Patent US3850596A successfully refreshed from Google Patents.
US3850596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-solids separator with access platform
Assignee: Fuller Co
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Filing: 1972-09-13
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Granted: 1974-11-26
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Expires: 1992-09-13
Abstract
Abstract A gas-solids separator generally known as a baghouse which employs elongated fabric filter elements mounted in a housing with each filter element flow connected to an opening in a tube sheet. Gas to be filtered enters the housing below the tube sheet and passes through the openings in the tube sheet and the filter elements. Particles of dust are collected on the filter elements and cleaned gas is exhausted from the area above the tube sheet. The filter elements are grouped to define walkways along the tube sheet to permit access to the lower portion of each of the filter elements. An elevated platform is mounted in the housing to permit access to the upper end of the filter elements. The horizontal width of the platform can be increased to permit its use by a maintenance man and decreased when the separator is filtering gas so that the filter bags do not contact the platform. This platform can be pivoted about its own longitudinal axis between a position which permits its use by a maintenance man and a position which prevents contact between the platform and the filter elements. A guard rail is provided on the platform.
Inventors
- 👤 E Fisher
- 👤 F Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:01
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
234 words
In a gas-solids separator for filtering gases including a housing, a tube sheet mounted in and dividing said housing into an upper and lower chamber and having a plurality of openings therein; a plurality of elongated filters mounted in rows in one of said chambers, means for securing one end of each of said filter to said tube sheet so that each is flow connected to one of said openings whereby communication between said chambers is solely through said openings and said filters when the separator is filtering gases; means for supporting the other end of said filters in said one of said chambers, means for supplying gas to be filtered to one of said chambers and means for exhausting filtered gas from the other of said chambers; means for permitting access to the means for supporting the other end of said filters comprising: at least one platform pivotally mounted in said housing between adjacent rows of filters; said platform being dimensioned to be wider than the distance between adjacent rows of the filters, and means operatively connected to said platform for changing the position of said platform from a first nonoperating position to a second operating position including means for pivoting said platform about its own longitudinal axis parallel to the axis of said rows when it is desired to gain access to the means for supporting the other end of the filters.
Claim 2
Dependent Claim
234 words
In a gas-solids separator for filtering gases including a housing, a tube sheet mounted in and dividing said housing into an upper and lower chamber and having a plurality of openings therein; a plurality of elongated filters mounted in rows in one of said chambers, means for securing one end of each of said filter to said tube sheet so that each is flow connected to one of said openings whereby communication between said chambers is solely through said openings and said filters when the separator is filtering gases; means for supporting the other end of said filters in said one of said chambers, means for supplying gas to be filtered to one of said chambers and means for exhausting filtered gas from the other of said chambers; means for permitting access to the means for supporting the other end of said filters comprising: at least one platform pivotally mounted in said housing between adjacent rows of filters; said platform being dimensioned to be wider than the distance between adjacent rows of the filters, and means operatively connected to said platform for changing the position of said platform from a first nonoperating position to a second operating position including means for pivoting said platform about its own longitudinal axis parallel to the axis of said rows when it is desired to gain access to the means for supporting the other end of the filters.
Claim 3
Dependent Claim
24 words
In a gas-solids separator according to claim 1, said means for permitting access further comprising means for securing said platform in the operative position.
Claim 4
Dependent Claim
25 words
In a gas-solids separator according to claim 2, said means for permitting access further comprising ladder means extending from said tube sheet to said platform.
Claim 5
Dependent Claim
28 words
In a gas-solids separator according to claim 3, said means for pivoting said platform being operable from a position accessible to an operator standing on said tube sheet.
Claim 6
Dependent Claim
22 words
In a gas-solids separator according to claim 4, said means for permitting access further comprising guard rails pivotally connected to said platform.
Claim 7
Dependent Claim
228 words
A gas-solids separator comprising: a housing; a tube sheet dividing said housing into an upper chamber and a lower chamber and having a plurality of openings therethrough; a plurality of elongated, generally vertically extending filter elements mounted in said upper chamber; the lower end of each filter element flow connected to one of the openings in said tube sheet whereby the sole communication between said lower chamber and said upper chamber is through said openings and said filter elements; means for supporting the upper end of said filter elements; said openings in said tube sheet and said filter elements being grouped to define at least one walkway along said tube sheet to permit access to the lower end of said filter elements; means for permitting access to the upper end of said filter elements including at least one platform means mounted in said housing above said tube sheet and means operatively connected to said platform means for changing the position of said platform means including means for pivoting said platform about its own longitudinal axis parallel to the axis of said group when it is desired to gain access to the upper end of said fiLter elements said platform means being dimensioned to be wider from said longitudinal axis to its edge than the distance from said longitudinal axis to the group of filter elements adjacent said edge.
Claim 8
Dependent Claim
228 words
A gas-solids separator comprising: a housing; a tube sheet dividing said housing into an upper chamber and a lower chamber and having a plurality of openings therethrough; a plurality of elongated, generally vertically extending filter elements mounted in said upper chamber; the lower end of each filter element flow connected to one of the openings in said tube sheet whereby the sole communication between said lower chamber and said upper chamber is through said openings and said filter elements; means for supporting the upper end of said filter elements; said openings in said tube sheet and said filter elements being grouped to define at least one walkway along said tube sheet to permit access to the lower end of said filter elements; means for permitting access to the upper end of said filter elements including at least one platform means mounted in said housing above said tube sheet and means operatively connected to said platform means for changing the position of said platform means including means for pivoting said platform about its own longitudinal axis parallel to the axis of said group when it is desired to gain access to the upper end of said fiLter elements said platform means being dimensioned to be wider from said longitudinal axis to its edge than the distance from said longitudinal axis to the group of filter elements adjacent said edge.
Claim 9
Dependent Claim
84 words
A gas-solids separator according to claim 6 wherein said platform means is parallel to the walkway along said tube sheet and is adapted to be pivoted between a position which permits said platform means to be used by an operator and a position which prevents said filter elements from contacting said platform means and said means for permitting access to the upper end of said filter elements further includes means for latching said platform means in a position which permits use by an operator.
Claim 10
Dependent Claim
31 words
A gas-solids separator according to claim 7 wherein said means for permitting access to the upper end of said filter elements further includes guard rails pivotally mounted on said platform means.
Claim 11
Dependent Claim
34 words
A gas-solids separator according to claim 8 wherein said means for permitting access to the upper end of said filter elements further includes ladder means extending from said tube sheet to said platform means.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |