Patent US4198002A successfully refreshed from Google Patents.
US4198002A
Expired / Lapsed
US
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Reactor distribution duct
Assignee: Glitsch Inc
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Filing: 1978-06-16
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Granted: 1980-04-15
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Expires: 1998-06-16
Abstract
Abstract A distribution duct for a reactor which can be easily fabricated. The duct has an elongated back plate and an elongated perforated front plate made up of flat segments separated by elongated angular breaks, and two flat marginal edge portions on the opposite sides thereof, the marginal edge portions being in flush engagement with, and secured to the back plate adjacent to the sides thereof, the flat segments defining with the back plate a flow chamber.
Inventors
- 👤 Robert W. McClain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:37
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/0278
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
89 words
An improved distribution duct for a reactor vessel comprising: an elongated back plate having two back plate marginal side portions; elongated front plate having a plurality of elongated perforated integral flat segments separated by elongated angular breaks, two front plate marginal side portions on the opposite sides of said front plate, said marginal side portions of said front plate each being crimped together with one of said marginal side portions of said back plate to form a seam, said flat segments and said back plate defining a flow chamber.
Claim 2
Dependent Claim
89 words
An improved distribution duct for a reactor vessel comprising: an elongated back plate having two back plate marginal side portions; elongated front plate having a plurality of elongated perforated integral flat segments separated by elongated angular breaks, two front plate marginal side portions on the opposite sides of said front plate, said marginal side portions of said front plate each being crimped together with one of said marginal side portions of said back plate to form a seam, said flat segments and said back plate defining a flow chamber.
Claim 3
Dependent Claim
47 words
The improved distribution duct defined in claim 1 wherein said front plate marginal portion comprises a flange portion, and said back plate marginal portion comprises a hook portion and an integral outer wall portion, said flange being clasped between said outer wall portion and said hook portion.
Claim 4
Dependent Claim
36 words
The improved distribution duct defined in claim 2 wherein said front plate marginal side portions each further comprise an inner wall portion, said hook portion being clasped between said inner wall portion and said flange portion.
Claim 5
Dependent Claim
29 words
The improved distribution duct defined in claim 1 wherein said back plate is made up of a plurality of longitudinal integral flat panels joined at longitudinally extending annular breaks.
Claim 6
Dependent Claim
15 words
The improved distribution duct defined in claim 1 wherein there are five perforated flat segments.
Claim 7
Dependent Claim
15 words
The improved distribution duct defined in claim 1 wherein there are nine perforated flat segments.
Claim 8
Dependent Claim
31 words
The improved distribution duct defined in claim 1 further comprising a perforated end plate adjacent to one end of said duct and perpendicular to said front plate and said back plate.
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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) | 1983-04-15 | 1983-10-15 | 1984-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-15 | 1987-10-15 | 1988-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-15 | 1991-10-15 | 1992-04-15 | $7700.00 | Window Closed / Lapsed |