US3988112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nozzle sterilizer providing outer and inner annular concentric cooling jets
Assignee: Alfa Laval AB
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Filing: 1974-12-06
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Granted: 1976-10-26
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Expires: 1994-12-06
Abstract
Abstract Annular concentric jets of steam and a liquid to be sterilized, respectively, are contacted with each other in a jet nozzle; and the resulting annular jet of steam-heated liquid is swept along both its inside and its outside by two additional annular jets of cold liquid concentric to the first-mentioned jets, thereby preventing material from the liquid to be sterilized from burning onto surfaces of the jet nozzle.
Inventors
- 👤 Bjorn-Olow Johansson
- 👤 Bengt Arne Palm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:14
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/40; A23B2/42; A23B2/46; A23B11/00; A23B11/10; A23B11/12; A23B11/13; A23B11/133; A23B11/137; A23B2/48; A61; A61L; A61L2/00; A61L2/02; A61L2/04; A61L2/06; A61L2/07
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
93 words
Apparatus for sterilizing a liquid such as milk, blood or the like, which comprises a jet nozzle having body means forming four annular concentric channels, namely, an innermost channel, an outermost channel and two intermediate channels intermediate said innermost and outermost channels, a central plug around the outside of which said four channels open, whereby said channel openings surround the central plug a source of steam and a source of liquid to be sterilized connected, respectively, to the two intermediate channels, and means for supplying cold liquid to said innermost and outermost channels.
Claim 2
Dependent Claim
93 words
Apparatus for sterilizing a liquid such as milk, blood or the like, which comprises a jet nozzle having body means forming four annular concentric channels, namely, an innermost channel, an outermost channel and two intermediate channels intermediate said innermost and outermost channels, a central plug around the outside of which said four channels open, whereby said channel openings surround the central plug a source of steam and a source of liquid to be sterilized connected, respectively, to the two intermediate channels, and means for supplying cold liquid to said innermost and outermost channels.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1, in which said source of liquid to be sterilized is connected to the intermediate channel next to said innermost channel.
Claim 4
Dependent Claim
43 words
The apparatus of claim 1, in which the channel connected to the source of liquid to be sterilized communicates with at least one of said innermost and outermost channels at a region upstream from where the four channels open around the central plug.
Claim 5
Dependent Claim
20 words
The apparatus of claim 1, in which the central plug has a tapered portion around which said four channels open.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |