GB1231964A - - Google Patents

Info

Publication number
GB1231964A
GB1231964A GB4870369A GB1231964DA GB1231964A GB 1231964 A GB1231964 A GB 1231964A GB 4870369 A GB4870369 A GB 4870369A GB 1231964D A GB1231964D A GB 1231964DA GB 1231964 A GB1231964 A GB 1231964A
Authority
GB
United Kingdom
Prior art keywords
components
jets
passages
controlled
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4870369A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AT1021365A external-priority patent/AT279145B/en
Application filed filed Critical
Publication of GB1231964A publication Critical patent/GB1231964A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/76—Mixers with stream-impingement mixing head

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

1,231,964. Mixing in conduits. SEMPERIT A.G. 3 Oct., 1969, No. 48703/69. Heading B1C. A mixer head for a synthetic resin, (e.g. polyurethane) foam prepared from two or more components comprises a supply passage 4 for each component opening directly into a discharge passage the diameter of which increases -from the junction towards its outlet 8 over partnat least of its length and is constant for any remaining part; the components are injected with their respective supply passages by jets 2, mix turbulently and are discharged in laminar flow. There are passages 3, 6 for compressed air and flushing medium controlled by a common valve 7. The resin components may be supplied by gear, rotary or piston pumps the capacity of which is matched so that they may be controlled by a time relay; the opening pressure of the jets is adjustable to ensure simultaneous opening, and they close automatically.
GB4870369A 1965-11-12 1969-10-03 Expired GB1231964A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1021365A AT279145B (en) 1965-11-12 1965-11-12 Mixing head for the production of synthetic resin foam from a two- or multi-component resin
GB4870369 1969-10-03

Publications (1)

Publication Number Publication Date
GB1231964A true GB1231964A (en) 1971-05-12

Family

ID=25605938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4870369A Expired GB1231964A (en) 1965-11-12 1969-10-03

Country Status (2)

Country Link
DE (1) DE1629650A1 (en)
GB (1) GB1231964A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2802890C2 (en) * 1978-01-24 1983-05-26 Rolf 7770 Überlingen Bommer Mixing head for foaming a two-component plastic
DE3563595D1 (en) * 1985-04-01 1988-08-11 Krauss Maffei Ag Method and apparatus for producing foam
IT1271538B (en) * 1993-10-15 1997-05-30 Sviluppo Settori Impiego Srl DEVICE FOR THE MOLDING OF ITEMS OF COMPOSITE MATERIAL AND PROCEDURE USING SUCH DEVICE

Also Published As

Publication number Publication date
DE1629650A1 (en) 1971-02-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees