US3804376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for handling flowable materials
Assignee: Individual
•
Filing: 1972-06-21
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Granted: 1974-04-16
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Expires: 1992-06-21
Abstract
Abstract The invention relates to a device for handling flowable material as fluids and/or powdery substance especially for mixing, homogenizing or kneding while the media are flowing. The device consists essentially of the hollow cylindrical tube and a plurality of helically wound sheet-like elements extending in series longitudinally within the tube. Each element extends to the tube walls throughout its length and divides the tube into different passageways for said fluid. In the device according to the present invention the helically wound sheet-like elements are each provided with a flat extension portion at least at one end extending in the longitudinal direction of the tube element. The sheet-like elements further comprise at least at one of their opposite ends a slot for intermesing with the proceeding or the following sheet-like element. The arrangement is such that there are provided, in the region of the intermeshing, four channels or passageways around the longitudinal axis of the tube element for the flow of fluid.
Inventors
- 👤 H Clasen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:29
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/40; B01F25/42; B01F25/43; B01F25/431; B01F25/4314; B01F25/43141
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
190 words
Apparatus for handling flowable media as fluids and/or powdery substances, especially for mixing, homogenizing as well as kneading the media conveyed therethrough, comprising an elongated tube having a plurality of helically wound sheet-like elements arranged therein one behind the Other to form a row of elements, each of said elements having its longitudinal edges adjacent the inner wall of the tube-like element forming two flow passageways, the leading edge and the trailing edge of adjacent elements forming an angle in a plane transverse to the longitudinal axis of said tube, each of said elements having a flat end portion at least at one of its leading and trailing edges extending in the longitudinal direction of said tube, said end portion having a slot for receiving the adjacent element in said row, said slot extending longitudinally to an extent so that said adjacent elements intermesh for a length at least equal to the length of the flat end portion thereby fixing said adjacent elements with respect to each other and forming four flow passageways therebetween, the total cross sectional area of which is smaller than that of the two flow passageways.
Claim 2
Dependent Claim
190 words
Apparatus for handling flowable media as fluids and/or powdery substances, especially for mixing, homogenizing as well as kneading the media conveyed therethrough, comprising an elongated tube having a plurality of helically wound sheet-like elements arranged therein one behind the Other to form a row of elements, each of said elements having its longitudinal edges adjacent the inner wall of the tube-like element forming two flow passageways, the leading edge and the trailing edge of adjacent elements forming an angle in a plane transverse to the longitudinal axis of said tube, each of said elements having a flat end portion at least at one of its leading and trailing edges extending in the longitudinal direction of said tube, said end portion having a slot for receiving the adjacent element in said row, said slot extending longitudinally to an extent so that said adjacent elements intermesh for a length at least equal to the length of the flat end portion thereby fixing said adjacent elements with respect to each other and forming four flow passageways therebetween, the total cross sectional area of which is smaller than that of the two flow passageways.
Claim 3
Dependent Claim
22 words
The apparatus according to claim 1, wherein the slots in the end portion extends along the longitudinal center line of the elements.
Claim 4
Dependent Claim
27 words
The apparatus according to claim 1 wherein the flat extension portions have a smaller length in the longitudinal direction than the helically wound portions of the elements.
Claim 5
Dependent Claim
50 words
The apparatus according to claim 1 wherein the helically wound portions of the sheet-like elements are twisted in longitudinal direction over an angle of about 180* and wherein the region of intermeshing, the flat extension portions each form an angle of about 90* with the edge of the adjacent element.
Claim 6
Dependent Claim
20 words
The apparatus in accordance with claim 1 wherein in the intermeshing regions the elements are loosely held in intermeshing configuration.
Claim 7
Dependent Claim
15 words
The apparatus according to claim 1 wherein the sheet-like elements are secured to each other.
Claim 8
Dependent Claim
23 words
The apparatus according to claim 1 wherein the intermeshing portions of the elements are surrounded by a ring-like element, contained within the tube.
Claim 9
Dependent Claim
19 words
The apparatus according to claim 7, wherein the intermeshing portions of the elements are connected to the ring element.
Claim 10
Dependent Claim
22 words
The apparatus according to claim 1 wherein the elements are provided with a knife-edged end at least at the ends facing upstream.
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) | 1977-04-15 | 1977-10-15 | 1978-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-15 | 1981-10-15 | 1982-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-15 | 1985-10-15 | 1986-04-16 | $7700.00 | Window Closed / Lapsed |