US4422905A
Expired / Lapsed
US
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Method for producing separating nozzle elements used for separating gaseous or vaporous mixtures
Assignee: Karlsruher Institut für Technologie
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Filing: 1980-06-02
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Granted: 1983-12-27
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Expires: 2000-06-02
Abstract
Abstract A method for producing a component of a separation element for separating aaseous or vaporous mixture into fractions, which element is composed of a plurality of separating nozzle structures presenting passages defining mixture supply channels, separating chambers and fraction discharge channels, which method includes: forming a negative mold of the component by: providing a plate of a selected material whose ability to be removed from the plate is influenced by application of selected radiation; irradiating portions of the plate with such radiation in a pattern corresponding to the passages presented by the nozzle structure and to an extent such that material outside of the regions delimiting the passages is removable more easily than material within those regions; and removing the more easily removable material from the plate to create the negative mold of the component and forming the component by: filling the openings in the negative mold with a second material to create a solid plate-shaped member; and removing the negative mold from the plate-shaped member.
Inventors
- 👤 Erwin-Willy Becker
- 👤 Wolfgang Ehrfeld
- 👤 Gunther Krieg
- 👤 Wilhelm Bier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:04
CPC Classifications
B; B01; B01D; B01D59/00; B01D59/10; B01D59/18; B01D53/00; Y; Y10; Y10S; Y10S205/00; Y10S205/918
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
195 words
A method for producing a component of a separation element for separating a gaseous or vaporous mixture into fractions, which element is composed of a plurality of separating nozzle structures presenting passages defining mixture supply channels, separating chambers and fraction discharge channels, said method comprising: forming a negative mold of the component by: providing a layer of a selectively electrically nonconductive material whose ability to be removed is influenced by application of selected radiation and mounting such layer on a substrate of an electrically conductive material; irradiating portions of the layer with such radiation in a pattern corresponding to the passages presented by the nozzle structure and to an extent such that material outside of the regions delimiting the passages is removable more easily than material within those regions; and removing the more easily removable material from the layer to create the negative mold of the component; and forming the component by: filling the openings formed by said step of removing with a second material, which is a metal, by electrochemical deposition to create a solid plate-shaped member; removing the negative mold from the plate-shaped member; and removing the substrate after said step of filling.
Claim 2
Independent Claim
195 words
A method for producing a component of a separation element for separating a gaseous or vaporous mixture into fractions, which element is composed of a plurality of separating nozzle structures presenting passages defining mixture supply channels, separating chambers and fraction discharge channels, said method comprising: forming a negative mold of the component by: providing a layer of a selectively electrically nonconductive material whose ability to be removed is influenced by application of selected radiation and mounting such layer on a substrate of an electrically conductive material; irradiating portions of the layer with such radiation in a pattern corresponding to the passages presented by the nozzle structure and to an extent such that material outside of the regions delimiting the passages is removable more easily than material within those regions; and removing the more easily removable material from the layer to create the negative mold of the component; and forming the component by: filling the openings formed by said step of removing with a second material, which is a metal, by electrochemical deposition to create a solid plate-shaped member; removing the negative mold from the plate-shaped member; and removing the substrate after said step of filling.
Claim 3
Dependent Claim
26 words
Method as defined in claim 1 wherein the radiation employed in said step of irradiating is high energy radiation having a wavelength of less than 4000Å.
Claim 4
Dependent Claim
14 words
Method as defined in claim 2 wherein the radiation is composed of soft X-rays.
Claim 5
Dependent Claim
20 words
Method as defined in claim 1 wherein the radiation employed in said step of irradiation is high energy corpuscular radiation.
Claim 6
Dependent Claim
13 words
Method as defined in claim 4 wherein the corpuscular radiation is electron radiation.
Claim 7
Independent Claim
208 words
A method for producing a component of a separation element for separating a gaseous or vaporous mixtures into fractions, which element is composed of a plurality of separating nozzle structures presenting passages defining mixture supply channels, separating chambers and fraction discharge channels, said method comprising: forming a negative mold of the component by: providing a layer of a selected electrically nonconductive material whose ability to be removed is influenced by application of selected radiation; irradiating portions of the layer with such radiation in a pattern corresponding to the passages presented by the nozzle structure and to an extent such that material outside of the regions delimiting the passages is removable more easily than material within those regions; mounting the layer of a selected material on a substrate of an electrically conductive material after said step of irradiating; and removing the more easily removable material from the layer after said step of mounting to create the negative mold of the component; and forming the component by: filling the openings formed by said step of removing with a second material, which is a metal, by electrochemical deposition to create a solid plate-shaped member; removing the negative mold from the plate-shaped member; and removing the substrate after said step of filling.
Claim 8
Independent Claim
208 words
A method for producing a component of a separation element for separating a gaseous or vaporous mixtures into fractions, which element is composed of a plurality of separating nozzle structures presenting passages defining mixture supply channels, separating chambers and fraction discharge channels, said method comprising: forming a negative mold of the component by: providing a layer of a selected electrically nonconductive material whose ability to be removed is influenced by application of selected radiation; irradiating portions of the layer with such radiation in a pattern corresponding to the passages presented by the nozzle structure and to an extent such that material outside of the regions delimiting the passages is removable more easily than material within those regions; mounting the layer of a selected material on a substrate of an electrically conductive material after said step of irradiating; and removing the more easily removable material from the layer after said step of mounting to create the negative mold of the component; and forming the component by: filling the openings formed by said step of removing with a second material, which is a metal, by electrochemical deposition to create a solid plate-shaped member; removing the negative mold from the plate-shaped member; and removing the substrate after said step of filling.
Claim 9
Dependent Claim
26 words
Method as defined in claim 6, wherein the radiation employed in said step of irradiating is high energy radiation having a wavelength of less than 4000Å.
Claim 10
Dependent Claim
14 words
Method as defined in claim 6, wherein the radiation is composed of soft X-rays.
Claim 11
Dependent Claim
20 words
Method as defined in claim 6, wherein the radiation employed in said step of irradiating is high energy corpuscular radiation.
Claim 12
Dependent Claim
13 words
Method as defined in claim 9, wherein the corpuscular radiation is electron radiation.
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) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |