Patent US3698430A successfully refreshed from Google Patents.
US3698430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing device for mixing two media with greatly different temperatures
Assignee: Neratoom BV
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Filing: 1969-07-22
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Granted: 1972-10-17
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Expires: 1989-07-22
Abstract
Abstract A mixing device for mixing two media of greatly different temperatures, especially for mixing liquid metals such as sodium, comprising a cylindrical mixing chamber having an axial inlet conduit and an inlet conduit connected transversely to the wall of the mixing chamber for the media to be mixed, and also an axial outlet conduit, wherein a perforated cylinder is positioned concentrically inside the mixing chamber, this cylinder forming the wall of the mixing part proper, and also wherein the axial inlet conduit is conically contracted, at the place where it is connected to the mixing chamber, to a diameter which is smaller than the diameter of the perforated cylinder and the diameter of the perforated cylinder is at least equal to the diameter of the axial inlet conduit before its contraction, and wherein furthermore there are annular spaces around the axial inlet and outlet conduits where they are connected with the mixing chamber, which communicate via relatively small ports with the inlet conduit and outlet conduit at one side and with the mixing chamber at the other side.
Inventors
- 👤 Max L G Van Gasselt
- 👤 Pieter A Van Rijs
- 👤 Willem J Basting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:17
CPC Classifications
G; G21; G21C; G21C1/00; G21C1/02; B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/314; B01F25/3142; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
168 words
A mixing device for mixing two fluid media with greatly different temperatures comprising a mixing chamber with inlet conduits for the two media to be mixed and an outlet conduit, said mixing chamber consisting of a substantially cylindrical housing with inlet conduits connected to one of the axial ends of this housing and transversely to the wall of this housing respectively, the outlet conduit being at the other axial end and a circumferentially perforated cylinder being positioned concentrically at some distance inside this housing in open communication with the two inlet conduits and the outlet conduit and means freely and movably supporting said perforated cylinder in said housing, the said axial inlet conduit at the location of the junction with the mixing chamber having a throat portion which decreases in the direction of the perforated cylinder to a diameter less than the diameter of the perforated cylinder, the diameter of the perforated cylinder being at least equal to the diameter of the throat portion at its entrant end.
Claim 2
Dependent Claim
168 words
A mixing device for mixing two fluid media with greatly different temperatures comprising a mixing chamber with inlet conduits for the two media to be mixed and an outlet conduit, said mixing chamber consisting of a substantially cylindrical housing with inlet conduits connected to one of the axial ends of this housing and transversely to the wall of this housing respectively, the outlet conduit being at the other axial end and a circumferentially perforated cylinder being positioned concentrically at some distance inside this housing in open communication with the two inlet conduits and the outlet conduit and means freely and movably supporting said perforated cylinder in said housing, the said axial inlet conduit at the location of the junction with the mixing chamber having a throat portion which decreases in the direction of the perforated cylinder to a diameter less than the diameter of the perforated cylinder, the diameter of the perforated cylinder being at least equal to the diameter of the throat portion at its entrant end.
Claim 3
Dependent Claim
61 words
A mixing device as claimed in claim 1 wherein around the axial inlet conduit where the said inlet has a throat portion decreasing in diameter towards the junction with the mixing chamber there is an annular space communicating via relatively small ports with the throat portion of this inlet conduit at one side and with the mixing chamber at the other.
Claim 4
Dependent Claim
48 words
A mixing device as claimed in claim 1, wherein around the axial outlet conduit where it connects with the mixing chamber there is likewise an annular space which communicates via relatively small ports with this outlet conduit at one side and with the mixing chamber at the other.
Claim 5
Dependent Claim
41 words
A mixing device as claimed in claim 2, wherein the outer wall of the annular spaces is formed by gradual contractions at the axial ends of the cylindrical housing which connect with the walls of the axial inlet and outlet conduits.
Claim 6
Dependent Claim
29 words
A mixing device as claimed in claim 1, wherein the perforated cylinder is positioned so that it is supported in the cylindrical housing with a certain amount of play.
Claim 7
Dependent Claim
41 words
A mixing device as claimed in claim 3, wherein the outer wall of the annular spaces is formed by gradual contractions at the axial ends of the cylindrical housing which connect with the walls of the axial inlet and outlet conduits.
References Cited (Backward Citations)
US596876A
Cited
CA638695A
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US1509718A
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DE455957C
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CH201065A
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US2631759A
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US3420268A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |