US3937444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixer
Assignee: Jenkins of Retford Ltd
•
Filing: 1974-06-17
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Granted: 1976-02-10
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Expires: 1994-06-17
Abstract
Abstract The invention concerns mixers having a mixing screw moved within a mixing receptacle both about the axis of rotation of the screw and also along a generally epicyclic path within the mixing receptacle, all movements of the screw being imparted from a single power location which permits for the provision of a satisfactory outlet location for material from the receptacle.
Inventors
- 👤 Arno Fritz Ottomar Kapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:40
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/80; B01F27/95; B01F27/953; B01F27/05; B01F27/11; B01F27/114; B01F27/1143; B01F27/23; B01F27/232; B01F27/2324
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
236 words
In combination with a mixer comprising a mixing receptacle having an axis of symmetry, a top at one end of the axis and an outlet end at an end of the axis opposite to the one end; a conveying screw in the receptacle, the conveying screw being rotatable about its axis and epicyclically, and having an end adjacent the one end of the axis and an opposite end adjacent the opposite axis end for conveying mixed material to the outlet end of the receptacle; and a universal joint coupling the opposite end of the conveying screw to the outlet end of the receptacle; a drive for the conveying screw mounted at the top of the receptacle, the drive including 1. a motor, 2. a first rotary member arranged to be driven by the motor about an axis of rotation, 3. a second rotary member mounted for rotation with an axis of rotation radially spaced from the axis of rotation of the first rotary member, a. the second rotary member supporting and rotating the end of the conveying screw adjacent the one axis end at a point radially spaced from the axis of rotation of the second rotary member; and 4. means coupling the second rotary member to the motor to be driven thereby, rotation of the first and second rotary members by the motor causing the conveying screw to be rotated about its axis and epicyclically.
Claim 2
Dependent Claim
236 words
In combination with a mixer comprising a mixing receptacle having an axis of symmetry, a top at one end of the axis and an outlet end at an end of the axis opposite to the one end; a conveying screw in the receptacle, the conveying screw being rotatable about its axis and epicyclically, and having an end adjacent the one end of the axis and an opposite end adjacent the opposite axis end for conveying mixed material to the outlet end of the receptacle; and a universal joint coupling the opposite end of the conveying screw to the outlet end of the receptacle; a drive for the conveying screw mounted at the top of the receptacle, the drive including 1. a motor, 2. a first rotary member arranged to be driven by the motor about an axis of rotation, 3. a second rotary member mounted for rotation with an axis of rotation radially spaced from the axis of rotation of the first rotary member, a. the second rotary member supporting and rotating the end of the conveying screw adjacent the one axis end at a point radially spaced from the axis of rotation of the second rotary member; and 4. means coupling the second rotary member to the motor to be driven thereby, rotation of the first and second rotary members by the motor causing the conveying screw to be rotated about its axis and epicyclically.
Claim 3
Dependent Claim
20 words
In the combination of claim 1, the mixing receptacle being conical and narrowing from the top to the outlet end.
Claim 4
Dependent Claim
47 words
In the combination of claim 1, the outlet end of the mixing receptacle defining an outlet opening coaxial with the axis of symmetry, and further comprising a ring valve mounted in the opening, and means for operating the ring valve to assume an open and closed position.
Claim 5
Dependent Claim
86 words
In the combination of claim 3, further comprising a mounting for the universal joint in the outlet opening, the ring valve being comprised of an annular valve member mounted on and sealingly surrounding the mounting, and an annular valve seat mounted on the outlet end of the mixing receptacle, the annular valve member and valve seat being coaxial with the axis of symmetry, and the operating means moving the valve member axially in relation to the valve seat to assume a selected one of the positions.
Claim 6
Dependent Claim
93 words
In the combination of claim 4, the mounting being a housing having a top end in the outlet opening and carrying the universal joint, and a bottom end defining a discharge opening, and an outlet chute attached to the outlet end of the mixing receptacle and coaxially surrounding the outlet opening and the housing, the ring valve operating means being mounted in the chute for operation from the outside thereof, and any conveyed mixed material passing through the universal joint into the housing being received through the discharge opening in the outlet chute.
References Cited (Backward Citations)
US3338562A
Cited
US3602486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-09 | 1979-08-11 | 1980-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-09 | 1983-08-11 | 1984-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-09 | 1987-08-11 | 1988-02-10 | $7700.00 | Window Closed / Lapsed |