL SUCH AS TOBACCO
Publication
Application
Priority
- US 36758989 A 19890619
- US 51984190 A 19900510
Abstract (en)
[origin: EP0404475A2] Process and apparatus for the treatment of tobacco material and other biological materials includes a mechanism comprising a dynamic seal having components (120,122) having cooperating movable surfaces for sealing a treatment chamber (50) that substantially prevents the passage of fluid at the treatment chamber pressure during movement of the components for introducing material into and removing material from the chamber. The seal components preferably comprise advanced structural ceramic components having a hardness of at least 900 kg/mm<2> and a flatness of at least 70 microinches (1.8 micrometres). The process is preferably conducted at supercritical gaseous conditions.
IPC 1-7
IPC 8 full level
A24B 15/18 (2006.01); A24B 3/18 (2006.01)
CPC (source: EP)
A24B 3/18 (2013.01)
Citation (search report)
- [X] EP 0121058 A2 19841010 - REYNOLDS TOBACCO CO R [US]
- [XP] EP 0328676 A1 19890823 - JAPAN TOBACCO INC [JP]
- [XD] GB 2193076 A 19880203 - AMERICAN TOBACCO CO
- [X] WO 8707478 A1 19871217 - GBE INTERNATIONAL PLC [GB]
- [E] WO 9006695 A1 19900628 - EGRI LASZLO [CH]
- [X] DE 3722913 A1 19890126 - WAESCHLE MASCHF GMBH [DE]
- [X] US 4047901 A 19770913 - BARON GERHARD, et al
- [A] CH 658108 A5 19861015 - KARRER WEBER & CIE AG
- [A] DE 3335860 A1 19850418 - KLOECKNER HUMBOLDT DEUTZ AG [DE]
- [AD] US 4153063 A 19790508 - ROSELIUS WILHELM, et al
- [A] US 4180188 A 19791225 - AKAO TAKESHI [JP], et al
- [A] US 4033467 A 19770705 - BEWLEY WILLIAM L, et al
- [X] ADVANCED CERAMIC MATERIALS vol. 2, no. 1, 1987, page 9 'Ceramic Composite Outperforms Steel in High-Pressure Valves'
- [X] CHEM.-ING.-TECH. vol. 53, no. 5, 1981, pages 335 - 344 REIMERT R. 'Schleusen für Druckreaktoren - Konzepte und Ausf}hrungen'
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0404475 A2 19901227; EP 0404475 A3 19930303; JP H0394665 A 19910419
DOCDB simple family (application)
EP 90306604 A 19900618; JP 15293190 A 19900613