EP 0087682 A1 19830907 - Metering and/or feeding unit for fluid materials.
Title (en)
Metering and/or feeding unit for fluid materials.
Title (de)
Mess- und/oder Abgabeeinheit für fliessbares Material.
Title (fr)
Unité de mesure et/ou de distribution pour matériaux fluidisés.
Publication
Application
Priority
- US 35212682 A 19820225
- US 41400682 A 19820902
Abstract (en)
A metering and/or feeding unit for fluid materials, particularly dry particulate materials and semifluid materials, is disclosed. An elastic-walled tube (17) having an open feed end and an open discharge end is vertically oriented. A power-driven assembly, including tube rollers (28), are adapted to constrict the elastic tube (17), beginning at its upper end and progressively moving down the length of the tube. The material being metered or fed is introduced into the elastic tube at its upper end and is progressively moved down the length of the tube as the tube roller (28) of the power-driven assembly moves down the length of the tube. Valve means (39) are provided to prevent entry of material into the feed end of the tube (17) at periodic intervals and in coordination with constriction of the tube (17) so that when a tube roller (28) initially engages the tube (17) near the feed end of the tube, that portion of the tube (17) is substantially free of material. The material being fed may be discharged into a plenum (47) through which a stream of pressurized gas is discharged to convey the material to a work location.
IPC 1-7
IPC 8 full level
F04B 43/12 (2006.01)
CPC (source: EP)
F04B 43/1223 (2013.01)
Citation (search report)
- [A] CH 589553 A5 19770715 - SPRIBAG AG
- [A] FR 2336571 A1 19770722 - MILES LAB [US]
- [A] FR 2199812 A5 19740412 - VON CASIMIR WOLF [DE]
- [A] US 3862780 A 19750128 - SENN GEORG
- [A] FR 2325827 A1 19770422 - BAXTER TRAVENOL LAB [US]
- [A] FR 2144234 A5 19730209 - RUGEL ET LUTZ MASCHINENF
- [A] US 3340817 A 19670912 - KEMNITZ GUSTAVE W
- [A] US 2029514 A 19360204 - ROBERT THOMSON
- [A] NL 7211427 A 19740225
Designated contracting state (EPC)
CH DE FR GB IT LI SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 83101483 A 19830216; AU 1139583 A 19830214