US3559956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planetary gear mixer
Assignee: EIDP Inc
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Filing: 1968-05-27
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Granted: 1971-02-02
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Expires: 1988-05-27
Abstract
Abstract A planetary gear mixer having multiple sets of mixing gears offset one set from another circumferentially to eliminate longitudinal leakage paths therethrough.
Inventors
- 👤 Joseph B Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:33
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/60; B01F27/75; B01F27/755
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
136 words
A planetary gear mixer comprising, in combination, a housing provided with a cylindrical bore in open communication at the ends with a supply port and a discharge port, respectively, for throughput of material to be mixed, a drive pinion mounted longitudinally axial of said cylinder in concentric relationship with respect to a stationary internal gear fixed in tight abutment with the periphery of said bore and a multiplicity of sets of mixing gears meshed with and interposed between said drive pinion on the one hand and said internal gear on the other hand, said mixing gears of any given one of said sets being arranged in a common plane transverse said bore and longitudinally adjoining sets of said mixing gears being offset one from another angularly circumferentially of said drive pinion in a preselected arrangement pattern.
Claim 2
Dependent Claim
136 words
A planetary gear mixer comprising, in combination, a housing provided with a cylindrical bore in open communication at the ends with a supply port and a discharge port, respectively, for throughput of material to be mixed, a drive pinion mounted longitudinally axial of said cylinder in concentric relationship with respect to a stationary internal gear fixed in tight abutment with the periphery of said bore and a multiplicity of sets of mixing gears meshed with and interposed between said drive pinion on the one hand and said internal gear on the other hand, said mixing gears of any given one of said sets being arranged in a common plane transverse said bore and longitudinally adjoining sets of said mixing gears being offset one from another angularly circumferentially of said drive pinion in a preselected arrangement pattern.
Claim 3
Dependent Claim
49 words
A planetary gear mixer according to claim 1 wherein said preselected arrangement pattern constitutes a progressive offset of said longitudinally adjoining sets of said mixing gears angularly circumferentially of said drive pinion in the same direction to present a generally helical flow course to material passed through said mixer.
Claim 4
Dependent Claim
46 words
A planetary gear mixer according to claim 1 wherein said preselected arrangement pattern constitutes an offset of said longitudinally adjoining sets of said mixing gears angularly circumferentially of said drive pinion in alternAte directions for successive pairs of said longitudinally adjoining sets of said mixing gears.
References Cited (Backward Citations)
US3362793A
Cited
US3443798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |