Patent US3635449A successfully refreshed from Google Patents.
US3635449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixer
Assignee: Individual
•
Filing: 1970-10-05
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Granted: 1972-01-18
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Expires: 1990-10-05
Abstract
Abstract A mixer is comprised of a flat rotating disc over which is placed a confining wall that begins near the center of the disc and curves outwardly, generally spirallike, terminating at the outer edge of the disc. Material is supplied at the center of the rotating disc and is guided by the confining wall outwardly to the outer edge of the disc. Mixing paddles are disposed in the path of the material. An adjustable gate is provided at the exit opening defined by the terminal edge of the confining wall and is adjustably mounted for closing off or restricting the flow of material through the exit opening.
Inventors
- 👤 Milton W Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:26
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/08; B28C5/18; B28C5/26; B01; B01F; B01F29/00; B01F29/80; B01F29/83
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
123 words
A constant flow mixer comprising a rotatable horizontal disc having a surface to carry the material to be mixed; a curved stationary confining wall having a bottom edge located adjacent said surface so as to form in conjunction with said disc a spirallike material-carrying passageway of more than one revolution beginning near the center of the disc and extending outwardly to an outlet adjoining the edge of the disc, a deflector mounted at said outlet for guiding the discharging mixed material to said edge, a plurality of mixing units having paddles disposed in said material-carrying passageway; means for depositing material to be mixed into said material-carrying passageway near its beginning; and means for rotating said disc to move the material through said passageway.
Claim 2
Dependent Claim
123 words
A constant flow mixer comprising a rotatable horizontal disc having a surface to carry the material to be mixed; a curved stationary confining wall having a bottom edge located adjacent said surface so as to form in conjunction with said disc a spirallike material-carrying passageway of more than one revolution beginning near the center of the disc and extending outwardly to an outlet adjoining the edge of the disc, a deflector mounted at said outlet for guiding the discharging mixed material to said edge, a plurality of mixing units having paddles disposed in said material-carrying passageway; means for depositing material to be mixed into said material-carrying passageway near its beginning; and means for rotating said disc to move the material through said passageway.
Claim 3
Dependent Claim
31 words
The mixer of claim 1 wherein said deflector is adjustably mounted for closing a predetermined amount so as to restrict the flow of material through said outlet to obtain additional mixing.
Claim 4
Dependent Claim
31 words
The mixer of claim 2 wherein said outlet is defined by the terminal edge of said confining wall and the outside surface of the next inner spiral of said confining wall.
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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |