Apparatus for producing a reaction mixture
US4474310A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 21, 1982 |
| Grant date | Oct 2, 1984 |
| Priority date | — |
| Expiry date | Apr 21, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/83
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention is directed to an apparatus for producing a reaction mixture from at least two fluid components comprising: (A) a storage container for each component; (B) feed pipes leading from each storage container via metering pumps to injection nozzles; (C) return pipes leading from each injection nozzle to the storage containers; (D) the injection nozzles opening into the mixing chamber of a mixhead, the mixhead having an outlet opening downstream of the injection nozzles, each injection nozzle comprising (i) a housing, (ii) a bore arranged in the housing, the bore connected to a feed pipe and a return pipe, (iii) a nozzle needle within the bore, the nozzle needle being provided with (a) an annular groove for connecting the feed pipe and the return pipe, (b) a sealing surface, and (c) a needle spindle, (iv) a sealing surface in the housing, the sealing surface adapted to contact the sealing surface of the nozzle needle, and (v) a central nozzle bore located in the sealing surface (vi) wherein the needle spindle is adapted to pass into and/or through the central nozzle bore; characterized in the (E) the nozzle needle and the needle spindle are separate parts, wherein th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.