Patent US5335089A successfully refreshed from Google Patents.
Patent US4623017A successfully refreshed from Google Patents.
US4623017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint structure for a tube and a header
Assignee: AGC Inc
•
Filing: 1984-03-12
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Granted: 1986-11-18
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Expires: 2004-03-12
Abstract
Abstract A joint structure for at least one tube and a header, wherein the header comprises a gas chamber, a sand chamber filled with a sealing sand and a partition plate dividing the gas chamber and the sand chamber, and the tube extends from the exterior of the header through the sand chamber and has its one end open in the gas chamber.
Inventors
- 👤 Noriyuki Oda
- 👤 Nobuyuki Kido
- 👤 Keiji Muramatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:14
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; F; F16; F16L; F16L41/00; F16L41/08; F28; F28F; F28F9/00; F28F9/02; F28F9/0229; F28F9/04; F28F9/06; Y; Y10; Y10S; Y10S165/00; Y10S165/051; Y10S165/052; Y10S165/067; Y10S165/068
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
128 words
A joint structure comprising: at least two tubes; a support structure for said tubes; mounting means for mounting said tubes in said support structure and for permitting relative motion therebetween; a header for said tubes; and dividing means disposed in said header, contacting opposite walls thereof and extending across said header, thereby dividing said header into a gas chamber and a sealing chamber, said dividing means comprising a partition plate having an opening therein, said tubes passing in order through said support structure, through said sealing chamber, through said opening of said partition plate, and into said gas chamber, open ends of said tubes being disposed in said gas chamber, wherein said sealing chamber is filled with a gas-sealing means consisting essentially of sand packed around said tubes.
Claim 2
Dependent Claim
128 words
A joint structure comprising: at least two tubes; a support structure for said tubes; mounting means for mounting said tubes in said support structure and for permitting relative motion therebetween; a header for said tubes; and dividing means disposed in said header, contacting opposite walls thereof and extending across said header, thereby dividing said header into a gas chamber and a sealing chamber, said dividing means comprising a partition plate having an opening therein, said tubes passing in order through said support structure, through said sealing chamber, through said opening of said partition plate, and into said gas chamber, open ends of said tubes being disposed in said gas chamber, wherein said sealing chamber is filled with a gas-sealing means consisting essentially of sand packed around said tubes.
Claim 3
Dependent Claim
52 words
The joint structure according to claim 1, wherein said tubes are mounted in passage means of said support structure and said mounting means is disposed in said passage means and comprises means for permitting relative motion of said tubes and said support structure in both axial and transverse directions of said tubes.
Claim 4
Dependent Claim
12 words
The joint structure according to claim 1, wherein the tubes are ceramic.
Claim 5
Dependent Claim
28 words
The joint structure according to claim 1, further comprising compressing means for compressing said sand, said compressing means comprising means for adjusting the position of said partition plate.
Claim 6
Dependent Claim
28 words
The joint structure according to claim 3, further comprising compressing means for compressing said sand, said compressing means comprising means for adjusting the position of said partition plate.
Claim 7
Dependent Claim
19 words
The joint structure according to claim 1, wherein the header is secured to the support structure holding the tubes.
Claim 8
Dependent Claim
19 words
The joint structure according to claim 3, wherein the header is secured to the support structure holding the tubes.
Claim 9
Dependent Claim
19 words
The joint structure according to claim 4, wherein the header is secured to the support structure holding the tubes.
Claim 10
Dependent Claim
12 words
The joint structure according to claim 1, wherein the tubes extends horizontally.
Claim 11
Dependent Claim
12 words
The joint structure according to claim 3, wherein the tubes extend horizontally.
Claim 12
Dependent Claim
12 words
The joint structure according to claim 4, wherein the tubes extend horizontally.
Claim 13
Dependent Claim
21 words
The joint structure according to claim 1, wherein a baffle plate is provided at an upper portion in the sealing chamber.
Claim 14
Dependent Claim
21 words
The joint structure according to claim 3, wherein a baffle plate is provided at an upper portion in the sealing chamber.
Claim 15
Dependent Claim
21 words
The joint structure according to claim 4, wherein a baffle plate is provided at an upper portion in the sealing chamber.
Claim 16
Dependent Claim
40 words
The joint structure according to claim 1, wherein a heating gas or a gas to be heated is passed in the tubes in a heat-exchanging manner with a gas to be heated or a heating gas passed outside the tubes.
Claim 17
Dependent Claim
12 words
The joint structure according to claim 15, wherein the tubes are ceramic.
Claim 18
Dependent Claim
17 words
The joint structure according to claim 1, wherein the tubes are gas-permeable porous tubes functioning as filters.
Claim 19
Dependent Claim
12 words
The joint structure according to claim 17, wherein the tubes are ceramic.
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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) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |