US4249918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber bed element and process for removing aerosols from gases
Assignee: Monsanto Co
•
Filing: 1979-05-21
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Granted: 1981-02-10
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Expires: 1999-05-21
Abstract
Abstract A fiber bed element and process for removing aerosols from gas streams wherein a bed of fibers is packed to a desired packing density between two foraminous screens. A substantial portion of the fibers in the bed are positioned in a generally parallel arrangement such that the element can be mounted in an operative position with such substantial portion of the fibers extending in a generally vertical direction to enhance drainage of collected aerosols from the element to thereby allow-operation at even high bed velocities with reduced re-entrainment of collected liquid and thereby increase the total collection efficiency of the element. In the process, the bed element is mounted such that the parallel fibers extend in a generally vertical direction and the gas to be treated is passed through the bed at a predetermined velocity.
Inventors
- 👤 Wesley B. Argo
- 👤 Babur M. Kocatas
- 👤 S. A. Ziebold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:03
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/0027; B01D46/003; B01D46/0031; B01D39/00; B01D39/02; B01D39/14; B01D39/20; B01D39/2003; B01D39/2017; B01D46/10; B01D46/24; B22; B22F; B22F3/00; B22F3/002; C; C22; C22C; C22C47/00; C22C47/02; C22C47/06; C22C47/062; C22C47/066; B01D2275/00; B01D2275/10; B22F2998/00; Y; Y10; Y10S; Y10S55/00; Y10S55/25
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
109 words
A fiber bed element for removing aerosols from a moving stream of gas, comprising a bed of fibers having a substantial portion of the voidage between the fibers of the fiber bed extending, with substantial continuity, in a generally vertical direction and a collecting layer wherein said fibers within said bed of fibers, hereinafter referred to a said drainage layer, have a mean diameter of 15-75 microns, said drainage layer being positioned in contact with said collecting layer, said collecting layer having randomly-oriented fibers having a mean diameter of 2-15 microns and being packed to a density greater than the packing density of the fibers in said drainage layer.
Claim 2
Dependent Claim
109 words
A fiber bed element for removing aerosols from a moving stream of gas, comprising a bed of fibers having a substantial portion of the voidage between the fibers of the fiber bed extending, with substantial continuity, in a generally vertical direction and a collecting layer wherein said fibers within said bed of fibers, hereinafter referred to a said drainage layer, have a mean diameter of 15-75 microns, said drainage layer being positioned in contact with said collecting layer, said collecting layer having randomly-oriented fibers having a mean diameter of 2-15 microns and being packed to a density greater than the packing density of the fibers in said drainage layer.
Claim 3
Dependent Claim
12 words
The element of claim 1 wherein the fibers are made of glass.
Claim 4
Dependent Claim
40 words
The element of claim 1 wherein the fiber bed element is cylindrical in configuration, said bed of fibers forming an annulus with a majority of the fibers extending in a direction generally parallel to the longitudinal axis of the element.
Claim 5
Dependent Claim
13 words
The element of claim 1 wherein the element has a generally flat configuration.
Claim 6
Dependent Claim
93 words
A fiber bed element for removing aerosols from a moving stream of gas, comprising a bed of fibers having a substantial portion of the voidage between the fibers of the fiber bed extending, with substantial continuity, in a generally vertical direction and a collecting layer wherein said fibers within said bed of fibers, hereinafter referred to as said drainage layer, have a mean diameter of 75-300 microns, said drainage layer being positioned in contact with said collecting layer, said collecting layer having randomly-oriented fibers having a mean diameter of 20 to 75 microns.
Claim 7
Dependent Claim
93 words
A fiber bed element for removing aerosols from a moving stream of gas, comprising a bed of fibers having a substantial portion of the voidage between the fibers of the fiber bed extending, with substantial continuity, in a generally vertical direction and a collecting layer wherein said fibers within said bed of fibers, hereinafter referred to as said drainage layer, have a mean diameter of 75-300 microns, said drainage layer being positioned in contact with said collecting layer, said collecting layer having randomly-oriented fibers having a mean diameter of 20 to 75 microns.
Claim 8
Dependent Claim
13 words
The element of claim 5 wherein the element has a generally flat configuration.
Claim 9
Dependent Claim
12 words
The element of claim 5 wherein the element has a cylindrical configuration.
Claim 10
Independent Claim
57 words
A method of removing aerosols from a gas, comprising: a. providing a fiber bed element comprising a bed of fibers having a substantial portion of the voidage between the fibers of the fiber bed extending, with substantial continuity, in a generally vertical direction, b. passing the gas through the element substantially normal thereto at a predetermined velocity.
Claim 11
Independent Claim
57 words
A method of removing aerosols from a gas, comprising: a. providing a fiber bed element comprising a bed of fibers having a substantial portion of the voidage between the fibers of the fiber bed extending, with substantial continuity, in a generally vertical direction, b. passing the gas through the element substantially normal thereto at a predetermined velocity.
Claim 12
Dependent Claim
17 words
The process of claim 8 wherein the fibers have a mean diameter of 2 to 75 microns.
Claim 13
Dependent Claim
50 words
The process of claim 9 wherein said fiber bed element and a collecting layer of fibers is provided, said fiber bed element being in contact with the downstream surface of said collecting layer of fibers, said fibers in said collecting layer being randomly distributed and having a smaller mean diameter.
References Cited (Backward Citations)
US2143016A
Cited
US2476582A
Cited
US2537897A
Cited
US2692654A
Cited
US2910763A
Cited
US3540190A
Cited
US4048075A
Cited
US4086070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |