US3121685A
Expired / Lapsed
US
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Assignee: Sperry Gyroscope Co Ltd
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Filing: 1960-12-12
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Granted: 1964-02-18
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Expires: 1980-12-12
Abstract
No abstract record available.
Inventors
- 👤 Hazell Raymond Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:44
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/02; B01D29/00; B01D29/01; B01D29/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
FILTERING MEANS FOR THE FLUID FLOWING IN A AHYDRAULIC LINE INCLUDING A COUPLING HAVING A MEMBER LOCATED IN UPSTREAM RELATION IN THE LINE HAVING AN INLET PASSAGEWAY, A MEMBER HAVING AN OUTLET PASSAGEWAY LOCATED IN DOWNSTREAM RELATION IN THE LINE PROVIDING A CHAMBER OF CYLINDRICAL CONFIGURATION WITH THE UPSTREAM MEMBER ARRANGED WITH ITS LONGITUDINAL AXIS CORRESPONDING TO THE LINE OF FLUID FLOW, SAID CHAMBER HAVING A PERIPHERAL WALL, AN UPSTREAM END WALL, A FLAT IMPERVIOUS DOWNSTREAM END WALL, AND AN ANNULAR CHANNEL IN THE PERIPHERAL WALL ADJACENT THE DOWNSTREAM END WALL, PASSAGEWAY MEANS IN THE DOWNSTREAM MEMBER CONNECTING THE OUTLET PASSAGEWAY AND THE ANNULAR CHANNEL, AND A BLOCK OF RIGID POROUS MATERIAL OF A CONFIGURATION CONFORMING TO THE CYLINDRICAL CHAMBER HAVING A PERIPHERAL SURFACE WITH AN UPSTREAM PORTION ABUTTING THE PERIPHERAL WALL OF THE CHAMBER AND A DOWNSTREAM PORTION ADJACENT TO THE ANNULAR CHAMBER, AN UPSTREAM END SURFACE, AND A FLAT DOWNSTREAM END SURFACE ABUTTING THE DOWNSTREAM END WALL OF THE CHAMBER PROVIDING A FILTER THROUGH WHICH THE FLUID FROM THE INLET PASSAGEWAY FLOWS TO THE OUTLET PASSAGEWAY BY WAY OF THE CHANNEL AND PASSAGEWAY MEANS.
Claim 2
Dependent Claim
186 words
FILTERING MEANS FOR THE FLUID FLOWING IN A AHYDRAULIC LINE INCLUDING A COUPLING HAVING A MEMBER LOCATED IN UPSTREAM RELATION IN THE LINE HAVING AN INLET PASSAGEWAY, A MEMBER HAVING AN OUTLET PASSAGEWAY LOCATED IN DOWNSTREAM RELATION IN THE LINE PROVIDING A CHAMBER OF CYLINDRICAL CONFIGURATION WITH THE UPSTREAM MEMBER ARRANGED WITH ITS LONGITUDINAL AXIS CORRESPONDING TO THE LINE OF FLUID FLOW, SAID CHAMBER HAVING A PERIPHERAL WALL, AN UPSTREAM END WALL, A FLAT IMPERVIOUS DOWNSTREAM END WALL, AND AN ANNULAR CHANNEL IN THE PERIPHERAL WALL ADJACENT THE DOWNSTREAM END WALL, PASSAGEWAY MEANS IN THE DOWNSTREAM MEMBER CONNECTING THE OUTLET PASSAGEWAY AND THE ANNULAR CHANNEL, AND A BLOCK OF RIGID POROUS MATERIAL OF A CONFIGURATION CONFORMING TO THE CYLINDRICAL CHAMBER HAVING A PERIPHERAL SURFACE WITH AN UPSTREAM PORTION ABUTTING THE PERIPHERAL WALL OF THE CHAMBER AND A DOWNSTREAM PORTION ADJACENT TO THE ANNULAR CHAMBER, AN UPSTREAM END SURFACE, AND A FLAT DOWNSTREAM END SURFACE ABUTTING THE DOWNSTREAM END WALL OF THE CHAMBER PROVIDING A FILTER THROUGH WHICH THE FLUID FROM THE INLET PASSAGEWAY FLOWS TO THE OUTLET PASSAGEWAY BY WAY OF THE CHANNEL AND PASSAGEWAY MEANS.
References Cited (Backward Citations)
US2748802A
Cited
DE945801C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-17 | 1967-08-19 | 1968-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-17 | 1971-08-19 | 1972-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-17 | 1975-08-19 | 1976-02-18 | $7700.00 | Window Closed / Lapsed |