US4808007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual viscosity mixer
Assignee: Komax Systems Inc
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Filing: 1987-08-27
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Granted: 1989-02-28
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Expires: 2007-08-27
Abstract
Abstract A device for the mixing of two or more fluids is disclosed which comprises an elongated hollow tubular member which is constricted intermediate its ends with a mixing zone comprising (a) at least two cylindrical orifices whose axes are substantially parallel to the axis of the tubular member for carrying a first fluid and (b) a fluid entry port for discharging a second fluid substantially between said two cylindrical orifices. The device is particularly advantageous when used for the mixing of two fluids having widely disparate viscosities.
Inventors
- 👤 L. Tony King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:04
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/313
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
121 words
A device for the mixing of two or more fluids comprising an elongated substantially hollow tubular member having a longitudinal axis in which said hollow tubular member is constricted intermediate its ends with a mixing zone comprising (A) at least two orifices for carrying a first fluid having substantially circular cross-sections and having longitudinal axes which are substantially parallel to the longitudinal axis of the substantially hollow tubular member, said orifices being situated and sized within the said substantially hollow tubular member such that said substantially circular cross-sections have a point of substantial mutual tangency; and (B) A fluid entry port for discharging the second fluid at a point substantially coincident with the point of substantial mutual tangency of said orifices.
Claim 2
Independent Claim
121 words
A device for the mixing of two or more fluids comprising an elongated substantially hollow tubular member having a longitudinal axis in which said hollow tubular member is constricted intermediate its ends with a mixing zone comprising (A) at least two orifices for carrying a first fluid having substantially circular cross-sections and having longitudinal axes which are substantially parallel to the longitudinal axis of the substantially hollow tubular member, said orifices being situated and sized within the said substantially hollow tubular member such that said substantially circular cross-sections have a point of substantial mutual tangency; and (B) A fluid entry port for discharging the second fluid at a point substantially coincident with the point of substantial mutual tangency of said orifices.
Claim 3
Dependent Claim
26 words
The device of claim 1 wherein the side walls of said constriction are tapered with respect to the side walls of the elongated hollow tubular member.
Claim 4
Dependent Claim
23 words
The device of claim 2 wherein said taper is approximately 45° with respect to the side walls of the elongated hollow tubular member.
Claim 5
Dependent Claim
44 words
The device of claim 1 wherein said second fluid entry port comprises an orifice formed at the distal ends of a solid rod and hollow tube, said solid rod and hollow tube radially extending through the side walls of said elongated hollow tubular member.
Claim 6
Dependent Claim
41 words
The device of claim 1 wherein said fluid entry port is configured from a hole in a hollow tube which passes through the center points of each orifice and extends radially through the side walls of said elongated hollow tubular member.
Claim 7
Dependent Claim
41 words
The device of claim 4 wherein said mixing zone comprises two orifices and said solid rod and hollow tube forming said second entry port pass through the body and side walls of said elongated hollow tubular member between said two orifices.
Claim 8
Dependent Claim
40 words
The device of claim 1 wherein said mixing zone comprises four orifices for carrying said first fluid and a fluid entry port for discharging said second fluid substantially at the point of tangency of at least two of said orifices.
Claim 9
Dependent Claim
25 words
The device of claim 7 wherein each of said four orifices are located at 0°, 90°, 180°, and 270° about said substantially hollow tubular member.
Claim 10
Dependent Claim
21 words
The device of claim 8 wherein each of said four orifices are of approximately the same cross-sectional area to one another.
Claim 11
Dependent Claim
32 words
The device of claim 8 wherein the orifices located at 0° and 180° about said substantially hollow tubular member are larger in cross-sectional area than said orifices located at 90° and 270°.
Claim 12
Dependent Claim
38 words
The device of claim 1 wherein said mixing zone comprises three orifices for carrying said first fluid and a fluid entry port for discharging said second fluid substantially at the point of mutual tangency of said three orifices.
Claim 13
Dependent Claim
21 words
The device of claim 11 wherein each of said three orifices are of approximately the same cross-sectional area to one another.
Claim 14
Dependent Claim
22 words
The device of claim 12 wherein the three orifices are located at 0°, 120°, and 240° about said substantially hollow tubular member.
Claim 15
Dependent Claim
39 words
The device of claim 1 wherein said mixing zone comprises six orifices for carrying said first fluid and fluid entry port for discharging said second fluid substantially at the point of tangency of at least three of said orifices.
Claim 16
Dependent Claim
24 words
The device of claim 14 wherein the orifices are located at 0°, 60°, 120°, 180°, 240°, and 300°, about said substantially hollow tubular member.
Claim 17
Dependent Claim
34 words
The device of claim 15 wherein the orifices located at 0°, 120°, and 240° about said substantially hollow tubular member are larger in cross-sectional area than said orifices located at 60°, 180°, and 300°.
Claim 18
Dependent Claim
17 words
The device of claim 1 further comprising a static mixer located downstream of said hollow tubular member.
Claim 19
Dependent Claim
131 words
The device of claim 17 wherein said static mixer comprises a conduit having a longitudinal axis, and having fitted therein one or more abutting, self-nesting elements, wherein adjacent elements are configured as mirror images of one another, each element having lengths along the longitudinal axes of the conduit wherein adjacent elements axially overlap defining mixing matrices inducing both counter-rotating angular velocities relative to said longitudinal axis and simultaneous inward and outward radial velocities relative to said longitudinal axis on materials moving through said mixing matrices, each element having a length along the longitudinal axis wherein said elements do not axially overlap, the axial non-overlap lengths of said elements being the length of the longitudinal axis defining draft spaces for the recombination of said liquids subsequent to movement through the mixing matrices.
References Cited (Backward Citations)
US3749377A
Cited
US4054619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-28 | 1992-08-29 | 1993-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-28 | 1996-08-29 | 1997-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-28 | 2000-08-29 | 2001-02-28 | $7700.00 | Window Closed / Lapsed |