Patent US5357431A successfully refreshed from Google Patents.
Patent US3068074A successfully refreshed from Google Patents.
US3068074A
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US
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Angle valved mixer
Assignee: Mechanical Handling Systems Inc
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Filing: 1958-12-02
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Granted: 1962-12-11
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Expires: 1978-12-02
Abstract
No abstract record available.
Inventors
- 👤 Boekemeier Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:43
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/405; Y; Y10; Y10S; Y10S366/00; Y10S366/604
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A MIXER COMPRISING MEANS PROVIDING A MIXING CHAMBER AXIALLY RECEIVING A MIXTURE ROTOR, A VALUE MANIFOLD CONNECTED TO SAID MEANS AND HAVING AN AXIAL OPENING COMMUNICATING WITH SAID CHAMBER, A BEARING DEVICE CONNECTED TO SAID MANIFORD, A SHAFT ROTATABLY MOUNTED BY SAID BEARING DEVICE AND EXTENDING THROUGH SAID AXIAL MANIFOLD OPENING TO A DRIVING CONNECTION WITH SAID MIXING ROTOR, SAID SHAFT HAVING AN EXTERNAL HELIX FORMATION IN THE ZONE OF SAID OPENING IN A RELATIVELY CLOSE TOLERANCE RADIAL RELATION TO THE LATTER AND ACTING TO AFFORD A CONTACT-FREE LIQUID SEAL IN SAID ZONE WHEN THE SHAFT IS ROTATED, SAID MANIFOLD BEING PROVIDED WITH VALUE BORES SPACED ANGULARLY ABOUT THE AXIS OF SAID SHAFT AND OPENING TO SAID MIXING CHAMBER, AND VALUE UNITS SECURED ON SAID MANIFOLD AND RECEIVED IN SAID RESPECTIVE BORES, SAID UNITS EACH INCLUDING AN INLET
Claim 2
Dependent Claim
138 words
A MIXER COMPRISING MEANS PROVIDING A MIXING CHAMBER AXIALLY RECEIVING A MIXTURE ROTOR, A VALUE MANIFOLD CONNECTED TO SAID MEANS AND HAVING AN AXIAL OPENING COMMUNICATING WITH SAID CHAMBER, A BEARING DEVICE CONNECTED TO SAID MANIFORD, A SHAFT ROTATABLY MOUNTED BY SAID BEARING DEVICE AND EXTENDING THROUGH SAID AXIAL MANIFOLD OPENING TO A DRIVING CONNECTION WITH SAID MIXING ROTOR, SAID SHAFT HAVING AN EXTERNAL HELIX FORMATION IN THE ZONE OF SAID OPENING IN A RELATIVELY CLOSE TOLERANCE RADIAL RELATION TO THE LATTER AND ACTING TO AFFORD A CONTACT-FREE LIQUID SEAL IN SAID ZONE WHEN THE SHAFT IS ROTATED, SAID MANIFOLD BEING PROVIDED WITH VALUE BORES SPACED ANGULARLY ABOUT THE AXIS OF SAID SHAFT AND OPENING TO SAID MIXING CHAMBER, AND VALUE UNITS SECURED ON SAID MANIFOLD AND RECEIVED IN SAID RESPECTIVE BORES, SAID UNITS EACH INCLUDING AN INLET
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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |