US4657742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packed fiber glass reaction vessel
Assignee: PPG Industries Inc
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Filing: 1985-07-01
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Granted: 1987-04-14
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Expires: 2005-07-01
Abstract
Abstract A packed tube of generally parallel aligned fibers is described, wherein the fibers are packed therein at densities of 60 to 100 percent of the theoretical packing density based on the fiber diameters used based on the selected fiber pitch pattern and preferably at 70 to 100 percent of the theoretical. Glass fibers which can be porous and/or hollow are preferred.
Inventors
- 👤 Richard P. Beaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:57
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/28; B01J20/28014; B01J20/28023; B01J20/281; C; C03; C03B; C03B37/00; C03B37/10; C03B37/14; G; G01; G01N; G01N30/00; G01N30/02; G01N30/60; G01N30/6034; G01N30/6043; B01J2220/00; B01J2220/50; B01J2220/54; G01N30/50; G01N30/56; G01N30/6052; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801; Y10T29/49826; Y10T29/49838; Y10T29/49908; Y10T29/49925; Y10T29/49934; Y10T29/53; Y10T29/53996
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
101 words
A packed column consisting essentially of a tube having two ends and being open at both of said ends, a plurality of glass fibers packed in a triangular pitch pattern parallel to each other in said tube with the longitudinal axis of the fibers aligned parallel to the longitudinal axis of said tube, the fiber packing density inside the tube being 70 to 100 percent of the theoretical maximum packing density based on the fiber diameter of said glass fibers, the tube diameter and the triangular pitch pattern of the packing, and wherein, said fibers fill the tube between said ends.
Claim 2
Dependent Claim
101 words
A packed column consisting essentially of a tube having two ends and being open at both of said ends, a plurality of glass fibers packed in a triangular pitch pattern parallel to each other in said tube with the longitudinal axis of the fibers aligned parallel to the longitudinal axis of said tube, the fiber packing density inside the tube being 70 to 100 percent of the theoretical maximum packing density based on the fiber diameter of said glass fibers, the tube diameter and the triangular pitch pattern of the packing, and wherein, said fibers fill the tube between said ends.
Claim 3
Dependent Claim
15 words
The packed column of claim 1 wherein said fibers have pores therein making them porous.
Claim 4
Dependent Claim
16 words
The packed column of claim 1 wherein said fibers have a lumen therein making them hollow.
Claim 5
Dependent Claim
19 words
The packed column of claim 1 wherein said fibers have pores and lumen therein making them porous and hollow.
Claim 6
Dependent Claim
26 words
The packed column of claim 4 wherein said pores in the fibers communicate with the surface of the fibers and the lumen of the same fibers.
Claim 7
Dependent Claim
160 words
A reaction vessel consisting essentially of a tube, a plurality of glass fibers packed in a triangular pitch pattern in said tube, the packing density of the glass fibers being on the order of 70 percent of the maximum theoretical packing density based on the triangular pitch pattern of packing, the diameter of the glass fibers employed and the diameter of the tube, said glass fibers being oriented generally parallel to each other and with respect to the longitudinal axis of the tube so that one end of the glass fibers is at one end of the tube and the other end of said glass fibers is at the other end of said tube to thereby provide fluid flow through the tube along the surfaces of the fibers from the one end of the tube to the other end when fluid is passed into the one end of said tube, and wherein said fibers fill the tube between the ends.
Claim 8
Dependent Claim
160 words
A reaction vessel consisting essentially of a tube, a plurality of glass fibers packed in a triangular pitch pattern in said tube, the packing density of the glass fibers being on the order of 70 percent of the maximum theoretical packing density based on the triangular pitch pattern of packing, the diameter of the glass fibers employed and the diameter of the tube, said glass fibers being oriented generally parallel to each other and with respect to the longitudinal axis of the tube so that one end of the glass fibers is at one end of the tube and the other end of said glass fibers is at the other end of said tube to thereby provide fluid flow through the tube along the surfaces of the fibers from the one end of the tube to the other end when fluid is passed into the one end of said tube, and wherein said fibers fill the tube between the ends.
Claim 9
Dependent Claim
16 words
The reaction vessel of claim 6 wherein said glass fibers have pores therein making them porous.
Claim 10
Dependent Claim
17 words
The reaction vessel of claim 6 wherein said glass fibers have a lumen therein making them hollow.
Claim 11
Dependent Claim
21 words
The reaction vessel of claim 6 wherein said glass fibers have pores and a lumen therein making them porous and hollow.
Claim 12
Dependent Claim
44 words
The reaction vessel of claim 9, wherein said pores of the fibers communicate with the surface of the fibers and wherein at least some of the pores of the fibers communicate with the surface of the fibers and the lumen of the same fibers.
Claim 13
Dependent Claim
92 words
A packed tube consisting essentially of packing of porous glass fibers inside of and along the length of said tube in a triangular pitch pattern with the porous glass fibers oriented in parallel with respect to each other and the longitudinal axis of said tube, the packing of porous glass fibers in the tube being at a density of at least 70 percent of the maximum theoretical packing density based on the diameter of the porous glass fibers used, the internal diameter of the tube and said triangular pitch pattern of packing.
Claim 14
Dependent Claim
92 words
A packed tube consisting essentially of packing of porous glass fibers inside of and along the length of said tube in a triangular pitch pattern with the porous glass fibers oriented in parallel with respect to each other and the longitudinal axis of said tube, the packing of porous glass fibers in the tube being at a density of at least 70 percent of the maximum theoretical packing density based on the diameter of the porous glass fibers used, the internal diameter of the tube and said triangular pitch pattern of packing.
Claim 15
Dependent Claim
15 words
The packed tube of claim 11 wherein the tube is made of a metal material.
Claim 16
Dependent Claim
16 words
The packed tube of claim 11 wherein the tube is made of a thermoplastic resin material.
Claim 17
Dependent Claim
14 words
The packed tube of claim 11, wherein the porous glass fibers are also hollow.
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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) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |