US4050630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite elongated steam chamber
Assignee: Individual
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Filing: 1975-08-01
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Granted: 1977-09-27
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Expires: 1995-08-01
Abstract
Abstract Two or more compartments or steam chamber increments are separated by intermediate walls, and headers or conduits lead into such compartments for individually supplying steam thereto. The bottom wall of the compartments has longitudinal slots through the length thereof for discharging steam from the compartments down on a pulp mat. These slots are formed by upwardly and inwardly turned extensions on the side walls of the chamber in combination with one or more V-shaped troughs, and the upper edge portions of these extensions and the troughs have reversely turned ends for supplying rigidity to these members. In one arrangement, horizontal headers or conduits extend in from one end wall of the steam chamber and have steam supplying portions in the respective compartments. These headers are supported in end walls of the compartments, and tubular supports are mounted on the end or intermediate walls to support the inner ends of the headers and allow expansion and contraction of the headers resulting from temperature changes. In another embodiment, a common steam supply header is employed and individual conduits or hoses extend into the compartments. The individual compartments may be of varying length and the steam supplying members are of the necessary size and associated with steam inlet control means to furnish the required volume of steam.
Inventors
- 👤 Joseph H. Dupasquier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:08
CPC Classifications
D; D21; D21F; D21F7/00; D21F7/008; Y; Y10; Y10S; Y10S261/00; Y10S261/76
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
177 words
A composite elongated steam chamber arranged to be mounted crosswise over a traveling wet mat and arranged to discharge steam down on the mat, comprising a. elongated top, side, bottom and end walls forming a steam compartment, b. a steam supply conduit leading into said compartment for directing steam into said compartment, c. and means delivering steam to said conduit, d. said bottom wall comprising upwardly and inwardly extending portions from each of said side walls extending the length of said chamber and at least one parallel substantially V-shaped trough also extending the length of said chamber between said inwardly extending portions, e. said inwardly extending portions and said V-shaped trough having adjacent upper terminal ends spaced a slight distance apart to form steam discharging slots extending the length of said chamber, said terminal ends being extended in opposite directions away from said slots and being rounded at said slots for providing rigidity to said inwardly extending portions and to said trough at said discharging slots and also providing quiet and low friction passage of steam therethrough.
Claim 2
Dependent Claim
177 words
A composite elongated steam chamber arranged to be mounted crosswise over a traveling wet mat and arranged to discharge steam down on the mat, comprising a. elongated top, side, bottom and end walls forming a steam compartment, b. a steam supply conduit leading into said compartment for directing steam into said compartment, c. and means delivering steam to said conduit, d. said bottom wall comprising upwardly and inwardly extending portions from each of said side walls extending the length of said chamber and at least one parallel substantially V-shaped trough also extending the length of said chamber between said inwardly extending portions, e. said inwardly extending portions and said V-shaped trough having adjacent upper terminal ends spaced a slight distance apart to form steam discharging slots extending the length of said chamber, said terminal ends being extended in opposite directions away from said slots and being rounded at said slots for providing rigidity to said inwardly extending portions and to said trough at said discharging slots and also providing quiet and low friction passage of steam therethrough.
Claim 3
Dependent Claim
330 words
A composite elongated steam chamber arranged to be mounted crosswise over a traveling wet mat and arranged to discharge steam down on the mat, comprising a. elongated top, side, bottom and end walls, b. at least one intermediate wall between said end walls forming separate steam compartments, c. a first horizontal conduit having opposite ends and extending in supported relation through one of said end walls and through said steam compartments, d. means supporting the other end of said first conduit in the other end wall, e. said first conduit having steam supply outlet means for one of said compartments, f. a second horizontal conduit having opposite ends and extending in supported relation through the same end walls as said first conduit and through one only of said steam compartments, g. said second conduit terminating at its other end at said intermediate wall, h. means on said intermediate wall supporting said other end of said second conduit, i. said support means supporting said second conduit in a slidable arrangement to allow expansion and contraction of said conduit as a result of temperature changes, j. said second conduit having steam supply outlet means for the other compartment, k. and means at one end of said steam compartment for delivering steam to each of said conduits, l. said bottom wall comprising upwardly and inwardly extending portions from each of said side walls extending the length of said chamber and at least one parallel substantially V-shaped trough also extending the length of said chamber between said inwardly extending portions, m. said inwardly extending portions and said V-shaped trough having adjacent upper terminal ends spaced a slight distance apart to form steam discharging slots extending the length of said chamber, n. said terminal ends being extended in opposite directions away from said slots and being rounded at said slots for providing rigidity to said inwardly extending portions and said trough at said steam discharging slots and also providing low friction passage of steam therethrough.
Claim 4
Dependent Claim
330 words
A composite elongated steam chamber arranged to be mounted crosswise over a traveling wet mat and arranged to discharge steam down on the mat, comprising a. elongated top, side, bottom and end walls, b. at least one intermediate wall between said end walls forming separate steam compartments, c. a first horizontal conduit having opposite ends and extending in supported relation through one of said end walls and through said steam compartments, d. means supporting the other end of said first conduit in the other end wall, e. said first conduit having steam supply outlet means for one of said compartments, f. a second horizontal conduit having opposite ends and extending in supported relation through the same end walls as said first conduit and through one only of said steam compartments, g. said second conduit terminating at its other end at said intermediate wall, h. means on said intermediate wall supporting said other end of said second conduit, i. said support means supporting said second conduit in a slidable arrangement to allow expansion and contraction of said conduit as a result of temperature changes, j. said second conduit having steam supply outlet means for the other compartment, k. and means at one end of said steam compartment for delivering steam to each of said conduits, l. said bottom wall comprising upwardly and inwardly extending portions from each of said side walls extending the length of said chamber and at least one parallel substantially V-shaped trough also extending the length of said chamber between said inwardly extending portions, m. said inwardly extending portions and said V-shaped trough having adjacent upper terminal ends spaced a slight distance apart to form steam discharging slots extending the length of said chamber, n. said terminal ends being extended in opposite directions away from said slots and being rounded at said slots for providing rigidity to said inwardly extending portions and said trough at said steam discharging slots and also providing low friction passage of steam therethrough.
Claim 5
Dependent Claim
27 words
The composite steam chamber of claim 2 including crossbars secured to adjacent rounded end portions of said extensions and said trough to reinforce said extensions and trough.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-26 | 1981-03-28 | 1981-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-26 | 1985-03-28 | 1985-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-26 | 1989-03-28 | 1989-09-27 | $7700.00 | Window Closed / Lapsed |