US3632090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing device
Assignee: MODAY Inc
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Filing: 1970-09-14
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Granted: 1972-01-04
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Expires: 1990-09-14
Abstract
Abstract A mixer without moving parts for intimately combining different materials such as resins, foods, paints, cosmetics, bulk chemicals, pharmaceuticals, dry powders, and the like, including an elongate tubular structure having an inlet adapted to receive a stream of two or more relatively unmixed materials, an outlet, and a plurality of sections between the inlet and outlet shaped to thin and widen the stream flowing longitudinally from inlet to outlet and fold the thinned stream laterally over upon itself, then repeat the thinning and folding process as many times as desired or necessary to produce intimate mixing.
Inventors
- 👤 George H White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:52
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/40; B01F25/42; B01F25/43; B01F25/433
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
65 words
A mixing device, comprising, an elongate tubular structure having an inlet adjacent one end, an outlet spaced from the inlet, and means defining a passage communicating the inlet with the outlet and shaped to thin and widen a stream flowing longitudinally from the inlet toward the outlet, and fold the thinned and widened stream laterally upon itself, and Join the folded layers of the stream.
Claim 2
Dependent Claim
65 words
A mixing device, comprising, an elongate tubular structure having an inlet adjacent one end, an outlet spaced from the inlet, and means defining a passage communicating the inlet with the outlet and shaped to thin and widen a stream flowing longitudinally from the inlet toward the outlet, and fold the thinned and widened stream laterally upon itself, and Join the folded layers of the stream.
Claim 3
Dependent Claim
54 words
A mixing device as defined in claim 1, wherein the means forming said passage comprises a tubular member having an inlet end of generally oval cross section, an intermediate portion of decreasing thickness and increasing width, and an outlet end having a minimum thickness and a maximum width and folded laterally over upon itself.
Claim 4
Dependent Claim
65 words
A mixing device as defined in claim 1 wherein the means forming said passage comprises a tubular member defining an inlet passage area of generally rectangular cross section, an intermediate passage area of decreasing thickness and increasing width, and an outlet passage area having a thickness about half the inlet thickness and a width about twice the inlet width, and folded laterally over upon itself.
Claim 5
Dependent Claim
95 words
A static mixing device for combining longitudinally flowing materials, comprising, an elongate tubular structure having an inlet at one end for receiving a stream including a plurality of relatively unmixed materials, an outlet at the opposite end for discharging intimately mixed materials, and means defining a passage connecting the inlet and the outlet and shaped to thin, widen and fold the longitudinally flowing stream over upon itself, join the folded layers of the stream, and then repeatedly thin, widen, fold and join to provide intimate mixing of the materials in increasing layers of decreasing thickness.
Claim 6
Dependent Claim
95 words
A static mixing device for combining longitudinally flowing materials, comprising, an elongate tubular structure having an inlet at one end for receiving a stream including a plurality of relatively unmixed materials, an outlet at the opposite end for discharging intimately mixed materials, and means defining a passage connecting the inlet and the outlet and shaped to thin, widen and fold the longitudinally flowing stream over upon itself, join the folded layers of the stream, and then repeatedly thin, widen, fold and join to provide intimate mixing of the materials in increasing layers of decreasing thickness.
Claim 7
Dependent Claim
91 words
A static mixing device as defined in claim 4, wherein the means defining said passage comprises a plurality of tubular members end to end each having an inlet end defining a passage area of generally rectangular cross section, an intermediate portion defining a passage area of decreasing thickness and increasing width, and an outlet end defining a passage area having a minimum thickness and a maximum width and folded laterally over upon itself, and means joining the tubular members with the inlets of succeeding members at the outlets of preceding members.
Claim 8
Dependent Claim
40 words
A static mixing device as defined in claim 5 wherein each tubular member has an outlet passage area approximately equal the inlet passage area with a thickness about half the inlet thickness and a width about twice the inlet width.
Claim 9
Dependent Claim
27 words
A static mixing device as defined in claim 5 wherein the outlet ends of preceding tubular members are telescoped within the inlet ends of succeeding tubular members.
Claim 10
Dependent Claim
78 words
A mixing device, comprising, an elongate tubular structure having an inlet adjacent one end, an outlet spaced from the inlet, and means defining a passage communicating the inlet with the outlet, including a tubular member having one end of generally oval cross section having a maximum thickness and a minimum width, an intermediate portion of decreasing thickness and increasing width, and an opposite end having a minimum thickness and a maximum width and folded laterally over upon itself.
Claim 11
Dependent Claim
78 words
A mixing device, comprising, an elongate tubular structure having an inlet adjacent one end, an outlet spaced from the inlet, and means defining a passage communicating the inlet with the outlet, including a tubular member having one end of generally oval cross section having a maximum thickness and a minimum width, an intermediate portion of decreasing thickness and increasing width, and an opposite end having a minimum thickness and a maximum width and folded laterally over upon itself.
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |