Patent US4429471A successfully refreshed from Google Patents.
US4429471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized bed air distributor
Assignee: Consolidation Coal Co
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Filing: 1981-12-10
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Granted: 1984-02-07
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Expires: 2001-12-10
Abstract
Abstract Fluidized bed apparatus comprising a fluidized chamber having a grid plate below said chamber, a feed gas channel below said grid plate, and a fluidized bed gas distributor, said fluidized bed gas distributor comprising a nipple, a cap, and a bushing, wherein said cap is provided with at least one gas distribution passage, and said nipple includes a central nipple passage and said bushing includes a central bushing passage, said cap being attached to a first end of said nipple said bushing being attached to a second end of said nipple.
Inventors
- 👤 Stephen L. Goodstine
- 👤 Glen D. Jukkola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:25
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1818; F; F26; F26B; F26B3/00; F26B3/02; F26B3/06; F26B3/08; F26B3/082
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
134 words
A gas distributor comprising: a nipple, a cap, and a bushing, wherein said cap is provided with at least one gas distribution passage, and said nipple includes a central nipple passage and said bushing includes a central bushing passage, said cap being attached to a first end of said nipple said bushing being attached to a second end of said nipple said nipple being cylindrical, said central nipple passage being cylindrical, said bushing being cylindrical said central bushing passage being cylindrical, said central nipple passage and said central bushing passage being connected in fluid flow communication, the diameter of said central bushing passage being smaller than the diameter of said central nipple passage, whereby the flow of fluid into said central nipple passage is restricted by said smaller diameter of said central bushing passage.
Claim 2
Dependent Claim
134 words
A gas distributor comprising: a nipple, a cap, and a bushing, wherein said cap is provided with at least one gas distribution passage, and said nipple includes a central nipple passage and said bushing includes a central bushing passage, said cap being attached to a first end of said nipple said bushing being attached to a second end of said nipple said nipple being cylindrical, said central nipple passage being cylindrical, said bushing being cylindrical said central bushing passage being cylindrical, said central nipple passage and said central bushing passage being connected in fluid flow communication, the diameter of said central bushing passage being smaller than the diameter of said central nipple passage, whereby the flow of fluid into said central nipple passage is restricted by said smaller diameter of said central bushing passage.
Claim 3
Dependent Claim
31 words
The gas distribution apparatus of claim 1 wherein said gas distribution apparatus further comprises a coupling, said nipple being attached to said coupling, and said bushing being attached to said coupling.
Claim 4
Dependent Claim
83 words
The gas distribution apparatus of claim 2 wherein said coupling is connected to a fluidized bed grid plate, said coupling being cylindrical and threaded along the inner wall thereof, said nipple being threaded at said second end, said nipple threads engaging said coupling threads, whereby said nipple is connected to said grid plate, said bushing being threaded along at least a portion of the outer wall thereof, said bushing threads engaging said coupling threads, whereby said bushing is connected to said grid plate.
Claim 5
Dependent Claim
16 words
The apparatus of claim 1 wherein said cap is provided with a plurality of cap passages.
Claim 6
Dependent Claim
29 words
The apparatus of claim 4 wherein said cap passages have a central axis which extends across a central axis of said nipple at an angle of less than 90°.
Claim 7
Dependent Claim
201 words
In a fluidized bed apparatus having a fluidized chamber with fluidized material therein and a grid plate at the bottom of said fluidized chamber and a gas distribution passage into said fluidized chamber, the improvement comprising, providing a fluidized bed distributor wherein said fluidized bed distributor comprises a nipple, a cap, and a bushing, wherein said cap is provided with at least one gas distribution passage, and said nipple includes a central nipple passage and said bushing includes a central bushing passage, said cap being attached to a first end of said nipple said bushing being attached to a second end of said nipple said nipple being cylindrical, said central nipple passage being cylindrical, said bushing being cylindrical said central bushing passage being cylindrical, said central nipple passage and said central bushing passage being connected in fluid flow communication, the diameter of said central bushing passage being smaller than the diameter of said central nipple passage, whereby the flow of fluid into said central nipple passage is restricted by said smaller diameter of said central bushing passage said bushing being adapted to be readily separable from said nipple from below said grid plate said nipple being attached to said grid plate.
Claim 8
Dependent Claim
201 words
In a fluidized bed apparatus having a fluidized chamber with fluidized material therein and a grid plate at the bottom of said fluidized chamber and a gas distribution passage into said fluidized chamber, the improvement comprising, providing a fluidized bed distributor wherein said fluidized bed distributor comprises a nipple, a cap, and a bushing, wherein said cap is provided with at least one gas distribution passage, and said nipple includes a central nipple passage and said bushing includes a central bushing passage, said cap being attached to a first end of said nipple said bushing being attached to a second end of said nipple said nipple being cylindrical, said central nipple passage being cylindrical, said bushing being cylindrical said central bushing passage being cylindrical, said central nipple passage and said central bushing passage being connected in fluid flow communication, the diameter of said central bushing passage being smaller than the diameter of said central nipple passage, whereby the flow of fluid into said central nipple passage is restricted by said smaller diameter of said central bushing passage said bushing being adapted to be readily separable from said nipple from below said grid plate said nipple being attached to said grid plate.
Claim 9
Dependent Claim
31 words
The gas distribution apparatus of claim 6 wherein said gas distribution apparatus further comprises a coupling, said nipple being attached to said coupling, and said bushing being attached to said coupling.
Claim 10
Dependent Claim
83 words
The gas distributor apparatus of claim 7 wherein said coupling is connected to a fluidized bed grid plate, said coupling being cylindrical and threaded along the inner wall thereof, said nipple being threaded at said second end, said nipple threads engaging said coupling threads, whereby said nipple is connected to said grid plate, said bushing being threaded along at least a portion of the outer wall thereof, said bushing threads engaging said coupling threads, whereby said bushing is connected to said grid plate.
Claim 11
Dependent Claim
16 words
The apparatus of claim 6 wherein said cap is provided with a plurality of cap passages.
Claim 12
Dependent Claim
28 words
The apparatus of claim 6 wherein said cap passages have a central axis which extends across a central axis of said nipple at an angle less than 90°.
Claim 13
Dependent Claim
188 words
Fluidized bed apparatus comprising a fluidized chamber having a grid plate below said chamber, a feed gas channel below said grid plate, and a fluidized bed gas distributor, said fluidized bed gas distributor comprising a nipple, a cap, and a bushing, wherein said cap is profided with at least one gas distribution passage, and said nipple includes a central nipple passage and said bushing includes a central bushing passage, said cap being attached to a first end of said nipple said bushing being attached to a second end of said nipple said nipple being cylindrical, said central nipple passage being cylindrical, said bushing being cylindrical said central bushing passage being cylindrical, said central nipple passage and said central bushing passage being connected in fluid flow communication, the diameter of said central bushing passage being smaller than the diameter of said central nipple passage, whereby the flow of fluid into said central nipple passage is restricted by said smaller diameter of said central bushing passage said bushing being adapted to be readily separable from said nipple from below said grid plate said nipple being attached to said grid plate.
Claim 14
Dependent Claim
188 words
Fluidized bed apparatus comprising a fluidized chamber having a grid plate below said chamber, a feed gas channel below said grid plate, and a fluidized bed gas distributor, said fluidized bed gas distributor comprising a nipple, a cap, and a bushing, wherein said cap is profided with at least one gas distribution passage, and said nipple includes a central nipple passage and said bushing includes a central bushing passage, said cap being attached to a first end of said nipple said bushing being attached to a second end of said nipple said nipple being cylindrical, said central nipple passage being cylindrical, said bushing being cylindrical said central bushing passage being cylindrical, said central nipple passage and said central bushing passage being connected in fluid flow communication, the diameter of said central bushing passage being smaller than the diameter of said central nipple passage, whereby the flow of fluid into said central nipple passage is restricted by said smaller diameter of said central bushing passage said bushing being adapted to be readily separable from said nipple from below said grid plate said nipple being attached to said grid plate.
Claim 15
Dependent Claim
31 words
The gas distribution apparatus of claim 1 wherein said gas distribution apparatus further comprises a coupling, said nipple being attached to said coupling, and said bushing being attached to said coupling.
Claim 16
Dependent Claim
83 words
The gas distributor apparatus of claim 12 wherein said coupling is connected to a fluidized bed grid plate, said coupling being cylindrical and threaded along the inner wall thereof, said nipple being threaded at said second end, said nipple threads engaging said coupling threads, whereby said nipple is connected to said grid plate, said bushing being threaded along at least a portion of the outer wall thereof, said bushing threads engaging said coupling threads, whereby said bushing is connected to said grid plate.
Claim 17
Dependent Claim
23 words
The apparatus of claim 13 wherein said bushing comprises flange, said flange extending outwardly from said threaded portion of said outer bushing wall.
Claim 18
Dependent Claim
16 words
The apparatus of claim 11 wherein said cap is provided with a plurality of cap passages.
Claim 19
Dependent Claim
29 words
The apparatus of claim 11 wherein said cap passages have a central axis which extends across a central axis of said nipple at an angle of less than 90°.
Claim 20
Independent Claim
301 words
A method of changing the rate of flow of gas into a fluidized bed comprising: providing fluidized bed apparatus comprising a fluidized chamber having a grid plate below said chamber, a feed gas channel opening below said grid plate, and a fluidized bed gas distributor, said fluidized bed gas distributor comprising a nipple, a cap, and a first bushing, wherein said cap is provided with at least one gas distribution passage, and said nipple includes a central nipple passage and said bushing includes a central first bushing passage, said cap being attached to a first end of said nipple said bushing being attached to a second end of said nipple said nipple being cylindrical said central nipple passage being cylindrical, said bushing being cylindrical said central first bushing passage being cylindrical, said central nipple passage and said central first bushing passage being connected in fluid flow communication, the diameter of said central first bushing passage being smaller than the diameter of said central nipple passage, whereby the flow of fluid into said central nipple passage is restricted by said smaller diameter of said central first bushing passage, said first bushing being adapted to be readily separable from said nipple from below said grid plate said nipple being attached to said grid plate, passing gas through said first bushing central passage, through said central nipple passage and through said cap gas distribution passage into said fluidized chamber, replacing said first bushing with a second bushing have a central second bushing passage, said central second passage having an effectively different diameter than said central first bushing passage, passing gas through said second bushing central passage, through said central nipple passage and through said cap gas distribution passage into said fluidized chamber, whereby the rate of gas flow into the fluidized bed is changed.
Claim 21
Independent Claim
301 words
A method of changing the rate of flow of gas into a fluidized bed comprising: providing fluidized bed apparatus comprising a fluidized chamber having a grid plate below said chamber, a feed gas channel opening below said grid plate, and a fluidized bed gas distributor, said fluidized bed gas distributor comprising a nipple, a cap, and a first bushing, wherein said cap is provided with at least one gas distribution passage, and said nipple includes a central nipple passage and said bushing includes a central first bushing passage, said cap being attached to a first end of said nipple said bushing being attached to a second end of said nipple said nipple being cylindrical said central nipple passage being cylindrical, said bushing being cylindrical said central first bushing passage being cylindrical, said central nipple passage and said central first bushing passage being connected in fluid flow communication, the diameter of said central first bushing passage being smaller than the diameter of said central nipple passage, whereby the flow of fluid into said central nipple passage is restricted by said smaller diameter of said central first bushing passage, said first bushing being adapted to be readily separable from said nipple from below said grid plate said nipple being attached to said grid plate, passing gas through said first bushing central passage, through said central nipple passage and through said cap gas distribution passage into said fluidized chamber, replacing said first bushing with a second bushing have a central second bushing passage, said central second passage having an effectively different diameter than said central first bushing passage, passing gas through said second bushing central passage, through said central nipple passage and through said cap gas distribution passage into said fluidized chamber, whereby the rate of gas flow into the fluidized bed is changed.
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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) | 1987-02-06 | 1987-08-08 | 1988-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-06 | 1991-08-08 | 1992-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-06 | 1995-08-08 | 1996-02-07 | $7700.00 | Window Closed / Lapsed |