Patent US1133914A successfully refreshed from Google Patents.
Patent US3244287A successfully refreshed from Google Patents.
US3244287A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous filtration
Assignee: Coleman Instruments Corp
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Filing: 1962-12-21
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Granted: 1966-04-05
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Expires: 1982-12-21
Abstract
No abstract record available.
Inventors
- 👤 John J J Staunton
- 👤 Kenneth R Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:02
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/40; G01N1/4077
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
CONTINUOUS FILTER APPARATUS FOR USE IN A CONTINUOUS ANALYTICAL SYSTEM COMPRISING A FILTER STATION HAVING A SUPPORT MEMBER HAVING THE UPPER SURFACE THEREOF MADE FROM A HYDROPHOBIC MATERIAL, FILTER MEANS MOVABLE OVER SAID UPPER SURFACE OF SAID SUPPORT MEMBER, SAID FILTER MEANS HAVING THE EDGES THEREOF THREATED WITH A HYDROPHOBIC MATERIAL TO CONFINE LIQUID TO THE FILTER TO BE UNTREATED PORTIONS OF THE FILTER MEANS, MEANS FOR DISCHARGING A SOLIDSLIQUID MIXTURE SAMPLE ONTO THE TOP OF SAID FILTER MEANS, SAID SUPPORT MEMBER HAVING AN OPENINT THEREIN OVER WHICH THE FILTER MEANS MOVES AND MEANS COMMUNICATING WITH SAID OPENING FOR COLLECTING LIQUID BENEATH SAID MOVABLE FILTER MEANS, THE SOLIDS REMAINING ON SAID FILTER MEANS, AND MEANS FOR MOVING SAID FILTER MEANS OVER SAID SUPPORT MEMBER, SAID MOVING MEANS COMPRISING A PAIR OF COOPERATING ROLLERS POSITIONED ON OPPOSITE SIDES OF SAID FILTER MEANS AND ENGAGING SAID FILTER MEANS FOR MOVING SAID FILTER MEANS BY SAID FILTER STATION, THE CENTRAL PORTION OF THE ROLLER ENGAGING THE UPPER SURFACE OF THE FILTER MEANS BEING RELIEVED SO AS TO PREVENT CONTACT OF SAID ROLLER WITH SOLIDS CARRIED ON THE FILTER MEANS.
Claim 2
Dependent Claim
186 words
CONTINUOUS FILTER APPARATUS FOR USE IN A CONTINUOUS ANALYTICAL SYSTEM COMPRISING A FILTER STATION HAVING A SUPPORT MEMBER HAVING THE UPPER SURFACE THEREOF MADE FROM A HYDROPHOBIC MATERIAL, FILTER MEANS MOVABLE OVER SAID UPPER SURFACE OF SAID SUPPORT MEMBER, SAID FILTER MEANS HAVING THE EDGES THEREOF THREATED WITH A HYDROPHOBIC MATERIAL TO CONFINE LIQUID TO THE FILTER TO BE UNTREATED PORTIONS OF THE FILTER MEANS, MEANS FOR DISCHARGING A SOLIDSLIQUID MIXTURE SAMPLE ONTO THE TOP OF SAID FILTER MEANS, SAID SUPPORT MEMBER HAVING AN OPENINT THEREIN OVER WHICH THE FILTER MEANS MOVES AND MEANS COMMUNICATING WITH SAID OPENING FOR COLLECTING LIQUID BENEATH SAID MOVABLE FILTER MEANS, THE SOLIDS REMAINING ON SAID FILTER MEANS, AND MEANS FOR MOVING SAID FILTER MEANS OVER SAID SUPPORT MEMBER, SAID MOVING MEANS COMPRISING A PAIR OF COOPERATING ROLLERS POSITIONED ON OPPOSITE SIDES OF SAID FILTER MEANS AND ENGAGING SAID FILTER MEANS FOR MOVING SAID FILTER MEANS BY SAID FILTER STATION, THE CENTRAL PORTION OF THE ROLLER ENGAGING THE UPPER SURFACE OF THE FILTER MEANS BEING RELIEVED SO AS TO PREVENT CONTACT OF SAID ROLLER WITH SOLIDS CARRIED ON THE FILTER MEANS.
References Cited (Backward Citations)
US2734377A
Cited
US3127281A
Cited
US2129754A
Cited
US2349469A
Cited
US2854352A
Cited
US3084987A
Cited
US3098719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |