Patent US3677522A successfully refreshed from Google Patents.
US3677522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeder stream mixer
Assignee: Dow Chemical Co
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Filing: 1970-12-02
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Granted: 1972-07-18
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Expires: 1990-12-02
Abstract
Abstract The invention relates to a device for dispersing, dissolving and/or mixing viscous materials which uses no power driven or moving parts. The device comprises an in-line chamber having an entry and exit end. There is an axially disposed baffled viscous material nozzle near the input and whereby the viscous material entering the chamber from said nozzle is sheared by solvent flow through the chamber. Baffle plates arrayed across the exit end result in turbulent flow and further mixing before the materials leave through the exit end. As the viscous material is pumped against an adjustable dished heat it emerges as a thin sheet which is sheared by the flow of solvents which flows through the sheet. Mixing is aided by turbulent flow in the device plus perforated baffle plates in the flow path through the device.
Inventors
- 👤 Paul Hargash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:19
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/40
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
258 words
Mixing apparatus comprising a blocklike cylindrical body part having a central bore extending axially therethrough and a viscous materials feed bore extending transversely from an outer surface of said body part to said central bore, a hollow tubular element substantially larger in diameter than the diameter of said central bore, an end cap having an axial bore, said tubular element being axially aligned with said central bore with said end cap sealing one end thereof and the other end of said tubular element being sealed against an end of said body member to thereby define a chamber within said tubular element, said end cap having mixed materials outlet bore therein, a viscous materials introduction member, said introduction member being disposed in said central bore, said introduction member having a hollow tubular body, a closed end having a tapered outer surface, an open end, centralizing spacer elements extending from said tubular body and slidably engaging the wall of said central bore, a viscous materials inlet bore extending transversely through said tubular body, and a dished element fixedly coupled to said body and presenting a concave surface adjacent to said open end, means coupling said viscous materials feed bore to said viscous materials inlet bore, means for coupling a solvent inlet line to said central bore on the end thereof remote from said chamber, means for coupling a mixed materials outlet line to said axial bore in said end cap, and an array of baffle plates disposed in the flow path of materials which are being mixed in said chamber.
Claim 2
Dependent Claim
258 words
Mixing apparatus comprising a blocklike cylindrical body part having a central bore extending axially therethrough and a viscous materials feed bore extending transversely from an outer surface of said body part to said central bore, a hollow tubular element substantially larger in diameter than the diameter of said central bore, an end cap having an axial bore, said tubular element being axially aligned with said central bore with said end cap sealing one end thereof and the other end of said tubular element being sealed against an end of said body member to thereby define a chamber within said tubular element, said end cap having mixed materials outlet bore therein, a viscous materials introduction member, said introduction member being disposed in said central bore, said introduction member having a hollow tubular body, a closed end having a tapered outer surface, an open end, centralizing spacer elements extending from said tubular body and slidably engaging the wall of said central bore, a viscous materials inlet bore extending transversely through said tubular body, and a dished element fixedly coupled to said body and presenting a concave surface adjacent to said open end, means coupling said viscous materials feed bore to said viscous materials inlet bore, means for coupling a solvent inlet line to said central bore on the end thereof remote from said chamber, means for coupling a mixed materials outlet line to said axial bore in said end cap, and an array of baffle plates disposed in the flow path of materials which are being mixed in said chamber.
Claim 3
Dependent Claim
35 words
Apparatus in accordance with claim 1, wherein said means coupling said viscous materials feed bore to said viscous materials inlet bore comprises an inlet tube extending through said bores and coupled to said introduction member.
Claim 4
Dependent Claim
21 words
Apparatus in accordance with claim 1, wherein said array of baffle plates is coupled to and supported from said end cap.
Claim 5
Dependent Claim
24 words
Apparatus in accordance with claim 1, wherein the open end of said introduction member has its outer wall surface tapered inwardly towards said end.
Claim 6
Dependent Claim
31 words
Apparatus in accordance with claim 1, wherein said viscous materials feed bore and said viscous materials inlet bore are aligned and are perpendicular to the longitudinal axis of said body part.
Claim 7
Dependent Claim
38 words
Apparatus in accordance with claim 1, wherein said array of baffle plates includes at least three plates including at least one intermediate plate which fits closely but slidably with respect to the inner wall of said tubular element.
Claim 8
Dependent Claim
32 words
Apparatus in accordance with claim 1, wherein bolts extending from said body part to said end cap are used to seal said tubular element to said body part and said end cap.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |