Patent US5390546A successfully refreshed from Google Patents.
US3837147A
Expired / Lapsed
US
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Device for separating mixtures of gaseous and/or vaporous substances especially for separation of carrier gas in devices for gaschromatography
Assignee: Individual
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Filing: 1973-08-09
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Granted: 1974-09-24
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Expires: 1993-08-09
Abstract
Abstract The invention relates to a device for separating mixtures of gaseous and/or vaporous substances which comprises a separating chamber for said mixture provided with an inlet for viscous flow, a first exit for molecular flow having the form of an elongated slit wherein the slit width preferably is adjustable, and a second exit for viscous flow, especially for separation of a carrier gas in devices for gaschromatography. (Compare U.S. Pat. application Ser. No. 25,919).
Inventors
- 👤 C Brunnee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:50
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/60; G01N30/6052; G01N30/606
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
97 words
A device for separating mixtures of gaseous and/or vaporous substances comprising, a cylindrical hollow body having sealed end wall means defining an elongated separating chamber between said end wall means, an inlet through said body communicating with said separating chamber and through which the mixture viscously flows into the separating chamber, a first exit within said body communicating with said separating chamber and formed by an elongated slit in said body opposite said inlet defined by facing edges of said body, and a second exit through said body communicating with said separating chamber for carrying viscous flow.
Claim 2
Independent Claim
97 words
A device for separating mixtures of gaseous and/or vaporous substances comprising, a cylindrical hollow body having sealed end wall means defining an elongated separating chamber between said end wall means, an inlet through said body communicating with said separating chamber and through which the mixture viscously flows into the separating chamber, a first exit within said body communicating with said separating chamber and formed by an elongated slit in said body opposite said inlet defined by facing edges of said body, and a second exit through said body communicating with said separating chamber for carrying viscous flow.
Claim 3
Dependent Claim
32 words
The device of claim 1 wherein said slit is formed by a wedge shaped opening, said facing edges being parallel to define a constant slit width along the length of the slit.
Claim 4
Dependent Claim
25 words
The device of claim 2 wherein said inlet and said second exit are disposed at opposite ends of said body adjacent their respective end walls.
Claim 5
Dependent Claim
17 words
The device of claim 3 wherein said inlet and second exit are disposed opposite said first exit.
Claim 6
Independent Claim
135 words
A device for separating mixtures of gaseous and/or vaporous substances comprising, a solid body having an elongated trough disposed therein defining an elongated opening in the polished upper surface of said body, said trough defining in part a separating chamber, an inlet through said body at one end of said trough communicating with separating chamber and through which the mixture viscously flows into the separating chamber, a plate means lying upon said upper surface of said body and partially closing said opening formed by the trough to the extent of forming an elongated slit defining a first exit communicating with the separating chamber, and at second exit at the other end of said trough communicating with said separating chamber for carrying viscous flow said separating chamber being positioned between said inlet and said second exit.
Claim 7
Independent Claim
135 words
A device for separating mixtures of gaseous and/or vaporous substances comprising, a solid body having an elongated trough disposed therein defining an elongated opening in the polished upper surface of said body, said trough defining in part a separating chamber, an inlet through said body at one end of said trough communicating with separating chamber and through which the mixture viscously flows into the separating chamber, a plate means lying upon said upper surface of said body and partially closing said opening formed by the trough to the extent of forming an elongated slit defining a first exit communicating with the separating chamber, and at second exit at the other end of said trough communicating with said separating chamber for carrying viscous flow said separating chamber being positioned between said inlet and said second exit.
Claim 8
Dependent Claim
41 words
The device of claim 5 wherein said trough is disposed in a polished upper surface of said solid body and said plate means includes a flat plate having a polished lower surface lying upon the upper surface of said solid body.
Claim 9
Dependent Claim
29 words
The device of claim 6 wherein said flat plate has a straight edge, forming with a straight edge defining the trough, a straight elongated slit for the first exit.
Claim 10
Dependent Claim
18 words
The device of claim 6 wherein said plate means includes a bipartite plate having a polished lower surface.
Claim 11
Dependent Claim
17 words
The device of claim 7 wherein said solid body is in the form of a rectangular block.
Claim 12
Dependent Claim
16 words
The device of claim 5 wherein said solid body is tubular having a polished upper surface.
Claim 13
Dependent Claim
42 words
The device of claim 7 wherein the upper surface of said solid body is a plane surface and the lower surface of said flat plate is a plane surface, and said body and plate are thus easily moved relative to each other.
References Cited (Backward Citations)
US3528221A
Cited
US3678656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |