Patent US4432752A successfully refreshed from Google Patents.
US3837151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baghouse dust collector
Assignee: Individual
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Filing: 1972-11-17
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Granted: 1974-09-24
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Expires: 1992-11-17
Abstract
Abstract This invention is directed to a baghouse dust collector of the top inlet type in which the bags are arranged in a plurality of modules, each of which contains a plurality of pairs of bags. Each bag is mounted within a concentric vertical sleeve or shell and the lower end of each bag is operably connected to the lower end of its associated sleeve through a floating type of gastight joint that adapts to variations in bag lengths. Covered access openings are provided adjacent the top and bottom of each sleeve for bag installation and removal. Cleaned gas or air is discharged from an intermediate port in each sleeve, which port also is used for the admission of reverse flow cleaning air or gas.
Inventors
- 👤 R Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:20
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
220 words
In a dust collector designed for top inlet operation, a tubular vertical shell having a height substantially greater than its diameter; gastight means at the top of said shell for supporting therewithin the upper end of a concentrically disposed fabric tube maintained in spaced relation with respect to the interior wall of said shell; a pervious fabric tube having its upper end removably attached to said gastight supporting means and having a length for at least the major portion of the height of said shell; an open ended thimble, movably mounted, is carried within said shell for connection with the lower end of said fabric tube; means for removably connecting the lower end of said fabric tube to the upper end of said thimble; bellow means for effecting a flexible gastight connection between said thimble and said shell; means for maintaining said thimble in substantially spaced concentric relation with respect to said shell; said shell being provided intermediate its ends with at least one exhaust port whereby to permit discharge of particulate-free air or gas that has passed through the walls of said pervious fabric tube into the void defined by the outer wall of said tube, the inner wall of said shell and the said gastight supporting and connecting means adjacent the upper and lower ends of said shell.
Claim 2
Dependent Claim
220 words
In a dust collector designed for top inlet operation, a tubular vertical shell having a height substantially greater than its diameter; gastight means at the top of said shell for supporting therewithin the upper end of a concentrically disposed fabric tube maintained in spaced relation with respect to the interior wall of said shell; a pervious fabric tube having its upper end removably attached to said gastight supporting means and having a length for at least the major portion of the height of said shell; an open ended thimble, movably mounted, is carried within said shell for connection with the lower end of said fabric tube; means for removably connecting the lower end of said fabric tube to the upper end of said thimble; bellow means for effecting a flexible gastight connection between said thimble and said shell; means for maintaining said thimble in substantially spaced concentric relation with respect to said shell; said shell being provided intermediate its ends with at least one exhaust port whereby to permit discharge of particulate-free air or gas that has passed through the walls of said pervious fabric tube into the void defined by the outer wall of said tube, the inner wall of said shell and the said gastight supporting and connecting means adjacent the upper and lower ends of said shell.
Claim 3
Dependent Claim
69 words
The dust collector of claim 1 additionally including, means for causing admittance of particulate-containing air of gas to the top of said fabric tube and passage therethrough for removal of the particulates, and means operably associated with the bottom of said shell and its contained fabric tube for receiving the removed particulates, either directly or as the result of reverse flow cleaning through said at least one exhaust port.
Claim 4
Dependent Claim
42 words
The dust collector of claim 1 in which said shell is provided with normally closed ports adjacent the upper and lower ends of said fabric tube for access thereto and with removable means for maintaining said ports in their normally closed states.
Claim 5
Dependent Claim
44 words
The dust collector of claim 3 in which there are a plurality of said vertical shells and their associated components arranged as a plurality of aligned symmetrically opposed pairs, in each pair of which said access and said exhaust ports extend in opposite directions.
Claim 6
Dependent Claim
56 words
The dust collector of claim 3 in which the said flexible bellow means for effecting said gastight connection between said thimble and said shell comprises a tubular impervious bellows interposed therebetween and having one end securely fastened to the interior of said shell and its other end securely fastened to an annular surface of said thimble.
Claim 7
Dependent Claim
50 words
The dust collector of claim 5 in which said means for maintaining said thimble in spaced concentric relation with respect to said shell comprises an outwardly extending horizontal annular flange formed integrally with said thimble and having an outside diameter such as to be freely slidable vertically within said shell.
Claim 8
Dependent Claim
53 words
The dust collector of claim 5 in which Said means for maintaining said thimble in space concentric relation with respect to said shell comprises a pair of vertically spaced outwardly extending horizontal annular flanges formed integrally with said thimble and having outside diameters such as to be freely slidable vertically within said shell.
Claim 9
Dependent Claim
23 words
The dust collector of claim 3 additionally including means for biasing said thimble downwardly whereby to apply axial tension to said fabric tube.
Claim 10
Dependent Claim
17 words
The dust collector of claim 8 in which said biasing means comprise weights supported by said thimble.
Claim 11
Dependent Claim
28 words
The dust collector of claim 8 in which said biasing means comprise springs interposed between said thimble and a lower portion of the interior wall of said shell.
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |