Patent US4253247A successfully refreshed from Google Patents.
US4253247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam distributor
Assignee: EPPCO Inc
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Filing: 1979-08-24
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Granted: 1981-03-03
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Expires: 1999-08-24
Abstract
Abstract The specification discloses a hot gas distributor in a paper making machine. The distributor includes a pipe supported by end plates and supporting an elongated hood divided by partitions into a multitude of chambers. Centered in each chamber is a tubular nozzle extending through aligned holes in the pipe. Hot gas in the pipe flows into the nozzle through ports in the nozzle and down through the nozzle into the chamber and through a slotted arcuate plate forming the bottom of the chamber. Adapter blocks on the pipe support the nozzles and bonnets which support pneumatic actuators and through which connecting rods extend. A piston-like control plug or valve member on the rod closes the ports in nozzles to the extents that the pneumatic actuators are set to differentially dry a paper web just below the hood.
Inventors
- 👤 William E. Bergstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:49
CPC Classifications
D; D21; D21F; D21F7/00; D21F7/008; D21F5/00; D21F5/18; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87877
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
170 words
In a hot gas distributor for feeding a hot gas into a chamber from a source of said gas, the combination comprising: a pipe in said chamber for conveying a hot gas from a source thereof, a nozzle tube extending transversely through said pipe, said tube having an inlet port in the wall thereof within said pipe to provide communication between the interior of said tube and said pipe, means mounting said tube at one end thereof to said pipe in gas tight engagement therewith, the other end of said tube opening into said chamber, a valve plug slidably mounted in said tube for movement between a first, valve closing, position between said inlet port and said other end of said tube and a second, valve open, position between said inlet port and said one end of said tube, and a valve actuator mounted exteriorly of said pipe and operatively connected to said valve plug through said tube one end for effecting movement of said valve plug between said positions.
Claim 2
Dependent Claim
170 words
In a hot gas distributor for feeding a hot gas into a chamber from a source of said gas, the combination comprising: a pipe in said chamber for conveying a hot gas from a source thereof, a nozzle tube extending transversely through said pipe, said tube having an inlet port in the wall thereof within said pipe to provide communication between the interior of said tube and said pipe, means mounting said tube at one end thereof to said pipe in gas tight engagement therewith, the other end of said tube opening into said chamber, a valve plug slidably mounted in said tube for movement between a first, valve closing, position between said inlet port and said other end of said tube and a second, valve open, position between said inlet port and said one end of said tube, and a valve actuator mounted exteriorly of said pipe and operatively connected to said valve plug through said tube one end for effecting movement of said valve plug between said positions.
Claim 3
Dependent Claim
169 words
In combination, wall means defining a chamber for receiving a hot gas, a pipe mounted within said chamber adjacent a wall thereof for conveying a hot gas to said chamber from a source thereof, a nozzle tube extending transversely through said pipe substantially normally to said wall, said tube having an inlet port in the wall thereof within said pipe to provide communication between the interior of said tube and said pipe, the end of said tube remote from said chamber wall being in open communication with said chamber, a valve plug slidably mounted in said tube for movement between a first, valve closing, position between said inlet port and said remote tube end and a second, valve open, position between said inlet port and the opposite end of said tube, means removably mounting said tube one end to said chamber wall, and valve actuating means mounted on said mounting means exteriorly of said chamber and operatively connected to said valve plug for moving said plug between said positions.
Claim 4
Dependent Claim
169 words
In combination, wall means defining a chamber for receiving a hot gas, a pipe mounted within said chamber adjacent a wall thereof for conveying a hot gas to said chamber from a source thereof, a nozzle tube extending transversely through said pipe substantially normally to said wall, said tube having an inlet port in the wall thereof within said pipe to provide communication between the interior of said tube and said pipe, the end of said tube remote from said chamber wall being in open communication with said chamber, a valve plug slidably mounted in said tube for movement between a first, valve closing, position between said inlet port and said remote tube end and a second, valve open, position between said inlet port and the opposite end of said tube, means removably mounting said tube one end to said chamber wall, and valve actuating means mounted on said mounting means exteriorly of said chamber and operatively connected to said valve plug for moving said plug between said positions.
Claim 5
Dependent Claim
189 words
In a gas distributor, a pipe for conveying a gas from a source thereof, and valve means for controlling the flow of gas from said pipe including, a tube extending transversely of said pipe through substantially diametric openings therein, an adapter ring secured to the exterior of said pipe concentric with one of said pipe openings, a valve bonnet removably attached to said adapter ring, said tube having a flange on one end thereof clamped between said adapter ring and said bonnet, an inlet port in the wall of said tube, a valve plug slidably mounted in said tube for movement between a first position between said port and the end of said tube remote from said flange and a second position between said port and the other end of said tube, and valve operating means operatively connected to said valve plug and extending through said bonnet for effecting movement of said plug between said positions, whereby said tube and said valve plug may be removed for replacement or repair by disengagement of said bonnet from said adapter ring and withdrawal of said plug and tube through said ring.
Claim 6
Dependent Claim
189 words
In a gas distributor, a pipe for conveying a gas from a source thereof, and valve means for controlling the flow of gas from said pipe including, a tube extending transversely of said pipe through substantially diametric openings therein, an adapter ring secured to the exterior of said pipe concentric with one of said pipe openings, a valve bonnet removably attached to said adapter ring, said tube having a flange on one end thereof clamped between said adapter ring and said bonnet, an inlet port in the wall of said tube, a valve plug slidably mounted in said tube for movement between a first position between said port and the end of said tube remote from said flange and a second position between said port and the other end of said tube, and valve operating means operatively connected to said valve plug and extending through said bonnet for effecting movement of said plug between said positions, whereby said tube and said valve plug may be removed for replacement or repair by disengagement of said bonnet from said adapter ring and withdrawal of said plug and tube through said ring.
Claim 7
Dependent Claim
32 words
The combination of claim 3 wherein said pipe is positioned within a chamber adjacent a wall of chamber, and said bonnet extends outwardly of said chamber through an opening in said wall.
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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) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |