US3176965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counter-rotating disc mixer
Assignee: Dow Chemical Co
•
Filing: 1962-08-22
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Granted: 1965-04-06
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Expires: 1982-08-22
Abstract
No abstract record available.
Inventors
- 👤 Walter J Schrenk
- 👤 Douglas S Chisholm
- 👤 Jr Turner Alfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:16
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/361; B01; B01F; B01F25/00; B01F25/40; B01F25/438; B29C48/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
APPARATUS FOR MIXING DIVERSE VISCOUS LIQUIDS COMPRISING IN COMBINATION, ROTATABLE DISC MIXER MEANS HAVING ADJACENT FACES SPACED APART TO PROVIDE A DISC LIKE MIXING CHAMBER IN AN ALTERNATE SEQUENTIAL PATTERN, MEANS SAID CHAMBER AN IN ALTERNATE SEQUENTIAL PATTERN, MEANS TO ROTATE SAID DISC MIXER MEANS TO INDUCE A SHEAR STRESS IN THE VISCOUS LIQUIDS TO CAUSE A MIXING TOGETHER THEREOF, AND MEANS TO REMOVE SAID LIQUIDS FROM SAID CHAMBER.
Claim 2
Dependent Claim
69 words
APPARATUS FOR MIXING DIVERSE VISCOUS LIQUIDS COMPRISING IN COMBINATION, ROTATABLE DISC MIXER MEANS HAVING ADJACENT FACES SPACED APART TO PROVIDE A DISC LIKE MIXING CHAMBER IN AN ALTERNATE SEQUENTIAL PATTERN, MEANS SAID CHAMBER AN IN ALTERNATE SEQUENTIAL PATTERN, MEANS TO ROTATE SAID DISC MIXER MEANS TO INDUCE A SHEAR STRESS IN THE VISCOUS LIQUIDS TO CAUSE A MIXING TOGETHER THEREOF, AND MEANS TO REMOVE SAID LIQUIDS FROM SAID CHAMBER.
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |