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US3787034A Expired / Lapsed US ⏱️ 0.0 years remaining

Device for continuous mixing of powdered materials

Assignee: Individual
•
Filing: 1971-07-28
•
Granted: 1974-01-22
•
Expires: 1991-07-28
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Abstract

Abstract A device for continuous mixing of powdered materials which include ferro-magnetic components, has a drum mounted for rotation on its own axis and made in the form of a polyhedral truncated pyramid. The drum is disposed with the axis inclined to the horizontal and is fed at one end thereof with powdered materials which are to be thoroughly mixed, and the mixed materials are discharged at the other end. The inside of the drum is provided on its longitudinal edges with rigidly mounted baffles which are made of ferromagnetic material, and the baffles are arranged along a helix. A magnetic system which can generate a pulse magnetic field is stationarily mounted above the drum and parallel to a generatrix of the drum. The magnetic field reaches the inside of the drum through the ferromagnetic baffles which act as cores and aids a redistribution and thorough mixing of the ferromagnetic components with the rest of the components in the powdered material. In order to increase the effect of the pulse magnetic field by effectively increasing the proximity of the baffles to the magnetic system, additional ferromagnetic members may be securingly mounted on the outside of the drum to rotate therewith and arranged so as to nearly bridge a gap between the drum and the magnetic means, whereby the effect of the magnetic field inside the drum is increased.

Inventors

  • 👤 V Shvartsman
  • 👤 A Gaiduchenko

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 06:19
CPC Classifications
B; B01; B01F; B01F29/00; B01F29/25; B01F29/40; B01F29/401; B01F29/4011; B01F29/40113; B01F29/60; B01F29/63; B01F33/00; B01F33/45; B01F29/403; B01F29/4033

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 170 words
A device for continuous mixing of powdered materials having ferromagnetic components therein, comprising: a drum mounted for rotation on its own longitudinal axis and made in the form of a polyhedral truncated pyramid which is fed at one end thereof with powdered materials to be mixed which after mixing get discharged at the other end; a means for rotating said drum on said longitudinal axis; a means for charging the powdered materials at said one end; a means for discharging the mixed materials at said other end; baffle plates made of ferromagnetic material and fastened rigidly to an inner side of the drum and overlapping partially the drum cavity in cross section; and a stationary magnetic system means mounted adjacent to and outside of the drum for generating a pulse magnetic field which is conveyed into the drum cavity through the ferromagnetic baffle plates to reach the powdered materials, so as to improve the mixing of said ferromagnetic components in the powdered materials with the rest of the powdered materials.
Claim 2
Independent Claim 170 words
A device for continuous mixing of powdered materials having ferromagnetic components therein, comprising: a drum mounted for rotation on its own longitudinal axis and made in the form of a polyhedral truncated pyramid which is fed at one end thereof with powdered materials to be mixed which after mixing get discharged at the other end; a means for rotating said drum on said longitudinal axis; a means for charging the powdered materials at said one end; a means for discharging the mixed materials at said other end; baffle plates made of ferromagnetic material and fastened rigidly to an inner side of the drum and overlapping partially the drum cavity in cross section; and a stationary magnetic system means mounted adjacent to and outside of the drum for generating a pulse magnetic field which is conveyed into the drum cavity through the ferromagnetic baffle plates to reach the powdered materials, so as to improve the mixing of said ferromagnetic components in the powdered materials with the rest of the powdered materials.
Claim 3
Dependent Claim 29 words
A device of claim 1, in which the said magnetic system is disposed substantially parallel to a generatrix of the said drum and is made up of separate electromagnets.
Claim 4
Dependent Claim 42 words
A device of claim 2, in which the said baffle plates are located on the edges of the said pyramid along a helical line so that when the pyramid is revolved they are alternately disposed under appropriate electromagnets of the magnetic system.
Claim 5
Dependent Claim 44 words
A device of claim 1, in which the axis of the drum is somewhat inclined to the horizontal and said magnetic system encompasses an upper portion of the said drum and consists of separate rows of the electromagnets disposed along generatrices of the drum.
Claim 6
Dependent Claim 54 words
A device of claim 4, in which the baffle plates of ferromagnetic material are mounted on the edges of the said pyramid along the helical line so that when the pyramid is revolved all the cores located in an upper portion of the drum are simultaneously placed under appropriate electromagnets of the magentic system.
Claim 7
Dependent Claim 40 words
A device of claim 1, in which rigidly fastened to the exterior of the said drum and aligned with each said baffle plate is a ferro-magnetic member which forms a magnetic extension of the corresponding baffle plate of electromagnetic material.

References Cited (Backward Citations)

US746629A Cited
US2088099A Cited
US2394450A Cited
US2774803A Cited
US3502304A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-01-21 1977-07-23 1978-01-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-01-21 1981-07-23 1982-01-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-01-21 1985-07-23 1986-01-22 $7700.00 Window Closed / Lapsed

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