Patent US3984131A successfully refreshed from Google Patents.
US3984131A
Expired / Lapsed
US
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Packing gland for TiCl4 inlet to oxidizer reactor
Assignee: KEMIRA Inc A GA CORP
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Filing: 1974-11-01
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Granted: 1976-10-05
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Expires: 1994-11-01
Abstract
Abstract A fabricated packed pipe coupling gland suitable for a connection where there is at least one brittle pipe, the coupling forming a pressure tight, leak proof coupling which is semi-rigid. The coupling is particularly useful for coupling glass pipe to metal pipe for conveying highly corrosive vapors at high temperature, for example heated titanium tetrachloride vapors to a reactor for forming titanium dioxide.
Inventors
- 👤 Jacob Christian Gingrich, Jr.
- 👤 Charles Thomas Bell
- 👤 Thomas Ralph Hatchell
- 👤 Benjamin Francis Doty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:08
CPC Classifications
F; F16; F16L; F16L53/00; F16L25/00; F16L25/0072; F16L49/00; F16L49/04; F16L53/70
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
162 words
Pipe coupling means for coupling brittle pipe comprising a outer metallic sleeve means having a flange at each end, means on one of said flanges to form an immovable connection to other conduit means, a plurality of packing rings within said sleeve, at least one metallic lantern ring means interspersed in said packing rings, means to continuously admit a purge gas to said lantern ring under pressure greater than that within said brittle pipe, packing retaining means within said sleeve adjacent one of said flanges, a flanged metallic follower sleeve means fitting within said outer sleeve, said coupling means receiving a brittle pipe of less outer diameter than the inside diameter of any metallic means, means connecting said follower flange to said other sleeve flange means to urge said follower against said packing and said packing against said packing retaining means, said means providing sufficient force to expand said packing thereby holding said brittle pipe in spaced relation from said metallic means.
Claim 2
Dependent Claim
162 words
Pipe coupling means for coupling brittle pipe comprising a outer metallic sleeve means having a flange at each end, means on one of said flanges to form an immovable connection to other conduit means, a plurality of packing rings within said sleeve, at least one metallic lantern ring means interspersed in said packing rings, means to continuously admit a purge gas to said lantern ring under pressure greater than that within said brittle pipe, packing retaining means within said sleeve adjacent one of said flanges, a flanged metallic follower sleeve means fitting within said outer sleeve, said coupling means receiving a brittle pipe of less outer diameter than the inside diameter of any metallic means, means connecting said follower flange to said other sleeve flange means to urge said follower against said packing and said packing against said packing retaining means, said means providing sufficient force to expand said packing thereby holding said brittle pipe in spaced relation from said metallic means.
Claim 3
Dependent Claim
11 words
The coupling of claim 1 including at least two lantern rings.
Claim 4
Dependent Claim
21 words
The coupling of claim 1 wherein said brittle pipe is a short section and is a part of said coupling. k
Claim 5
Dependent Claim
25 words
The coupling of claim 1 wherein said urging means is a plurality of spring loaded bolts through said follower flange and the adjacent sleeve flange.
Claim 6
Dependent Claim
35 words
The coupling of claim 1 including a section of flanged, jacketed fluid cooled metallic conduit attached at the sleeve flange of said coupling away from said brittle pipe, a gasket being between said flange faces.
Claim 7
Dependent Claim
13 words
The coupling of claim 1 wherein said brittle pipe is a silica pipe.
Claim 8
Dependent Claim
13 words
The coupling of claim 1 wherein said packing is thermally and chemically resistent.
Claim 9
Dependent Claim
10 words
The coupling of claim 7 wherein said packing is fiberglass.
Claim 10
Dependent Claim
21 words
The coupling of claim 1 wherein said sleeve, follower and lantern rings are of a thermally and chemically resistent metal alloy.
Claim 11
Dependent Claim
13 words
The coupling of claim 1 wherein said alloy is a high nickel alloy.
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US2608424A
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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) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |