US4158554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for filtering particulate-laden gases
Assignee: UNITED MCGILL Corp A CORP OF OH
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Filing: 1978-04-26
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Granted: 1979-06-19
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Expires: 1998-04-26
Abstract
Abstract A 24-hour operable baghouse plant with on-line maintenance features. The filter cartridge, comprising a tube sheet and a plurality of vertically suspended filters, includes a skeletal framework and a plurality of retaining bars traversing the bottoms of the filters to receive a stud projecting from the end cap of each filter. The tube sheet is equipped with retractable locking bars which cooperate with guide and support members attached to the housing walls to wedge the tube sheet to sealing engagement with the housing.
Inventors
- 👤 Richard P. Bundy
- 👤 D. Bruce Zumsteg
- 👤 Lamson Rheinfrank, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:22
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/0002; B01D46/02; B01D46/04; B01D46/42; B01D46/44; B01D46/46; B01D46/66; B01D46/70; B01D46/71
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
134 words
A baghouse comprising: an open top housing; a closure member to removably seal the top of said housing; a removable filter cartridge insertable in said housing, said cartridge including a tube sheet having a plurality of gas passages therethrough and a plurality of filtering assemblies associated with said gas passages; a tube sheet support surface installed interiorly of said housing around the perimeter thereof; a resilient seal disposed atop said support surface; a plurality of stops secured interiorly of said housing above said support surface; and releasable locking means including a plurality of retractable bars mounted on the upper surface of said tube sheet and extendable to underlie said stops, and inclined blocks wedged between said stops and bars to bias said tube sheet to engagement with the resilient seal of said support surface.
Claim 2
Dependent Claim
134 words
A baghouse comprising: an open top housing; a closure member to removably seal the top of said housing; a removable filter cartridge insertable in said housing, said cartridge including a tube sheet having a plurality of gas passages therethrough and a plurality of filtering assemblies associated with said gas passages; a tube sheet support surface installed interiorly of said housing around the perimeter thereof; a resilient seal disposed atop said support surface; a plurality of stops secured interiorly of said housing above said support surface; and releasable locking means including a plurality of retractable bars mounted on the upper surface of said tube sheet and extendable to underlie said stops, and inclined blocks wedged between said stops and bars to bias said tube sheet to engagement with the resilient seal of said support surface.
Claim 3
Dependent Claim
29 words
The baghouse as in claim 1, said releasable locking means further including tubular sleeves secured to the upper surface of said tube sheet to slidably receive said retractable bars.
Claim 4
Dependent Claim
65 words
The baghouse as in claim 1, including an inclined guide surface sloped from the top of said housing outwardly from the interior of said housing to said support surface whereby said guide surface is engageable with the edge of said tube sheet as said filter cartridge is lowered into said housing to guide said filter cartridge in proper position to rest on said support surface.
References Cited (Backward Citations)
US3550359A
Cited
US3788046A
Cited
US3710552A
Cited
US3849092A
Cited
US3898067A
Cited
US3951628A
Cited
US3959891A
Cited
US4073632A
Cited
US4056374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-18 | 1982-12-18 | 1983-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-18 | 1986-12-18 | 1987-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-18 | 1990-12-18 | 1991-06-19 | $7700.00 | Window Closed / Lapsed |