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US3890290A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for filtering particulate matter from a fluid stream

Assignee: Esm Inc
•
Filing: 1974-02-21
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Granted: 1975-06-17
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Expires: 1994-02-21
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Abstract

Abstract A first fabric housing of a woven filter media supporting at its upper and lower end portions by retaining rings includes a longitudinal chamber open at the upper and lower end portions thereof for receiving a fluid stream with entrained particulate matter to be filtered therefrom. A second fabric housing having a longitudinal chamber is concentrically positioned with the first housing and is secured at preselected intervals to the interior surface of the first housing to thereby form a plurality of separate and distinct longitudinal passageways between the first and second housings. The portion of the fluid stream which flows outwardly through the first housing is substantially free of entrained particulate matter which collects on the interior surface of the first housing. The portion of the fluid stream with entrained particulate matter remaining in the first housing chamber enters the open lower end portions of the longitudinal passageways with the fluid stream passing either outwardly through the first housing or inwardly into the chamber of the second housing. The particulate matter is retained within the passageways which are sealed at their upper end portions and collects on the interior surface of the first housing and on the exterior surface of the second housing. The filtered stream, substantially free of particulate matter, passes through the open upper end portion of the second housing chamber to the surrounding atmosphere.

Inventors

  • 👤 Robert V Mccabe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 23:14
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 170 words
AN APPARATUS FOR FILTERING PARTICULATE MATTER FROM A FLUID STREAM COMPRISING, A FIRST FABRIC HOUSING HAVING A LONGITUDINAL CHAMBER WITH AN OPEN UPPER END PORTION AND AN OPEN LOWER PORTION ADAPTED TO RECEICE SAID FLUID STREAM, A SECOND FABRIC HOUSING A LONGITUDINAL CHAMBER CONCENTRICALLY POSITION HN WITHIN SAID FIRST FABRIC HOUSING CHAMBER SAID SECOND FABRIC HOUSING SECURED AT PRESELECTED INTERVALS TO THE INTERIOR SURFACE OF SAID FABRIC HOUSING SUCH THAT SAID CHAMBER THEREOF IS DIVIDED INTO A PLURALITY OF SEPARATE AND DIWTINCT LONGITUDNAL PASSAGEWAYS SURROUNDING SAID SECOND FABRIC HOUSING CHAMBER AND ARRANGED TO RECEIVE SAID FLUIS STREAM, SAID PASSAGEWAYS HAVING SEALED UPPER END PORTIONS AND OPEN LOWER END PORTIONS, MEANS FOR SUPPORTING SAID FIRST FABRIC HOUSING TO RECEIVE SAID FLUID STREAM, AND SAID FABRIC HOUSING HAVING A LOWER END PORTION CONVERGING IN A CONE, SAID CONE HAVING AN ORIFIC ARRANGED TO EXPAND AND CONTACT TO PERMIT DISCHARGE OF PARTICULATE MATTER FROM SAID SECOND FABRIC HOUSING CAMBER THROUGH SAID ORIFIC TO SAID OPEN LOWER END PORTION OF SAID FABRIC HOUSING CHAMBER.
Claim 2
Independent Claim 170 words
AN APPARATUS FOR FILTERING PARTICULATE MATTER FROM A FLUID STREAM COMPRISING, A FIRST FABRIC HOUSING HAVING A LONGITUDINAL CHAMBER WITH AN OPEN UPPER END PORTION AND AN OPEN LOWER PORTION ADAPTED TO RECEICE SAID FLUID STREAM, A SECOND FABRIC HOUSING A LONGITUDINAL CHAMBER CONCENTRICALLY POSITION HN WITHIN SAID FIRST FABRIC HOUSING CHAMBER SAID SECOND FABRIC HOUSING SECURED AT PRESELECTED INTERVALS TO THE INTERIOR SURFACE OF SAID FABRIC HOUSING SUCH THAT SAID CHAMBER THEREOF IS DIVIDED INTO A PLURALITY OF SEPARATE AND DIWTINCT LONGITUDNAL PASSAGEWAYS SURROUNDING SAID SECOND FABRIC HOUSING CHAMBER AND ARRANGED TO RECEIVE SAID FLUIS STREAM, SAID PASSAGEWAYS HAVING SEALED UPPER END PORTIONS AND OPEN LOWER END PORTIONS, MEANS FOR SUPPORTING SAID FIRST FABRIC HOUSING TO RECEIVE SAID FLUID STREAM, AND SAID FABRIC HOUSING HAVING A LOWER END PORTION CONVERGING IN A CONE, SAID CONE HAVING AN ORIFIC ARRANGED TO EXPAND AND CONTACT TO PERMIT DISCHARGE OF PARTICULATE MATTER FROM SAID SECOND FABRIC HOUSING CAMBER THROUGH SAID ORIFIC TO SAID OPEN LOWER END PORTION OF SAID FABRIC HOUSING CHAMBER.
Claim 3
Dependent Claim 29 words
An apparatus for filtering particulate matter from a fluid stream as set forth in claim 1 which includes, means for sealing said first fabric housing open upper End portion.
Claim 4
Dependent Claim 46 words
An apparatus for filtering particulate matter from a fluid stream as set forth in claim 2 which includes, a cap member secured to said first fabric housing upper end portion, and a plurality of openings provided in said cap member and communicating with said longitudinal passageways.
Claim 5
Dependent Claim 41 words
An apparatus for filtering particulate matter from a fluid stream as set forth in claim 3 which includes, each of said openings provided with a nozzle through which said fluid stream flows from said longitudinal passageways substantially free of particulate matter.
Claim 6
Dependent Claim 133 words
An apparatus for filtering particulate matter from a fluid stream as set forth in claim 1 in which said supporting means includes, a first annular ring member secured to and surrounding said first fabric housing upper end portion, a second annular ring member surrounding said first fabric housing lower end portion and cooperating with said first ring member to maintain said first fabric housing in a tubular configuration, a support cage surrounding said first fabric housing and secured to said first and second ring members, and a plurality of horizontally positioned support members secured to the exterior surface of said second fabric housing and the interior surface of said first fabric housing in each of said passageways, said support member arranged to prevent said passageways from collapsing as said fluid stream passes therethrough.
Claim 7
Dependent Claim 52 words
An apparatus for filtering particulate matter from a fluid stream as set forth in claim 1 which includes, said passageways each having a lower open end portion arranged to receive said fluid stream from said first fabric housing chamber, and a sealed upper end portion separated from said first fabric housing chamber.
Claim 8
Dependent Claim 33 words
An apparatus for filtering particulate matter from a fluid stream as set forth in claim 1 which includes, said passageways each having an open upper end portion and a sealed lower end portion.

References Cited (Backward Citations)

US1208994A Cited
US1363753A Cited
US2432757A Cited
US2768707A Cited
US3421666A Cited
US3429108A Cited
US3443366A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-06-16 1978-12-16 1979-06-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-06-16 1982-12-16 1983-06-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-06-16 1986-12-16 1987-06-17 $7700.00 Window Closed / Lapsed

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