EP 0349551 B1 19930616 - APPARATUS AND METHOD FOR PRODUCING FOAMED MATERIALS
Title (en)
APPARATUS AND METHOD FOR PRODUCING FOAMED MATERIALS
Publication
Application
Priority
GB 8705903 A 19870312
Abstract (en)
[origin: WO8806958A1] An apparatus and method for controlling the production of foamed material in which the material and foam are delivered to a mixer (12) in predetermined relative proportions. The apparatus comprises a mixer (23) for mixing a foam solution and air together, and a foam generator (26) for conditioning the air and foam solution mixture and delivering the resultant foam to the mixer. The foam generator (26) comprises a plurality of foam generating chambers connected in parallel, valves (28) being provided to control the flow of air and foam solution mixture through each of the generator chambers. The volume flow rate at which foam is delivered to the mixer (12) is monitored, and the valves are controlled to direct the air and foam solution mixture through one or more of the generator chambers in dependence upon the volume flow rate such that the flow velocity of the air and foam solution mixture within the chamber or chambers is within predetermined limits.
IPC 1-7
IPC 8 full level
B01F 15/04 (2006.01); B28C 5/38 (2006.01); B28C 7/04 (2006.01); C04B 38/10 (2006.01)
CPC (source: EP)
B01F 35/833 (2022.01); B28C 5/386 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU SE
DOCDB simple family (publication)
WO 8806958 A1 19880922; AT E90614 T1 19930715; AU 1428388 A 19881010; DE 3881878 D1 19930722; DE 3881878 T2 19940127; EP 0349551 A1 19900110; EP 0349551 B1 19930616; GB 8705903 D0 19870415; JP 2831365 B2 19981202; JP H02502447 A 19900809
DOCDB simple family (application)
GB 8800175 W 19880309; AT 88902171 T 19880309; AU 1428388 A 19880309; DE 3881878 T 19880309; EP 88902171 A 19880309; GB 8705903 A 19870312; JP 50223088 A 19880309