US3089167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter tube cleaner
Assignee: Sherwin Williams Co
•
Filing: 1960-10-31
•
Granted: 1963-05-14
•
Expires: 1980-10-31
Abstract
No abstract record available.
Inventors
- 👤 Edward R Jahn
- 👤 Alvin J Zaupa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:10
CPC Classifications
B; B01; B01D; B01D41/00; B01D41/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A FILTER TUBE CLEANER COMPRISING IN COMBINATION A CHAMBER CONTAINING A ROTATABLE SPINDLE FOR CARRYING A FILTER TUBE TO BE CLEANED AND CLEARING THE FILTER SURFACE AND INTERIOR OF HEAVY PARTICLES BY CENTRIFUGAL FORCE, A SECOND CHAMBER CONTAINING A ROTATABLE HOLLOW SPINDLE CARRYING A COLLAR FOR SUPPORTING A FILTER TUBE TO BE CLEANED AND A CAP FOR SECURING THE FILTER TUBE BETWEEN THE CAP AND THE COLLAR, THE CAP AND THE PORTION OF THE HOLLOW SPINDLE BETWEEN THE COLLAR AND THE CAP HAVING OPENINGS, A BRUSH MOUNTED WITHIN SAID SECOND CHAMBER RADIALLY MOVABLE TOWARD SAID HOLLOW SPINDLE FOR CONTACTING THE SURFACE OF THE FILTER TUBE MOUNTED THEREON, A FRAME WORK SUPPORTING BOTH SPINDLES, A MOTOR MOUNTED IN SAID FRAME WORK CONNECTED TO BOTH SPINDLES, AND MEANS FOR FORCING SOL-
Claim 2
Dependent Claim
129 words
A FILTER TUBE CLEANER COMPRISING IN COMBINATION A CHAMBER CONTAINING A ROTATABLE SPINDLE FOR CARRYING A FILTER TUBE TO BE CLEANED AND CLEARING THE FILTER SURFACE AND INTERIOR OF HEAVY PARTICLES BY CENTRIFUGAL FORCE, A SECOND CHAMBER CONTAINING A ROTATABLE HOLLOW SPINDLE CARRYING A COLLAR FOR SUPPORTING A FILTER TUBE TO BE CLEANED AND A CAP FOR SECURING THE FILTER TUBE BETWEEN THE CAP AND THE COLLAR, THE CAP AND THE PORTION OF THE HOLLOW SPINDLE BETWEEN THE COLLAR AND THE CAP HAVING OPENINGS, A BRUSH MOUNTED WITHIN SAID SECOND CHAMBER RADIALLY MOVABLE TOWARD SAID HOLLOW SPINDLE FOR CONTACTING THE SURFACE OF THE FILTER TUBE MOUNTED THEREON, A FRAME WORK SUPPORTING BOTH SPINDLES, A MOTOR MOUNTED IN SAID FRAME WORK CONNECTED TO BOTH SPINDLES, AND MEANS FOR FORCING SOL-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |