US4007007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for decontaminating liquids of bacteria
Assignee: Individual
•
Filing: 1974-02-22
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Granted: 1977-02-08
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Expires: 1994-02-22
Abstract
Abstract An apparatus for the decontamination of a bacteria-containing liquid comprises a pair of vertically spaced juxtaposed horizontal disks whose confronting faces are formed with mutually registering alternating annular grooves and lands of trapezoidal profile to define a succession of horizontally spaced compartments communicating through passages between them. When the disk is rotated with a peripheral speed of between 200 and 800 m/sec., bacteria contained in the liquid is destroyed.
Inventors
- 👤 Hans Otto Ernst Gazda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:42
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A23; A23B; A23B2/00; A23B2/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
An apparatus for decontaminating bacteria-containing liquid comprising: a rotary disk formed by a pair of vertically spaced horizontal plates having juxtaposed faces formed with registering radially spaced relatively wide recesses and defining relatively narrow passages between said recesses for communicating between them, said recesses and passages being radially aligned; an inlet opening into an inner one of said passages for delivering said liquid to the interior of said disk; an outlet along the periphery of said disk for said liquid; means for rotating said disk at a peripheral speed sufficient to centrifugally displace said liquid at high velocity between said plates, said passages being sufficiently narrow and said recesses being sufficiently wide that said high velocity causes substantial changes in acceleration of said liquid at junctions of said passages with said recesses to destroy bacteria present in the liquid; and means for applying a voltage of approximately 70 volts to said plates.
Claim 2
Independent Claim
152 words
An apparatus for decontaminating bacteria-containing liquid comprising: a rotary disk formed by a pair of vertically spaced horizontal plates having juxtaposed faces formed with registering radially spaced relatively wide recesses and defining relatively narrow passages between said recesses for communicating between them, said recesses and passages being radially aligned; an inlet opening into an inner one of said passages for delivering said liquid to the interior of said disk; an outlet along the periphery of said disk for said liquid; means for rotating said disk at a peripheral speed sufficient to centrifugally displace said liquid at high velocity between said plates, said passages being sufficiently narrow and said recesses being sufficiently wide that said high velocity causes substantial changes in acceleration of said liquid at junctions of said passages with said recesses to destroy bacteria present in the liquid; and means for applying a voltage of approximately 70 volts to said plates.
References Cited (Backward Citations)
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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) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |