Patent US5454858A successfully refreshed from Google Patents.
US5454858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of using mist collector cartridge
Assignee: Donaldson Co Inc
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Filing: 1994-12-12
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Granted: 1995-10-03
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Expires: 2014-12-12
Abstract
Abstract A mist collector cartridge for collecting airborne liquids, and more particularly, a filter media having vertically oriented interconnected pleats treated with a low surface energy material to facilitate agglomeration and drainage of liquid which accumulates on the inner and outer surface of the filter media.
Inventors
- 👤 Joseph C. Tokar
- 👤 Mervin E. Wright
- 👤 Timothy H. Grafe
- 👤 James A LeBlanc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:44
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/52; B01D46/521; B01D39/00; B01D39/14; B01D39/16; B01D39/1607; B01D39/1623; B01D46/0001; B01D46/0002; B01D46/0005; B01D46/0027; B01D46/003; B01D46/24; B01D46/2403; B01D46/2411; B01D46/56; B01D46/62; B01D46/88
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
119 words
A method for separating and collecting airborne liquids using a filtration system, comprising the steps of: a) providing a filter media having vertical pleats with a separation therebetween and pleat spacing means for maintaining the separation between the vertical pleats, the filter media having an air inlet surface and an air outlet surface; b) treating the filter media with filter treatment means for agglomerating liquids which contact the media to promote drainage of the liquid downward along the vertical pleats; c) forcing air containing the liquid from the air inlet surface of the filter media to the air outlet surface so that liquid is collected on the filter media; and d) collecting liquid which drains from the vertical pleats.
Claim 2
Independent Claim
119 words
A method for separating and collecting airborne liquids using a filtration system, comprising the steps of: a) providing a filter media having vertical pleats with a separation therebetween and pleat spacing means for maintaining the separation between the vertical pleats, the filter media having an air inlet surface and an air outlet surface; b) treating the filter media with filter treatment means for agglomerating liquids which contact the media to promote drainage of the liquid downward along the vertical pleats; c) forcing air containing the liquid from the air inlet surface of the filter media to the air outlet surface so that liquid is collected on the filter media; and d) collecting liquid which drains from the vertical pleats.
Claim 3
Dependent Claim
17 words
The method of claim 1 wherein the filter treatment means comprises a low surface energy coating material.
Claim 4
Dependent Claim
16 words
The method of claim 2 wherein the low surface energy coating material comprises an aliphatic fluorocarbon.
Claim 5
Dependent Claim
17 words
The method of claim 1 wherein the pleat spacing means are integrally formed in the filter media.
References Cited (Backward Citations)
US3290870A
Cited
US3488928A
Cited
US3802160A
Cited
US4160684A
Cited
US4211543A
Cited
US4243397A
Cited
US4452619A
Cited
DE3444387A1
Cited
GB2152399A
Cited
US4676807A
Cited
EP0208515A2
Cited
US4759782A
Cited
GB2197802A
Cited
WO1989007487A1
Cited
US5129923A
Cited
US4878929A
Cited
US5082476A
Cited
US5238474A
Cited
US5154742A
Cited
US5306321A
Cited
US5290330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-02 | 1999-04-03 | 1999-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-02 | 2003-04-03 | 2003-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-02 | 2007-04-03 | 2007-10-03 | $7700.00 | Window Closed / Lapsed |