US4090696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interfering flow pattern agitator
Assignee: EKATO WERK ERICH KARL TODTENHAUPT
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Filing: 1976-12-15
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Granted: 1978-05-23
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Expires: 1996-12-15
Abstract
Abstract The present invention is directed to an agitator for dispersing media in liquids within a vessel through the formation of interfering currents within the liquid. The interfering flow pattern agitator includes a shaft turnably mounted within the vessel, at least one stirring arm with two ends, one of which is fixed to the shaft, and mounted at the other end of each stirring arm, a plurality of component blades.
Inventors
- 👤 Klausdieter Kipke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:58
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/07; B01F27/072; B01F27/0724
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
162 words
An interfering flow pattern agitator for dispersing media in liquids within a vessel, comprising in combination a shaft mounted for rotation within the vessel about an upright axis; at least one rectilinear stirring arm projecting from said shaft transversely of said axis and having an inner end fixed to said shaft and an outer end remote from said inner end; and a pair of interference-flow producing component sub-blades mounted on said outer end of said arm, said inner end forming an inner blade inclined along an acute angle from a plane perpendicular to said shaft, said sub-blades being inclined along an acute angle from a plane perpendicular to said shaft and inverse to the inclination of said inner blade, said sub-blades being so spaced from one another that the flow patterns produced by the respective sub-blades interfere with one another with a resulting reduction in flow resistance, whereby opposing flow patterns cause an interfering fluid motion in the form of cascading currents.
Claim 2
Dependent Claim
162 words
An interfering flow pattern agitator for dispersing media in liquids within a vessel, comprising in combination a shaft mounted for rotation within the vessel about an upright axis; at least one rectilinear stirring arm projecting from said shaft transversely of said axis and having an inner end fixed to said shaft and an outer end remote from said inner end; and a pair of interference-flow producing component sub-blades mounted on said outer end of said arm, said inner end forming an inner blade inclined along an acute angle from a plane perpendicular to said shaft, said sub-blades being inclined along an acute angle from a plane perpendicular to said shaft and inverse to the inclination of said inner blade, said sub-blades being so spaced from one another that the flow patterns produced by the respective sub-blades interfere with one another with a resulting reduction in flow resistance, whereby opposing flow patterns cause an interfering fluid motion in the form of cascading currents.
Claim 3
Dependent Claim
12 words
An agitator as defined in claim 1, wherein said shaft is vertical.
Claim 4
Dependent Claim
24 words
An agitator as defined in claim 2, wherein each stirring arm is shaped as a blade, whereby said stirring arm forms an inner blade.
Claim 5
Dependent Claim
16 words
An agitator as defined in claim 1, wherein said component sub-blades are parallel to each other.
Claim 6
Dependent Claim
27 words
An agitator as defined in claim 4, wherein the lengths of said component sub-blades are inclined along an acute angle from a plane perpendicular to said shaft.
Claim 7
Dependent Claim
27 words
An agitator as defined in claim 5, wherein the component sub-blades are tandem joined below said inner blade and are vertical to the surface of the liquid.
Claim 8
Dependent Claim
16 words
An agitator as defined in claim 6, wherein said component sub-blades are adjustable to different orientations.
Claim 9
Dependent Claim
27 words
An agitator as defined in claim 1, wherein the lengths of said component sub-blades are inclined in different directions relative to a plane perpendicular to said shaft.
Claim 10
Dependent Claim
16 words
An agitator as defined in claim 1, wherein the dimensions of each component sub-blade are different.
Claim 11
Dependent Claim
20 words
An agitator as defined in claim 1, wherein each component sub-blade further comprises at least two sub-blade sections spaced apart.
Claim 12
Dependent Claim
21 words
An agitator as defined in claim 10, wherein the sub-blade sections of opposing component sub-blades are arranged parallel to each other.
Claim 13
Dependent Claim
19 words
An agitator as defined in claim 11, wherein the spacing between sub-blade sections of different component sub-blades is constant.
Claim 14
Dependent Claim
19 words
An agitator as defined in claim 10, wherein the spacing between sub-blade sections varies among the different component sub-blades.
Claim 15
Dependent Claim
24 words
An agitator as defined in claim 1, wherein each end of each component sub-blade is connected to the corresponding end of another component sub-blade.
Claim 16
Dependent Claim
14 words
An agitator as defined in claim 14, wherein the connected component sub-blades form tubes.
Claim 17
Dependent Claim
17 words
An agitator as defined in claim 14, wherein the connected component sub-blades are part of a rectangle.
Claim 18
Dependent Claim
30 words
An agitator as defined in claim 3, wherein the pitch of the component sub-blades in each plane is the same as that of the blades in all the other planes.
Claim 19
Dependent Claim
22 words
An agitator as defined in claim 3, wherein the pitch of the blades varies from one to the next of said planes.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |