Patent US4267626A successfully refreshed from Google Patents.
US4267626A
Expired / Lapsed
US
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Fiber bed element and method for making the same
Assignee: Monsanto Co
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Filing: 1979-04-25
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Granted: 1981-05-19
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Expires: 1999-04-25
Abstract
Abstract A fiber bed element and the method of making the same wherein a roving of glass fibers is fed into the annulus formed by a pair of concentric cylindrical screens, the screens being rotated as the roving is fed. A packing force is applied to the roving to compact the roving to a predetermined density between the screens, the packing force being applied in a direction generally parallel to the axis of the screens such that the roving is compacted in an axial direction with each turn of the roving being sandwiched between adjacent turns. This fiber bed element is useful for removing aerosols or mists from gases.
Inventors
- 👤 Alvah B. Terry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:55
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14; B01D39/16; B01D39/1607; B01D39/1623; B01D39/20; B01D39/2003; B01D39/2017; B01D39/2027; B01D39/2041; B01D46/00; B01D46/24; B01D2239/00; B01D2239/06; B01D2239/069; B01D2239/0695; B01D2239/12; B01D2239/1233; Y; Y10; Y10S; Y10S55/00; Y10S55/05; Y10T; Y10T29/00; Y10T29/49; Y10T29/496; Y10T29/49604; Y10T29/49801
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
80 words
The method of making a fiber bed element, comprising: a. feeding a roving of fibers into the annulus formed by a pair of concentric foraminous screens while rotating said screens, and b. applying a packing force to the roving to compact said roving to a density of 80 to 320 Kg per cubic meter, said packing force being applied in a direction generally parallel to the axis of the screens so that the roving is compacted in an axial direction.
Claim 2
Independent Claim
80 words
The method of making a fiber bed element, comprising: a. feeding a roving of fibers into the annulus formed by a pair of concentric foraminous screens while rotating said screens, and b. applying a packing force to the roving to compact said roving to a density of 80 to 320 Kg per cubic meter, said packing force being applied in a direction generally parallel to the axis of the screens so that the roving is compacted in an axial direction.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein the roving is fed into said annulus in successive turns in such a manner that each turn is compacted between adjacent turns.
Claim 4
Dependent Claim
35 words
The method of claim 1 wherein said roving is fed into said annulus at one location relative to the screens and said packing force is applied at another location circumferentionally spaced from said one location.
Claim 5
Dependent Claim
13 words
The method of claim 3 wherein the roving is made of glass fibers.
Claim 6
Dependent Claim
18 words
The method of claim 4 wherein the glass fibers have a mean diameter of 5 to 50 microns.
Claim 7
Dependent Claim
21 words
The method of claim 5 wherein the roving is packed to a density of 130 to 210 Kg per cubic meter.
Claim 8
Dependent Claim
64 words
A fiber bed element for removing aerosols from gas streams comprising: a. a pair of concentric foraminous screens, and b. a roving of fibers packed in successive turns in the annulus formed by the screens in such a manner that said turns are positioned in a side-by-side relationship, said roving being compacted axially to a density of 80 to 320 Kg per cubic meter.
Claim 9
Dependent Claim
64 words
A fiber bed element for removing aerosols from gas streams comprising: a. a pair of concentric foraminous screens, and b. a roving of fibers packed in successive turns in the annulus formed by the screens in such a manner that said turns are positioned in a side-by-side relationship, said roving being compacted axially to a density of 80 to 320 Kg per cubic meter.
Claim 10
Dependent Claim
13 words
The element of claim 7 wherein the roving is made of glass fibers.
Claim 11
Dependent Claim
18 words
The element of claim 8 wherein the glass fibers have a mean diameter of 5 to 50 microns.
Claim 12
Dependent Claim
21 words
The element of claim 9 wherein the roving is packed to a density of 130 to 210 Kg per cubic meter.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-18 | 1984-11-17 | 1985-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-18 | 1988-11-17 | 1989-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-18 | 1992-11-17 | 1993-05-19 | $7700.00 | Window Closed / Lapsed |