Patent US3077988A successfully refreshed from Google Patents.
US3077988A
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Assignee: Ametek Inc
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Filing: 1960-11-02
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Granted: 1963-02-19
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Expires: 1980-11-02
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Anderson
- 👤 Ernie G Seggebruch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:04
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D33/00; B01D33/15; B01D33/21; B01D33/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN A FILTER, A HOUSING; FILTER SURFACE MEANS WITHIN SAID HOUSING ADAPTED TO HAVE FILTER CAKE COLLECTED THEREON; VANE MEANS MOUNTED IN SAID HOUSING AND SET AT A PREDETERMINED DISTANCE FROM SAID FILTER SURFACE MEANS, SAID VANE MEANS BEING ROTATED WITHIN A PLANE SUBSTANTIALLY PARALLEL TO THAT INCLUDING SAID FILTER SURFACE MEANS; POWER MEANS INDEPENDENT OF SAID FILTER SURFACE MEANS FOR ROTATING SAID VANE MEANS; INDICATING MEANS; AND MEANS RESPONSIVE TO THE TORQUE DEVELOPED BY THE ENGAGEMENT BETWEEN SAID VANE MEANS AND CAKE ON SAID FILTER SURFACE MEANS FOR OPERATING SAID INDICATING MEANS.
Claim 2
Dependent Claim
93 words
IN A FILTER, A HOUSING; FILTER SURFACE MEANS WITHIN SAID HOUSING ADAPTED TO HAVE FILTER CAKE COLLECTED THEREON; VANE MEANS MOUNTED IN SAID HOUSING AND SET AT A PREDETERMINED DISTANCE FROM SAID FILTER SURFACE MEANS, SAID VANE MEANS BEING ROTATED WITHIN A PLANE SUBSTANTIALLY PARALLEL TO THAT INCLUDING SAID FILTER SURFACE MEANS; POWER MEANS INDEPENDENT OF SAID FILTER SURFACE MEANS FOR ROTATING SAID VANE MEANS; INDICATING MEANS; AND MEANS RESPONSIVE TO THE TORQUE DEVELOPED BY THE ENGAGEMENT BETWEEN SAID VANE MEANS AND CAKE ON SAID FILTER SURFACE MEANS FOR OPERATING SAID INDICATING MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |