Patent EP0797204A2 successfully refreshed from Google Patents.
Patent US3559957A successfully refreshed from Google Patents.
US3559957A
Expired / Lapsed
US
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Turbine-type chlorine mixer
Assignee: Stadler Hurter International Ltd
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Filing: 1968-10-11
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Granted: 1971-02-02
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Expires: 1988-10-11
Abstract
Abstract An apparatus for continuously mixing together pulp and chlorine which comprises a cylindrical casing, spaced-apart stationary agitating elements extending in a circular row about, and attached to, the inner wall of the casing, and a plurality of spaced-apart, radially extending blades mounted on an axial, rotatable shaft within the casing.
Inventors
- 👤 Alfred Max Hurter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:53
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01F; B01F27/00; B01F27/60; B01F27/70; B01F27/707; B01J2219/00; B01J2219/18; B01J2219/182
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
45 words
A mixer as claimed in claim 1, wherein the radial inner ends of said walls of each stationary element are joined to form the free end edge of each stationary element, each free end edge extending substantially parallel to the longitudinal axis of the shaft.
Claim 2
Dependent Claim
25 words
A mixer as claimed in claim 2, wherein said deflecting surfaces include a second pair of walls extending transversely to the first pair of walls.
Claim 3
Dependent Claim
34 words
A mixer as claimed in claim 3, wherein said second pair of walls comprise end walls joined to said first pair of walls, said end walls sloping inwardly from the casing toward each other.
Claim 4
Dependent Claim
25 words
A mixer as claimed in claim 4, wherein said first pair of walls are trapezoidal in shape and the end walls are triangular in shape.
Claim 5
Dependent Claim
44 words
A mixer as claimed in claim 1, including two rings, concentric to the axis of the shaft, one ring located on one side of each blade, the rings attached to the respective side edges of the blades for directing the material to the blades.
Claim 6
Dependent Claim
30 words
A mixer as claimed in claim 6, wherein the rings have a segmented conical shape with the large diameter of the ring attached to the side edges of the blades.
Claim 7
Dependent Claim
131 words
A mixer as claimed in claim 1, including a second set of agitating elements, said second set of agitating elements comprising a plurality of blades attached at one end about a second circumferential section of the shaft and extending substantially radially outwardly therefrom toward the inner wall of the casing to terminate in free end edges, said second circumferential section of the shaft spaced longitudinally along the shaft from said first circumferential section, a plurality of spaced-apart stationary elements attached about a second circumferential section of the casing, which second section is aligned with the second circumferential section of the shaft, said stationary elements attached at one end to the casing and extending inwardly toward the rotatable shaft to terminate in free end edges, said stationary elements having material deflecting surfaces.
Claim 8
Dependent Claim
71 words
A mixer as claimed in claim 8, wherein the casing has a length approximately twice its diameter, said first set of agitating elements located in a diametrical plane spaced a distance equal to approximately one-half the diameter of the casing from one end of the casing, said second set of agitating elements spaced a distance equal to approximately one-half the diameter of the casing from the other end of the casing.
References Cited (Backward Citations)
US3319937A
Cited
US3321283A
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 |